diff --git a/game/game.jai b/game/game.jai
index 9030e64..971c4e7 100644
--- a/game/game.jai
+++ b/game/game.jai
@@ -19,10 +19,11 @@ game_ui :: () {
 }
 
 game_tick :: () {
-	if input_button_states[#char "W"] & .START then char_pos += Vector3.{1.0, 0.0, 0.0};
-	if input_button_states[#char "S"] & .START then char_pos += Vector3.{-1.0, 0.0, 0.0};
-	if input_button_states[#char "A"] & .START then char_pos += Vector3.{0.0, 0.0, 1.0};
-	if input_button_states[#char "D"] & .START then char_pos += Vector3.{0.0, 0.0, -1.0};
+	speed := 0.1;
+	if input_button_states[#char "W"] & .DOWN then char_pos += speed * Vector3.{-1.0, 0.0, 0.0};
+	if input_button_states[#char "S"] & .DOWN then char_pos += speed * Vector3.{1.0, 0.0, 0.0};
+	if input_button_states[#char "A"] & .DOWN then char_pos += speed * Vector3.{0.0, 0.0, 1.0};
+	if input_button_states[#char "D"] & .DOWN then char_pos += speed * Vector3.{0.0, 0.0, -1.0};
 	cam.target = char_pos;
 	cam.position = char_pos + .{10,5,0};
 }
diff --git a/game/resources/postprocess.json b/game/resources/postprocess.json
index d08262e..033010b 100644
--- a/game/resources/postprocess.json
+++ b/game/resources/postprocess.json
@@ -1,8 +1,16 @@
 {
- "exposure": 0.057475,
- "contrast": 1.075945,
- "saturation": 1.202777,
- "gamma": 1.019477,
+ "exposure": -0.239281,
+ "contrast": 1.821381,
+ "saturation": 0.988528,
+ "gamma": 2.194679,
  "tonemap": 1,
- "ssao": 2.603531
+ "ssao": 0.864454,
+ "dilate_separation": 1.318038,
+ "dilate_size": 7,
+ "dilate_min": 0.142381,
+ "dilate_max": 0.242047,
+ "dof_blur_size": 2,
+ "dof_min": 2.750411,
+ "dof_max": 15.987307,
+ "dof_point": 14.644861
 }
\ No newline at end of file
diff --git a/game/resources/worlds.json b/game/resources/worlds.json
index 1bd6a4f..75bb248 100644
--- a/game/resources/worlds.json
+++ b/game/resources/worlds.json
@@ -214,16 +214,17 @@
    },{
     "trileName": "pillar_top",
     "positions": [
-     0,2,2,1,0,1,-1,1,-3,2,-1,1,-3,3,2,1
+     0,2,2,1,0,1,-1,1,-3,2,-1,1,-3,3,2,1,-46,3,-13,1,-46,4,-15,1,-48,4,-15,1,-48,4,-13,1
     ]
    },{
     "trileName": "test",
     "positions": [
-     -3,1,-1,1,0,1,2,1,-3,1,2,1,0,0,2,1,-3,0,2,1,-3,0,-1,1,0,0,-1,1,-3,2,2,1
+     -3,1,-1,1,0,1,2,1,-3,1,2,1,0,0,2,1,-3,0,2,1,-3,0,-1,1,0,0,-1,1,-3,2,2,1,-46,0,-15,1,-46,0,-13,1,-48,0,-13,1,-48,0,-15,1,-46,1,-15,1,-46,1,-13,1,-48,1,-13,1,-48,1,-15,1,-46,2,-15,1,-46,2,-13,1,-48,2,-13,1,-48,2,-15,1,-48,3,-13,1,-48,3,-15,1,-46,3,-15,1
     ]
    },{
     "trileName": "plat",
     "positions": [
+     -47,3,-15,1,-47,3,-14,1,-48,3,-14,1,-46,3,-14,1,-47,3,-13,1
     ]
    },{
     "trileName": "deck",
diff --git a/src/main.jai b/src/main.jai
index 57b5ca3..b0ffb71 100644
--- a/src/main.jai
+++ b/src/main.jai
@@ -35,6 +35,7 @@ V_MINOR :: 5;
 
 state: struct {
     pass_action_clear : sg_pass_action;
+    pass_action_clear_gbuf : sg_pass_action;
     pass_action       : sg_pass_action;
     dpi_scale         : float;
     fons              : *FONScontext;
@@ -88,6 +89,7 @@ init :: () {
     create_pipelines();
 
     state.pass_action_clear.colors[0] = .{ load_action = .CLEAR, clear_value = .{ r = 0, g = 0, b = 0, a = 0 } };
+    state.pass_action_clear_gbuf.colors[0] = .{ load_action = .CLEAR, clear_value = .{ r = 0, g = 0, b = 1000, a = 0 } };
     state.pass_action.colors[0] = .{ load_action = .LOAD };
 
     init_asset_pack_load();
diff --git a/src/rendering/backend_sokol.jai b/src/rendering/backend_sokol.jai
index 7bbf273..d4ce12b 100644
--- a/src/rendering/backend_sokol.jai
+++ b/src/rendering/backend_sokol.jai
@@ -8,7 +8,7 @@ current_trile_offset_index : s32 = 0;
 current_world_config : *World_Config = null;
 in_shadowmap_pass    : bool = false;
 in_reflection_pass   : bool = false;
-in_gbuffer_pass     : bool = false;
+in_gbuffer_pass      : bool = false;
 shadow_mvp           : Matrix4;
 
 backend_handle_command :: (cmd: *Render_Command) {
@@ -30,7 +30,11 @@ backend_handle_command :: (cmd: *Render_Command) {
             update_image_from_ground(gen_command.world, *gPipelines.plane.bind.images[1]);
         case .DRAW_GROUND;
             ground_command := cast(*Render_Command_Draw_Ground)cmd;
-            backend_draw_ground(ground_command.worldConfig);
+            if in_gbuffer_pass {
+                backend_draw_ground_gbuf(ground_command.worldConfig);
+            } else {
+                backend_draw_ground(ground_command.worldConfig);
+            }
         case .UPDATE_TRIXELS;
             trixel_update_command := cast(*Render_Command_Update_Trixels)cmd;
             backend_update_trixels(trixel_update_command);
@@ -218,6 +222,27 @@ backend_draw_ground :: (wc: *World_Config) {
     sg_draw(0, 6, 2);    
 }
 
+backend_draw_ground_gbuf :: (wc: *World_Config) {
+    mvp := create_viewproj(*camera);
+    view := create_lookat(*camera);
+    vs_params : Gbuffer_Vs_Params;
+    vs_params.mvp = mvp.floats;
+    vs_params.view_matrix = view.floats;
+    vs_params.isGround = 1;
+    vs_params.planeHeight = wc.planeHeight;
+    sg_apply_pipeline(gPipelines.gbuffer.pipeline);
+
+    bindings : sg_bindings;
+    bindings.vertex_buffers[0]         = g_plane_gbuffer_vertex_buffer;
+    bindings.vertex_buffers[1]         = g_plane_gbuffer_normal_buffer;
+    bindings.vertex_buffers[2]         = g_plane_gbuffer_center_buffer;
+    bindings.vertex_buffers[3]         = g_plane_gbuffer_instance_buffer;
+
+    sg_apply_bindings(*bindings);
+    sg_apply_uniforms(UB_gbuffer_vs_params, *(sg_range.{ ptr = *vs_params, size = size_of(type_of(vs_params))}));
+    sg_draw(0, 6, 1);
+}
+
 backend_process_command_buckets :: () {
     // 1. Set up textures and buffers.
     for render_command_buckets.setup {
@@ -248,7 +273,7 @@ backend_process_command_buckets :: () {
     
     // 4. G-Buffer pass
     in_gbuffer_pass = true;
-    sg_begin_pass(*(sg_pass.{ action = state.pass_action_clear, attachments = g_gbuf_attachments}));
+    sg_begin_pass(*(sg_pass.{ action = state.pass_action_clear_gbuf, attachments = g_gbuf_attachments}));
     for render_command_buckets.gbuffer {
         backend_handle_command(it);
     }
@@ -271,9 +296,15 @@ backend_process_command_buckets :: () {
     sg_draw(0, 6, 1);    
     sg_end_pass();
 
+    
+
     sg_begin_pass(*(sg_pass.{ action = state.pass_action_clear, attachments = g_ssao_attachments }));
     sg_apply_pipeline(gPipelines.op.pipeline);
+    op_uniform : Op_Fs_Params;
+    op_uniform.blur_size = 1;
+    op_uniform.op = 0;
     gPipelines.op.bind.images[0] = g_postprocess_a;
+    sg_apply_uniforms(UB_op_fs_params, *(sg_range.{ ptr = *op_uniform, size = size_of(type_of(op_uniform)) }));
     sg_apply_bindings(*gPipelines.op.bind);
     sg_draw(0, 6, 1);    
     sg_end_pass();
@@ -286,13 +317,14 @@ backend_process_command_buckets :: () {
 	sg_end_pass();
     current_trile_offset_index = 0; // This is not optimal, but it is nice and simple.
 
+    dof_process();
    
     // Begin drawing to swapchain
     sg_begin_pass(*(sg_pass.{ action = state.pass_action_clear, swapchain = cast,force(sg_swapchain) sglue_swapchain() }));
     
     // Draw the render texture and do post processing:
     sg_apply_pipeline(gPipelines.postprocess.pipeline);
-    gPipelines.postprocess.bind.images[0] = g_rendertex;
+    gPipelines.postprocess.bind.images[0] = g_postprocess_a;
     sg_apply_bindings(*gPipelines.postprocess.bind);
     post_process_config_uniform : Post_Process_Config;
     fill_uniform_with_engine_data(*post_process_config_uniform , *current_post_process);
diff --git a/src/rendering/backend_sokol_helpers.jai b/src/rendering/backend_sokol_helpers.jai
new file mode 100644
index 0000000..cd07955
--- /dev/null
+++ b/src/rendering/backend_sokol_helpers.jai
@@ -0,0 +1,42 @@
+dof_process :: () {
+    sg_begin_pass(*(sg_pass.{ action = state.pass_action_clear, attachments = g_postprocess_attach_a }));
+    sg_apply_pipeline(gPipelines.op.pipeline);
+    op_uniform_dilate : Op_Fs_Params;
+    op_uniform_dilate.blur_size = current_post_process.dof_blur_size;
+    op_uniform_dilate.op=2;
+    gPipelines.op.bind.images[0] = g_rendertex;
+    sg_apply_uniforms(UB_op_fs_params, *(sg_range.{ ptr = *op_uniform_dilate, size = size_of(type_of(op_uniform_dilate)) }));
+    sg_apply_bindings(*gPipelines.op.bind);
+    sg_draw(0, 6, 1);    
+    sg_end_pass();
+
+    sg_begin_pass(*(sg_pass.{ action = state.pass_action_clear, attachments = g_postprocess_attach_b }));
+    sg_apply_pipeline(gPipelines.op.pipeline);
+    op_uniform_dof_blur : Op_Fs_Params;
+    op_uniform_dof_blur.blur_size = current_post_process.dilate_size;
+    op_uniform_dof_blur.separation = current_post_process.dilate_separation;
+    op_uniform_dof_blur.dilate_min = current_post_process.dilate_min;
+    op_uniform_dof_blur.dilate_max = current_post_process.dilate_max;
+    op_uniform_dof_blur.op=1;
+    gPipelines.op.bind.images[0] = g_postprocess_a;
+    sg_apply_uniforms(UB_op_fs_params, *(sg_range.{ ptr = *op_uniform_dof_blur, size = size_of(type_of(op_uniform_dof_blur)) }));
+    sg_apply_bindings(*gPipelines.op.bind);
+    sg_draw(0, 6, 1);    
+    sg_end_pass();
+
+    sg_begin_pass(*(sg_pass.{ action = state.pass_action_clear, attachments = g_postprocess_attach_a }));
+    sg_apply_pipeline(gPipelines.mix.pipeline);
+    mix_uniform : Mix_Fs_Params;
+    mix_uniform.op = 0;
+    mix_uniform.dof_min = current_post_process.dof_min;
+    mix_uniform.dof_max = current_post_process.dof_max;
+    mix_uniform.dof_point = current_post_process.dof_point;
+    gPipelines.mix.bind.images[0] = g_postprocess_b;
+    gPipelines.mix.bind.images[1] = g_rendertex;
+    gPipelines.mix.bind.images[2] = g_gbuf_position;
+    sg_apply_uniforms(UB_op_fs_params, *(sg_range.{ ptr = *mix_uniform, size = size_of(type_of(mix_uniform)) }));
+    sg_apply_bindings(*gPipelines.mix.bind);
+    sg_draw(0, 6, 1);    
+    sg_end_pass();
+}
+
diff --git a/src/rendering/pipelines.jai b/src/rendering/pipelines.jai
index 4093287..ca6aa78 100644
--- a/src/rendering/pipelines.jai
+++ b/src/rendering/pipelines.jai
@@ -61,6 +61,8 @@ gPipelines : struct {
     postprocess : Pipeline_Binding;
 
     op : Pipeline_Binding;
+    
+    mix : Pipeline_Binding;
 
     // Renders the SSAO texture using things from the gbuffer pass.
     ssao: Pipeline_Binding;
@@ -136,10 +138,12 @@ create_pipelines :: () {
     create_postprocess_pipeline();
     create_ssao_pipeline();
     create_op_pipeline();
+    create_mix_pipeline();
     
     create_shadowmap_image();
     create_final_image();
     create_ssao_images();
+    create_gbuffer_impostors();
 }
 
 create_gbuffer_images :: () {
@@ -469,7 +473,6 @@ create_sky_pipeline :: () {
     gPipelines.sky.bind.vertex_buffers[0] = sg_make_buffer(*vbuffer);
 }
 
-// @ToDo: This needs to be redone when the window is resized;
 create_plane_pipeline_reflection_images :: () {
     binding := *gPipelines.plane.bind;
     if binding.images[4].id != INVALID_ID then sg_destroy_image(binding.images[4]);
@@ -689,6 +692,7 @@ create_postprocess_pipeline :: () {
 
 }
 
+// Takes in a texture, manipulates it and outputs it.
 create_op_pipeline :: () {
     platconf := get_plat_conf();
     pipeline: sg_pipeline_desc;
@@ -749,6 +753,67 @@ create_op_pipeline :: () {
 
 }
 
+// Takes in 2-3 textures, and mixes them.
+create_mix_pipeline :: () {
+    platconf := get_plat_conf();
+    pipeline: sg_pipeline_desc;
+    shader_desc := mix_shader_desc(sg_query_backend());
+    pipeline.shader = sg_make_shader(*shader_desc);
+
+    pipeline.layout.attrs[ATTR_mix_position] = .{ format = .FLOAT2 };
+    pipeline.layout.attrs[ATTR_mix_uv]       = .{ format = .FLOAT2 };
+    pipeline.index_type = .UINT16;
+
+    color_state := sg_color_target_state.{
+        blend = .{
+            enabled = true,
+            src_factor_rgb = .SRC_ALPHA,
+            dst_factor_rgb = .ONE_MINUS_SRC_ALPHA
+        }
+    };
+    pipeline.depth = .{
+            write_enabled = true,
+            compare = .LESS_EQUAL,
+            pixel_format = .DEPTH
+    };
+
+    pipeline.color_count = 1;
+    pipeline.colors[0] = color_state;
+
+    gPipelines.mix.pipeline = sg_make_pipeline(*pipeline);
+
+    quad_vertices : [16]float = .[
+        -1.0,  1.0, 0.0, flip_if_plat(1.0), // top-let
+        -1.0, -1.0, 0.0, flip_if_plat(0.0), // bottom-let
+         1.0, -1.0, 1.0, flip_if_plat(0.0), // bottom-right
+         1.0,  1.0, 1.0, flip_if_plat(1.0), // top-right
+    ];
+    quad_indices  : [6]u16 = .[
+        0, 1, 2, 0, 2, 3
+    ];
+
+    vbuffer := sg_buffer_desc.{ size = size_of(float) * 16, data = .{
+        ptr = quad_vertices.data,
+        size = 16 * 4
+    }};
+    ibuffer := sg_buffer_desc.{ size = size_of(u16) * 6, data = .{
+        ptr = quad_indices.data,
+        size = 6 * 2
+    },
+    type = .INDEXBUFFER,
+    };
+
+    gPipelines.mix.bind.vertex_buffers[0] = sg_make_buffer(*vbuffer);
+    gPipelines.mix.bind.index_buffer = sg_make_buffer(*ibuffer);
+    gPipelines.mix.bind.samplers[0] = sg_make_sampler(*(sg_sampler_desc.{
+        wrap_u = .CLAMP_TO_EDGE,
+        wrap_v = .CLAMP_TO_EDGE,
+        min_filter = .NEAREST,
+        mag_filter = .NEAREST,
+    }));
+
+}
+
 create_ssao_images :: () {
     if g_ssaobuf.id != INVALID_ID then sg_destroy_image(g_ssaobuf);
     if g_ssaobuf_depth.id != INVALID_ID then sg_destroy_image(g_ssaobuf_depth);
@@ -874,3 +939,56 @@ create_ssao_pipeline :: () {
 init_plane_textures :: () {
     gPipelines.plane.bind.images[3] = create_texture_from_pack("./resources/utiltex/water.png");
 }
+
+g_plane_gbuffer_vertex_buffer : sg_buffer;
+g_plane_gbuffer_normal_buffer : sg_buffer;
+g_plane_gbuffer_center_buffer : sg_buffer;
+g_plane_gbuffer_instance_buffer : sg_buffer;
+
+create_gbuffer_impostors :: () {
+    plane_vertices: [6]Vector3 = .[
+        .{-1.0, 0.0, -1.0},
+        .{ 1.0, 0.0, -1.0},
+        .{ 1.0, 0.0,  1.0},
+        .{-1.0, 0.0, -1.0},
+        .{ 1.0, 0.0,  1.0},
+        .{-1.0, 0.0,  1.0},
+    ];
+    vbuffer := sg_buffer_desc.{ size = size_of(float) * 18, data = .{
+        ptr = plane_vertices.data,
+        size = 6 * 3 * 4
+    }};
+    g_plane_gbuffer_vertex_buffer = sg_make_buffer(*vbuffer);
+    
+    plane_normals: [6]Vector3 = .[
+        .{0.0, 1.0, 0.0},
+        .{0.0, 1.0, 0.0},
+        .{0.0, 1.0, 0.0},
+        .{0.0, 1.0, 0.0},
+        .{0.0, 1.0, 0.0},
+        .{0.0, 1.0, 0.0},
+    ];
+    nbuffer := sg_buffer_desc.{ size = size_of(float) * 18, data = .{
+        ptr = plane_normals.data,
+        size = 6 * 3 * 4
+    }};
+    g_plane_gbuffer_normal_buffer = sg_make_buffer(*nbuffer);
+    
+    plane_centers: [2]Vector3 = .[ // these are useless, just to fill the pipeline requirement.
+        .{0.0, 1.0, 0.0},
+        .{0.0, 1.0, 0.0},
+    ];
+    cbuffer := sg_buffer_desc.{ size = size_of(float) * 6, data = .{
+        ptr = plane_centers.data,
+        size = 3 * 2 * 4
+    }};
+    g_plane_gbuffer_center_buffer = sg_make_buffer(*cbuffer);
+
+    instances: [1]Vector4 = .[.{0,0,0,0}];
+    instance_buffer := sg_buffer_desc.{size = 4 * 4, data = .{
+        ptr = instances.data,
+        size = 4*4,
+    }};
+    g_plane_gbuffer_instance_buffer = sg_make_buffer(*instance_buffer);
+
+}
diff --git a/src/rendering/post_processing.jai b/src/rendering/post_processing.jai
index 7d668f9..b28af5a 100644
--- a/src/rendering/post_processing.jai
+++ b/src/rendering/post_processing.jai
@@ -1,10 +1,18 @@
 Post_Process :: struct {
-    exposure   : float = 0.0; @Slider,-1,1,0.1;
-    contrast   : float = 1.0; @Slider,0.1,4.0,0.1;
-    saturation : float = 1.0; @Slider,0.0,2.0,0.1;
-    gamma      : float = 1.0; @Slider,0.3,3.0,0.1;
-    tonemap    : float = 1.0; @Slider,0,1,1;
-    ssao       : float = 1.0; @Slider,0,5,0.1;
+    exposure          : float = 0.0; @Slider,-1,1,0.1;
+    contrast          : float = 1.0; @Slider,0.1,4.0,0.1;
+    saturation        : float = 1.0; @Slider,0.0,2.0,0.1;
+    gamma             : float = 1.0; @Slider,0.3,3.0,0.1;
+    tonemap           : float = 1.0; @Slider,0,1,1;
+    ssao              : float = 1.0; @Slider,0,5,0.1;
+    dilate_separation : float = 1.0; @Slider,0,6,0.1;
+    dilate_size       : s32   = 2;   @Slider,0,10,1;
+    dilate_min        : float = 0.1; @Slider,0,1,0.1;
+    dilate_max        : float = 0.3; @Slider,0,1,0.1;
+    dof_blur_size     : s32   = 2;   @Slider,0,10,1;
+    dof_min           : float = 1.0; @Slider,0,10,1;
+    dof_max           : float = 3.0; @Slider,0,20,1;
+    dof_point         : float = 5.0; @Slider,0,30,1;
 }
 
 current_post_process : Post_Process;
diff --git a/src/rendering/rendering.jai b/src/rendering/rendering.jai
index c0bf432..509b938 100644
--- a/src/rendering/rendering.jai
+++ b/src/rendering/rendering.jai
@@ -17,6 +17,7 @@
 #load "helpers.jai";
 #load "pipelines.jai";
 #load "post_processing.jai";
+#load "backend_sokol_helpers.jai";
 
 #scope_file
 
diff --git a/src/rendering/tasks.jai b/src/rendering/tasks.jai
index 08b89b8..ef8e7d3 100644
--- a/src/rendering/tasks.jai
+++ b/src/rendering/tasks.jai
@@ -115,8 +115,8 @@ tasks_to_commands :: () {
                 commandDrawGround.worldConfig = *(cast(*Rendering_Task_Ground)it).world.conf;
                 commandGenGround := New(Render_Command_Generate_Ground_Texture,, temp);
                 commandGenGround.world = (cast(*Rendering_Task_Ground)it).world;
-                array_add(*render_command_buckets.setup, commandGenGround);
                 array_add(*render_command_buckets.main, commandDrawGround);
+                array_add(*render_command_buckets.gbuffer, commandDrawGround);
             case .SET_CAMERA;
                 task := (cast(*Rendering_Task_Set_Camera)it);
                 command := New(Render_Command_Set_Camera,, temp);
diff --git a/src/shaders/jai/shader_gbuffer.jai b/src/shaders/jai/shader_gbuffer.jai
index d325169..a563be6 100644
--- a/src/shaders/jai/shader_gbuffer.jai
+++ b/src/shaders/jai/shader_gbuffer.jai
@@ -30,74 +30,116 @@ UB_gbuffer_vs_params :: 0;
 Gbuffer_Vs_Params :: struct {
     mvp: [16]float;
     view_matrix: [16]float;
+    isGround: s32;
+    planeHeight: float;
+    _: [8]u8;
 };
 /*
     #version 430
 
-    uniform vec4 gbuffer_vs_params[8];
+    struct gbuffer_vs_params
+    {
+        mat4 mvp;
+        mat4 view_matrix;
+        int isGround;
+        float planeHeight;
+    };
+
+    uniform gbuffer_vs_params _12;
+
     layout(location = 0) in vec4 position;
-    layout(location = 3) in vec4 instance;
     layout(location = 0) out vec3 view_space_pos;
     layout(location = 1) out vec3 view_space_normal;
     layout(location = 1) in vec4 normal;
+    layout(location = 3) in vec4 instance;
     layout(location = 2) in vec4 centre;
 
     void main()
     {
-        vec4 _23 = vec4(position.xyz + instance.xyz, 1.0);
-        mat4 _33 = mat4(gbuffer_vs_params[4], gbuffer_vs_params[5], gbuffer_vs_params[6], gbuffer_vs_params[7]);
-        gl_Position = mat4(gbuffer_vs_params[0], gbuffer_vs_params[1], gbuffer_vs_params[2], gbuffer_vs_params[3]) * _23;
-        view_space_pos = (_33 * _23).xyz;
-        view_space_normal = mat3(_33[0].xyz, _33[1].xyz, _33[2].xyz) * normal.xyz;
+        if (_12.isGround == 1)
+        {
+            vec4 _42 = vec4(position.x * 100.0, _12.planeHeight, position.z * 100.0, 1.0);
+            gl_Position = _12.mvp * _42;
+            view_space_pos = (_12.view_matrix * _42).xyz;
+            view_space_normal = mat3(_12.view_matrix[0].xyz, _12.view_matrix[1].xyz, _12.view_matrix[2].xyz) * normal.xyz;
+        }
+        else
+        {
+            vec4 _92 = vec4(position.xyz + instance.xyz, 1.0);
+            gl_Position = _12.mvp * _92;
+            view_space_pos = (_12.view_matrix * _92).xyz;
+            view_space_normal = mat3(_12.view_matrix[0].xyz, _12.view_matrix[1].xyz, _12.view_matrix[2].xyz) * normal.xyz;
+        }
     }
 
 */
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+    0x7d,0x0a,0x7d,0x0a,0x0a,0x00,
 ];
 /*
     #version 430
@@ -139,68 +181,106 @@ fs_g_source_glsl430 := u8.[
 /*
     #version 300 es
 
-    uniform vec4 gbuffer_vs_params[8];
+    struct gbuffer_vs_params
+    {
+        mat4 mvp;
+        mat4 view_matrix;
+        int isGround;
+        float planeHeight;
+    };
+
+    uniform gbuffer_vs_params _12;
+
     layout(location = 0) in vec4 position;
-    layout(location = 3) in vec4 instance;
     out vec3 view_space_pos;
     out vec3 view_space_normal;
     layout(location = 1) in vec4 normal;
+    layout(location = 3) in vec4 instance;
     layout(location = 2) in vec4 centre;
 
     void main()
     {
-        vec4 _23 = vec4(position.xyz + instance.xyz, 1.0);
-        mat4 _33 = mat4(gbuffer_vs_params[4], gbuffer_vs_params[5], gbuffer_vs_params[6], gbuffer_vs_params[7]);
-        gl_Position = mat4(gbuffer_vs_params[0], gbuffer_vs_params[1], gbuffer_vs_params[2], gbuffer_vs_params[3]) * _23;
-        view_space_pos = (_33 * _23).xyz;
-        view_space_normal = mat3(_33[0].xyz, _33[1].xyz, _33[2].xyz) * normal.xyz;
+        if (_12.isGround == 1)
+        {
+            vec4 _42 = vec4(position.x * 100.0, _12.planeHeight, position.z * 100.0, 1.0);
+            gl_Position = _12.mvp * _42;
+            view_space_pos = (_12.view_matrix * _42).xyz;
+            view_space_normal = mat3(_12.view_matrix[0].xyz, _12.view_matrix[1].xyz, _12.view_matrix[2].xyz) * normal.xyz;
+        }
+        else
+        {
+            vec4 _92 = vec4(position.xyz + instance.xyz, 1.0);
+            gl_Position = _12.mvp * _92;
+            view_space_pos = (_12.view_matrix * _92).xyz;
+            view_space_normal = mat3(_12.view_matrix[0].xyz, _12.view_matrix[1].xyz, _12.view_matrix[2].xyz) * normal.xyz;
+        }
     }
 
 */
 vs_g_source_glsl300es := u8.[
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 ];
 /*
     #version 300 es
@@ -253,6 +333,8 @@ fs_g_source_glsl300es := u8.[
     {
         float4x4 mvp;
         float4x4 view_matrix;
+        int isGround;
+        float planeHeight;
     };
 
     struct main0_out
@@ -269,13 +351,23 @@ fs_g_source_glsl300es := u8.[
         float4 instance [[attribute(3)]];
     };
 
-    vertex main0_out main0(main0_in in [[stage_in]], constant gbuffer_vs_params& _28 [[buffer(0)]])
+    vertex main0_out main0(main0_in in [[stage_in]], constant gbuffer_vs_params& _12 [[buffer(0)]])
     {
         main0_out out = {};
-        float4 _23 = float4(in.position.xyz + in.instance.xyz, 1.0);
-        out.gl_Position = _28.mvp * _23;
-        out.view_space_pos = (_28.view_matrix * _23).xyz;
-        out.view_space_normal = float3x3(_28.view_matrix[0].xyz, _28.view_matrix[1].xyz, _28.view_matrix[2].xyz) * in.normal.xyz;
+        if (_12.isGround == 1)
+        {
+            float4 _42 = float4(in.position.x * 100.0, _12.planeHeight, in.position.z * 100.0, 1.0);
+            out.gl_Position = _12.mvp * _42;
+            out.view_space_pos = (_12.view_matrix * _42).xyz;
+            out.view_space_normal = float3x3(_12.view_matrix[0].xyz, _12.view_matrix[1].xyz, _12.view_matrix[2].xyz) * in.normal.xyz;
+        }
+        else
+        {
+            float4 _92 = float4(in.position.xyz + in.instance.xyz, 1.0);
+            out.gl_Position = _12.mvp * _92;
+            out.view_space_pos = (_12.view_matrix * _92).xyz;
+            out.view_space_normal = float3x3(_12.view_matrix[0].xyz, _12.view_matrix[1].xyz, _12.view_matrix[2].xyz) * in.normal.xyz;
+        }
         return out;
     }
 
@@ -289,52 +381,80 @@ vs_g_source_metal_macos := u8.[
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+    0x00,
 ];
 /*
     #include <metal_stdlib>
@@ -416,10 +536,19 @@ gbuffer_shader_desc :: (backend: sg_backend) -> sg_shader_desc {
         desc.attrs[3].glsl_name = "instance";
         desc.uniform_blocks[0].stage = .VERTEX;
         desc.uniform_blocks[0].layout = .STD140;
-        desc.uniform_blocks[0].size = 128;
-        desc.uniform_blocks[0].glsl_uniforms[0].type = .FLOAT4;
-        desc.uniform_blocks[0].glsl_uniforms[0].array_count = 8;
-        desc.uniform_blocks[0].glsl_uniforms[0].glsl_name = "gbuffer_vs_params";
+        desc.uniform_blocks[0].size = 144;
+        desc.uniform_blocks[0].glsl_uniforms[0].type = .MAT4;
+        desc.uniform_blocks[0].glsl_uniforms[0].array_count = 0;
+        desc.uniform_blocks[0].glsl_uniforms[0].glsl_name = "_12.mvp";
+        desc.uniform_blocks[0].glsl_uniforms[1].type = .MAT4;
+        desc.uniform_blocks[0].glsl_uniforms[1].array_count = 0;
+        desc.uniform_blocks[0].glsl_uniforms[1].glsl_name = "_12.view_matrix";
+        desc.uniform_blocks[0].glsl_uniforms[2].type = .INT;
+        desc.uniform_blocks[0].glsl_uniforms[2].array_count = 0;
+        desc.uniform_blocks[0].glsl_uniforms[2].glsl_name = "_12.isGround";
+        desc.uniform_blocks[0].glsl_uniforms[3].type = .FLOAT;
+        desc.uniform_blocks[0].glsl_uniforms[3].array_count = 0;
+        desc.uniform_blocks[0].glsl_uniforms[3].glsl_name = "_12.planeHeight";
     case .GLES3;
         desc.vertex_func.source = xx *vs_g_source_glsl300es;
         desc.vertex_func.entry = "main";
@@ -435,10 +564,19 @@ gbuffer_shader_desc :: (backend: sg_backend) -> sg_shader_desc {
         desc.attrs[3].glsl_name = "instance";
         desc.uniform_blocks[0].stage = .VERTEX;
         desc.uniform_blocks[0].layout = .STD140;
-        desc.uniform_blocks[0].size = 128;
-        desc.uniform_blocks[0].glsl_uniforms[0].type = .FLOAT4;
-        desc.uniform_blocks[0].glsl_uniforms[0].array_count = 8;
-        desc.uniform_blocks[0].glsl_uniforms[0].glsl_name = "gbuffer_vs_params";
+        desc.uniform_blocks[0].size = 144;
+        desc.uniform_blocks[0].glsl_uniforms[0].type = .MAT4;
+        desc.uniform_blocks[0].glsl_uniforms[0].array_count = 0;
+        desc.uniform_blocks[0].glsl_uniforms[0].glsl_name = "_12.mvp";
+        desc.uniform_blocks[0].glsl_uniforms[1].type = .MAT4;
+        desc.uniform_blocks[0].glsl_uniforms[1].array_count = 0;
+        desc.uniform_blocks[0].glsl_uniforms[1].glsl_name = "_12.view_matrix";
+        desc.uniform_blocks[0].glsl_uniforms[2].type = .INT;
+        desc.uniform_blocks[0].glsl_uniforms[2].array_count = 0;
+        desc.uniform_blocks[0].glsl_uniforms[2].glsl_name = "_12.isGround";
+        desc.uniform_blocks[0].glsl_uniforms[3].type = .FLOAT;
+        desc.uniform_blocks[0].glsl_uniforms[3].array_count = 0;
+        desc.uniform_blocks[0].glsl_uniforms[3].glsl_name = "_12.planeHeight";
     case .METAL_MACOS;
         desc.vertex_func.source = xx *vs_g_source_metal_macos;
         desc.vertex_func.entry = "main0";
@@ -450,7 +588,7 @@ gbuffer_shader_desc :: (backend: sg_backend) -> sg_shader_desc {
         desc.attrs[3].base_type = .FLOAT;
         desc.uniform_blocks[0].stage = .VERTEX;
         desc.uniform_blocks[0].layout = .STD140;
-        desc.uniform_blocks[0].size = 128;
+        desc.uniform_blocks[0].size = 144;
         desc.uniform_blocks[0].msl_buffer_n = 0;
     }
     return desc;
diff --git a/src/shaders/jai/shader_mix.jai b/src/shaders/jai/shader_mix.jai
new file mode 100644
index 0000000..c1dec2b
--- /dev/null
+++ b/src/shaders/jai/shader_mix.jai
@@ -0,0 +1,574 @@
+/*
+    #version:1# (machine generated, don't edit!)
+
+    Generated by sokol-shdc (https://github.com/floooh/sokol-tools)
+
+    Cmdline:
+        sokol-shdc -i shader_mix.glsl -o ./jai/shader_mix.jai -l glsl430:glsl300es:metal_macos -f sokol_jai
+
+    Overview:
+    =========
+    Shader program: 'mix':
+        Get shader desc: mix_shader_desc(sg_query_backend())
+        Vertex Shader: vs_mix
+        Fragment Shader: fs_mix
+        Attributes:
+            ATTR_mix_position => 0
+            ATTR_mix_uv => 1
+    Bindings:
+        Uniform block 'mix_fs_params':
+            Jai struct: Mix_Fs_Params
+            Bind slot: UB_mix_fs_params => 1
+        Image 'mixtex_a':
+            Image type: ._2D
+            Sample type: .FLOAT
+            Multisampled: false
+            Bind slot: IMG_mixtex_a => 0
+        Image 'mixtex_b':
+            Image type: ._2D
+            Sample type: .FLOAT
+            Multisampled: false
+            Bind slot: IMG_mixtex_b => 1
+        Image 'mixtex_c':
+            Image type: ._2D
+            Sample type: .FLOAT
+            Multisampled: false
+            Bind slot: IMG_mixtex_c => 2
+        Sampler 'mixsmp':
+            Type: .FILTERING
+            Bind slot: SMP_mixsmp => 0
+*/
+ATTR_mix_position :: 0;
+ATTR_mix_uv :: 1;
+UB_mix_fs_params :: 1;
+IMG_mixtex_a :: 0;
+IMG_mixtex_b :: 1;
+IMG_mixtex_c :: 2;
+SMP_mixsmp :: 0;
+Mix_Fs_Params :: struct {
+    op: s32;
+    dof_min: float;
+    dof_max: float;
+    dof_point: float;
+};
+/*
+    #version 430
+
+    layout(location = 0) in vec2 position;
+    layout(location = 0) out vec2 texcoord;
+    layout(location = 1) in vec2 uv;
+
+    void main()
+    {
+        gl_Position = vec4(position, 0.5, 1.0);
+        texcoord = uv;
+    }
+
+*/
+vs_mix_source_glsl430 := u8.[
+    0x23,0x76,0x65,0x72,0x73,0x69,0x6f,0x6e,0x20,0x34,0x33,0x30,0x0a,0x0a,0x6c,0x61,
+    0x79,0x6f,0x75,0x74,0x28,0x6c,0x6f,0x63,0x61,0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,
+    0x30,0x29,0x20,0x69,0x6e,0x20,0x76,0x65,0x63,0x32,0x20,0x70,0x6f,0x73,0x69,0x74,
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+    0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,0x30,0x29,0x20,0x6f,0x75,0x74,0x20,0x76,0x65,
+    0x63,0x32,0x20,0x74,0x65,0x78,0x63,0x6f,0x6f,0x72,0x64,0x3b,0x0a,0x6c,0x61,0x79,
+    0x6f,0x75,0x74,0x28,0x6c,0x6f,0x63,0x61,0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,0x31,
+    0x29,0x20,0x69,0x6e,0x20,0x76,0x65,0x63,0x32,0x20,0x75,0x76,0x3b,0x0a,0x0a,0x76,
+    0x6f,0x69,0x64,0x20,0x6d,0x61,0x69,0x6e,0x28,0x29,0x0a,0x7b,0x0a,0x20,0x20,0x20,
+    0x20,0x67,0x6c,0x5f,0x50,0x6f,0x73,0x69,0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,0x76,
+    0x65,0x63,0x34,0x28,0x70,0x6f,0x73,0x69,0x74,0x69,0x6f,0x6e,0x2c,0x20,0x30,0x2e,
+    0x35,0x2c,0x20,0x31,0x2e,0x30,0x29,0x3b,0x0a,0x20,0x20,0x20,0x20,0x74,0x65,0x78,
+    0x63,0x6f,0x6f,0x72,0x64,0x20,0x3d,0x20,0x75,0x76,0x3b,0x0a,0x7d,0x0a,0x0a,0x00,
+
+];
+/*
+    #version 430
+
+    struct mix_fs_params
+    {
+        int op;
+        float dof_min;
+        float dof_max;
+        float dof_point;
+    };
+
+    uniform mix_fs_params _10;
+
+    layout(binding = 16) uniform sampler2D mixtex_b_mixsmp;
+    layout(binding = 17) uniform sampler2D mixtex_a_mixsmp;
+    layout(binding = 18) uniform sampler2D mixtex_c_mixsmp;
+
+    layout(location = 0) in vec2 texcoord;
+    layout(location = 0) out vec4 frag_color;
+
+    void main()
+    {
+        if (_10.op == 0)
+        {
+            frag_color = vec4(mix(texture(mixtex_b_mixsmp, texcoord).xyz, texture(mixtex_a_mixsmp, texcoord).xyz, vec3(smoothstep(_10.dof_min, _10.dof_max, abs(texture(mixtex_c_mixsmp, texcoord).z + _10.dof_point)))), 1.0);
+        }
+        else
+        {
+            frag_color = vec4(1.0);
+        }
+    }
+
+*/
+fs_mix_source_glsl430 := u8.[
+    0x23,0x76,0x65,0x72,0x73,0x69,0x6f,0x6e,0x20,0x34,0x33,0x30,0x0a,0x0a,0x73,0x74,
+    0x72,0x75,0x63,0x74,0x20,0x6d,0x69,0x78,0x5f,0x66,0x73,0x5f,0x70,0x61,0x72,0x61,
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+    0x29,0x29,0x29,0x29,0x2c,0x20,0x31,0x2e,0x30,0x29,0x3b,0x0a,0x20,0x20,0x20,0x20,
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+    0x0a,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x66,0x72,0x61,0x67,0x5f,0x63,0x6f,
+    0x6c,0x6f,0x72,0x20,0x3d,0x20,0x76,0x65,0x63,0x34,0x28,0x31,0x2e,0x30,0x29,0x3b,
+    0x0a,0x20,0x20,0x20,0x20,0x7d,0x0a,0x7d,0x0a,0x0a,0x00,
+];
+/*
+    #version 300 es
+
+    layout(location = 0) in vec2 position;
+    out vec2 texcoord;
+    layout(location = 1) in vec2 uv;
+
+    void main()
+    {
+        gl_Position = vec4(position, 0.5, 1.0);
+        texcoord = uv;
+    }
+
+*/
+vs_mix_source_glsl300es := u8.[
+    0x23,0x76,0x65,0x72,0x73,0x69,0x6f,0x6e,0x20,0x33,0x30,0x30,0x20,0x65,0x73,0x0a,
+    0x0a,0x6c,0x61,0x79,0x6f,0x75,0x74,0x28,0x6c,0x6f,0x63,0x61,0x74,0x69,0x6f,0x6e,
+    0x20,0x3d,0x20,0x30,0x29,0x20,0x69,0x6e,0x20,0x76,0x65,0x63,0x32,0x20,0x70,0x6f,
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+    0x20,0x74,0x65,0x78,0x63,0x6f,0x6f,0x72,0x64,0x3b,0x0a,0x6c,0x61,0x79,0x6f,0x75,
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+    0x69,0x6e,0x20,0x76,0x65,0x63,0x32,0x20,0x75,0x76,0x3b,0x0a,0x0a,0x76,0x6f,0x69,
+    0x64,0x20,0x6d,0x61,0x69,0x6e,0x28,0x29,0x0a,0x7b,0x0a,0x20,0x20,0x20,0x20,0x67,
+    0x6c,0x5f,0x50,0x6f,0x73,0x69,0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,0x76,0x65,0x63,
+    0x34,0x28,0x70,0x6f,0x73,0x69,0x74,0x69,0x6f,0x6e,0x2c,0x20,0x30,0x2e,0x35,0x2c,
+    0x20,0x31,0x2e,0x30,0x29,0x3b,0x0a,0x20,0x20,0x20,0x20,0x74,0x65,0x78,0x63,0x6f,
+    0x6f,0x72,0x64,0x20,0x3d,0x20,0x75,0x76,0x3b,0x0a,0x7d,0x0a,0x0a,0x00,
+];
+/*
+    #version 300 es
+    precision mediump float;
+    precision highp int;
+
+    struct mix_fs_params
+    {
+        int op;
+        highp float dof_min;
+        highp float dof_max;
+        highp float dof_point;
+    };
+
+    uniform mix_fs_params _10;
+
+    uniform highp sampler2D mixtex_b_mixsmp;
+    uniform highp sampler2D mixtex_a_mixsmp;
+    uniform highp sampler2D mixtex_c_mixsmp;
+
+    in highp vec2 texcoord;
+    layout(location = 0) out highp vec4 frag_color;
+
+    void main()
+    {
+        if (_10.op == 0)
+        {
+            frag_color = vec4(mix(texture(mixtex_b_mixsmp, texcoord).xyz, texture(mixtex_a_mixsmp, texcoord).xyz, vec3(smoothstep(_10.dof_min, _10.dof_max, abs(texture(mixtex_c_mixsmp, texcoord).z + _10.dof_point)))), 1.0);
+        }
+        else
+        {
+            frag_color = vec4(1.0);
+        }
+    }
+
+*/
+fs_mix_source_glsl300es := u8.[
+    0x23,0x76,0x65,0x72,0x73,0x69,0x6f,0x6e,0x20,0x33,0x30,0x30,0x20,0x65,0x73,0x0a,
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+    0x20,0x20,0x20,0x20,0x20,0x20,0x66,0x72,0x61,0x67,0x5f,0x63,0x6f,0x6c,0x6f,0x72,
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+    0x20,0x20,0x7d,0x0a,0x7d,0x0a,0x0a,0x00,
+];
+/*
+    #include <metal_stdlib>
+    #include <simd/simd.h>
+
+    using namespace metal;
+
+    struct main0_out
+    {
+        float2 texcoord [[user(locn0)]];
+        float4 gl_Position [[position]];
+    };
+
+    struct main0_in
+    {
+        float2 position [[attribute(0)]];
+        float2 uv [[attribute(1)]];
+    };
+
+    vertex main0_out main0(main0_in in [[stage_in]])
+    {
+        main0_out out = {};
+        out.gl_Position = float4(in.position, 0.5, 1.0);
+        out.texcoord = in.uv;
+        return out;
+    }
+
+*/
+vs_mix_source_metal_macos := u8.[
+    0x23,0x69,0x6e,0x63,0x6c,0x75,0x64,0x65,0x20,0x3c,0x6d,0x65,0x74,0x61,0x6c,0x5f,
+    0x73,0x74,0x64,0x6c,0x69,0x62,0x3e,0x0a,0x23,0x69,0x6e,0x63,0x6c,0x75,0x64,0x65,
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+    0x63,0x6f,0x6f,0x72,0x64,0x20,0x3d,0x20,0x69,0x6e,0x2e,0x75,0x76,0x3b,0x0a,0x20,
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+    0x0a,0x0a,0x00,
+];
+/*
+    #include <metal_stdlib>
+    #include <simd/simd.h>
+
+    using namespace metal;
+
+    struct mix_fs_params
+    {
+        int op;
+        float dof_min;
+        float dof_max;
+        float dof_point;
+    };
+
+    struct main0_out
+    {
+        float4 frag_color [[color(0)]];
+    };
+
+    struct main0_in
+    {
+        float2 texcoord [[user(locn0)]];
+    };
+
+    fragment main0_out main0(main0_in in [[stage_in]], constant mix_fs_params& _10 [[buffer(0)]], texture2d<float> mixtex_a [[texture(0)]], texture2d<float> mixtex_b [[texture(1)]], texture2d<float> mixtex_c [[texture(2)]], sampler mixsmp [[sampler(0)]])
+    {
+        main0_out out = {};
+        if (_10.op == 0)
+        {
+            out.frag_color = float4(mix(mixtex_b.sample(mixsmp, in.texcoord).xyz, mixtex_a.sample(mixsmp, in.texcoord).xyz, float3(smoothstep(_10.dof_min, _10.dof_max, abs(mixtex_c.sample(mixsmp, in.texcoord).z + _10.dof_point)))), 1.0);
+        }
+        else
+        {
+            out.frag_color = float4(1.0);
+        }
+        return out;
+    }
+
+*/
+fs_mix_source_metal_macos := u8.[
+    0x23,0x69,0x6e,0x63,0x6c,0x75,0x64,0x65,0x20,0x3c,0x6d,0x65,0x74,0x61,0x6c,0x5f,
+    0x73,0x74,0x64,0x6c,0x69,0x62,0x3e,0x0a,0x23,0x69,0x6e,0x63,0x6c,0x75,0x64,0x65,
+    0x20,0x3c,0x73,0x69,0x6d,0x64,0x2f,0x73,0x69,0x6d,0x64,0x2e,0x68,0x3e,0x0a,0x0a,
+    0x75,0x73,0x69,0x6e,0x67,0x20,0x6e,0x61,0x6d,0x65,0x73,0x70,0x61,0x63,0x65,0x20,
+    0x6d,0x65,0x74,0x61,0x6c,0x3b,0x0a,0x0a,0x73,0x74,0x72,0x75,0x63,0x74,0x20,0x6d,
+    0x69,0x78,0x5f,0x66,0x73,0x5f,0x70,0x61,0x72,0x61,0x6d,0x73,0x0a,0x7b,0x0a,0x20,
+    0x20,0x20,0x20,0x69,0x6e,0x74,0x20,0x6f,0x70,0x3b,0x0a,0x20,0x20,0x20,0x20,0x66,
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+    0x20,0x20,0x66,0x6c,0x6f,0x61,0x74,0x20,0x64,0x6f,0x66,0x5f,0x6d,0x61,0x78,0x3b,
+    0x0a,0x20,0x20,0x20,0x20,0x66,0x6c,0x6f,0x61,0x74,0x20,0x64,0x6f,0x66,0x5f,0x70,
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+    0x20,0x6d,0x61,0x69,0x6e,0x30,0x5f,0x6f,0x75,0x74,0x20,0x6f,0x75,0x74,0x20,0x3d,
+    0x20,0x7b,0x7d,0x3b,0x0a,0x20,0x20,0x20,0x20,0x69,0x66,0x20,0x28,0x5f,0x31,0x30,
+    0x2e,0x6f,0x70,0x20,0x3d,0x3d,0x20,0x30,0x29,0x0a,0x20,0x20,0x20,0x20,0x7b,0x0a,
+    0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x6f,0x75,0x74,0x2e,0x66,0x72,0x61,0x67,
+    0x5f,0x63,0x6f,0x6c,0x6f,0x72,0x20,0x3d,0x20,0x66,0x6c,0x6f,0x61,0x74,0x34,0x28,
+    0x6d,0x69,0x78,0x28,0x6d,0x69,0x78,0x74,0x65,0x78,0x5f,0x62,0x2e,0x73,0x61,0x6d,
+    0x70,0x6c,0x65,0x28,0x6d,0x69,0x78,0x73,0x6d,0x70,0x2c,0x20,0x69,0x6e,0x2e,0x74,
+    0x65,0x78,0x63,0x6f,0x6f,0x72,0x64,0x29,0x2e,0x78,0x79,0x7a,0x2c,0x20,0x6d,0x69,
+    0x78,0x74,0x65,0x78,0x5f,0x61,0x2e,0x73,0x61,0x6d,0x70,0x6c,0x65,0x28,0x6d,0x69,
+    0x78,0x73,0x6d,0x70,0x2c,0x20,0x69,0x6e,0x2e,0x74,0x65,0x78,0x63,0x6f,0x6f,0x72,
+    0x64,0x29,0x2e,0x78,0x79,0x7a,0x2c,0x20,0x66,0x6c,0x6f,0x61,0x74,0x33,0x28,0x73,
+    0x6d,0x6f,0x6f,0x74,0x68,0x73,0x74,0x65,0x70,0x28,0x5f,0x31,0x30,0x2e,0x64,0x6f,
+    0x66,0x5f,0x6d,0x69,0x6e,0x2c,0x20,0x5f,0x31,0x30,0x2e,0x64,0x6f,0x66,0x5f,0x6d,
+    0x61,0x78,0x2c,0x20,0x61,0x62,0x73,0x28,0x6d,0x69,0x78,0x74,0x65,0x78,0x5f,0x63,
+    0x2e,0x73,0x61,0x6d,0x70,0x6c,0x65,0x28,0x6d,0x69,0x78,0x73,0x6d,0x70,0x2c,0x20,
+    0x69,0x6e,0x2e,0x74,0x65,0x78,0x63,0x6f,0x6f,0x72,0x64,0x29,0x2e,0x7a,0x20,0x2b,
+    0x20,0x5f,0x31,0x30,0x2e,0x64,0x6f,0x66,0x5f,0x70,0x6f,0x69,0x6e,0x74,0x29,0x29,
+    0x29,0x29,0x2c,0x20,0x31,0x2e,0x30,0x29,0x3b,0x0a,0x20,0x20,0x20,0x20,0x7d,0x0a,
+    0x20,0x20,0x20,0x20,0x65,0x6c,0x73,0x65,0x0a,0x20,0x20,0x20,0x20,0x7b,0x0a,0x20,
+    0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x6f,0x75,0x74,0x2e,0x66,0x72,0x61,0x67,0x5f,
+    0x63,0x6f,0x6c,0x6f,0x72,0x20,0x3d,0x20,0x66,0x6c,0x6f,0x61,0x74,0x34,0x28,0x31,
+    0x2e,0x30,0x29,0x3b,0x0a,0x20,0x20,0x20,0x20,0x7d,0x0a,0x20,0x20,0x20,0x20,0x72,
+    0x65,0x74,0x75,0x72,0x6e,0x20,0x6f,0x75,0x74,0x3b,0x0a,0x7d,0x0a,0x0a,0x00,
+];
+mix_shader_desc :: (backend: sg_backend) -> sg_shader_desc {
+    desc: sg_shader_desc;
+    desc.label = "mix_shader";
+    if backend == {
+    case .GLCORE;
+        desc.vertex_func.source = xx *vs_mix_source_glsl430;
+        desc.vertex_func.entry = "main";
+        desc.fragment_func.source = xx *fs_mix_source_glsl430;
+        desc.fragment_func.entry = "main";
+        desc.attrs[0].base_type = .FLOAT;
+        desc.attrs[0].glsl_name = "position";
+        desc.attrs[1].base_type = .FLOAT;
+        desc.attrs[1].glsl_name = "uv";
+        desc.uniform_blocks[1].stage = .FRAGMENT;
+        desc.uniform_blocks[1].layout = .STD140;
+        desc.uniform_blocks[1].size = 16;
+        desc.uniform_blocks[1].glsl_uniforms[0].type = .INT;
+        desc.uniform_blocks[1].glsl_uniforms[0].array_count = 0;
+        desc.uniform_blocks[1].glsl_uniforms[0].glsl_name = "_10.op";
+        desc.uniform_blocks[1].glsl_uniforms[1].type = .FLOAT;
+        desc.uniform_blocks[1].glsl_uniforms[1].array_count = 0;
+        desc.uniform_blocks[1].glsl_uniforms[1].glsl_name = "_10.dof_min";
+        desc.uniform_blocks[1].glsl_uniforms[2].type = .FLOAT;
+        desc.uniform_blocks[1].glsl_uniforms[2].array_count = 0;
+        desc.uniform_blocks[1].glsl_uniforms[2].glsl_name = "_10.dof_max";
+        desc.uniform_blocks[1].glsl_uniforms[3].type = .FLOAT;
+        desc.uniform_blocks[1].glsl_uniforms[3].array_count = 0;
+        desc.uniform_blocks[1].glsl_uniforms[3].glsl_name = "_10.dof_point";
+        desc.images[0].stage = .FRAGMENT;
+        desc.images[0].multisampled = false;
+        desc.images[0].image_type = ._2D;
+        desc.images[0].sample_type = .FLOAT;
+        desc.images[1].stage = .FRAGMENT;
+        desc.images[1].multisampled = false;
+        desc.images[1].image_type = ._2D;
+        desc.images[1].sample_type = .FLOAT;
+        desc.images[2].stage = .FRAGMENT;
+        desc.images[2].multisampled = false;
+        desc.images[2].image_type = ._2D;
+        desc.images[2].sample_type = .FLOAT;
+        desc.samplers[0].stage = .FRAGMENT;
+        desc.samplers[0].sampler_type = .FILTERING;
+        desc.image_sampler_pairs[0].stage = .FRAGMENT;
+        desc.image_sampler_pairs[0].image_slot = 1;
+        desc.image_sampler_pairs[0].sampler_slot = 0;
+        desc.image_sampler_pairs[0].glsl_name = "mixtex_b_mixsmp";
+        desc.image_sampler_pairs[1].stage = .FRAGMENT;
+        desc.image_sampler_pairs[1].image_slot = 0;
+        desc.image_sampler_pairs[1].sampler_slot = 0;
+        desc.image_sampler_pairs[1].glsl_name = "mixtex_a_mixsmp";
+        desc.image_sampler_pairs[2].stage = .FRAGMENT;
+        desc.image_sampler_pairs[2].image_slot = 2;
+        desc.image_sampler_pairs[2].sampler_slot = 0;
+        desc.image_sampler_pairs[2].glsl_name = "mixtex_c_mixsmp";
+    case .GLES3;
+        desc.vertex_func.source = xx *vs_mix_source_glsl300es;
+        desc.vertex_func.entry = "main";
+        desc.fragment_func.source = xx *fs_mix_source_glsl300es;
+        desc.fragment_func.entry = "main";
+        desc.attrs[0].base_type = .FLOAT;
+        desc.attrs[0].glsl_name = "position";
+        desc.attrs[1].base_type = .FLOAT;
+        desc.attrs[1].glsl_name = "uv";
+        desc.uniform_blocks[1].stage = .FRAGMENT;
+        desc.uniform_blocks[1].layout = .STD140;
+        desc.uniform_blocks[1].size = 16;
+        desc.uniform_blocks[1].glsl_uniforms[0].type = .INT;
+        desc.uniform_blocks[1].glsl_uniforms[0].array_count = 0;
+        desc.uniform_blocks[1].glsl_uniforms[0].glsl_name = "_10.op";
+        desc.uniform_blocks[1].glsl_uniforms[1].type = .FLOAT;
+        desc.uniform_blocks[1].glsl_uniforms[1].array_count = 0;
+        desc.uniform_blocks[1].glsl_uniforms[1].glsl_name = "_10.dof_min";
+        desc.uniform_blocks[1].glsl_uniforms[2].type = .FLOAT;
+        desc.uniform_blocks[1].glsl_uniforms[2].array_count = 0;
+        desc.uniform_blocks[1].glsl_uniforms[2].glsl_name = "_10.dof_max";
+        desc.uniform_blocks[1].glsl_uniforms[3].type = .FLOAT;
+        desc.uniform_blocks[1].glsl_uniforms[3].array_count = 0;
+        desc.uniform_blocks[1].glsl_uniforms[3].glsl_name = "_10.dof_point";
+        desc.images[0].stage = .FRAGMENT;
+        desc.images[0].multisampled = false;
+        desc.images[0].image_type = ._2D;
+        desc.images[0].sample_type = .FLOAT;
+        desc.images[1].stage = .FRAGMENT;
+        desc.images[1].multisampled = false;
+        desc.images[1].image_type = ._2D;
+        desc.images[1].sample_type = .FLOAT;
+        desc.images[2].stage = .FRAGMENT;
+        desc.images[2].multisampled = false;
+        desc.images[2].image_type = ._2D;
+        desc.images[2].sample_type = .FLOAT;
+        desc.samplers[0].stage = .FRAGMENT;
+        desc.samplers[0].sampler_type = .FILTERING;
+        desc.image_sampler_pairs[0].stage = .FRAGMENT;
+        desc.image_sampler_pairs[0].image_slot = 1;
+        desc.image_sampler_pairs[0].sampler_slot = 0;
+        desc.image_sampler_pairs[0].glsl_name = "mixtex_b_mixsmp";
+        desc.image_sampler_pairs[1].stage = .FRAGMENT;
+        desc.image_sampler_pairs[1].image_slot = 0;
+        desc.image_sampler_pairs[1].sampler_slot = 0;
+        desc.image_sampler_pairs[1].glsl_name = "mixtex_a_mixsmp";
+        desc.image_sampler_pairs[2].stage = .FRAGMENT;
+        desc.image_sampler_pairs[2].image_slot = 2;
+        desc.image_sampler_pairs[2].sampler_slot = 0;
+        desc.image_sampler_pairs[2].glsl_name = "mixtex_c_mixsmp";
+    case .METAL_MACOS;
+        desc.vertex_func.source = xx *vs_mix_source_metal_macos;
+        desc.vertex_func.entry = "main0";
+        desc.fragment_func.source = xx *fs_mix_source_metal_macos;
+        desc.fragment_func.entry = "main0";
+        desc.attrs[0].base_type = .FLOAT;
+        desc.attrs[1].base_type = .FLOAT;
+        desc.uniform_blocks[1].stage = .FRAGMENT;
+        desc.uniform_blocks[1].layout = .STD140;
+        desc.uniform_blocks[1].size = 16;
+        desc.uniform_blocks[1].msl_buffer_n = 0;
+        desc.images[0].stage = .FRAGMENT;
+        desc.images[0].multisampled = false;
+        desc.images[0].image_type = ._2D;
+        desc.images[0].sample_type = .FLOAT;
+        desc.images[0].msl_texture_n = 0;
+        desc.images[1].stage = .FRAGMENT;
+        desc.images[1].multisampled = false;
+        desc.images[1].image_type = ._2D;
+        desc.images[1].sample_type = .FLOAT;
+        desc.images[1].msl_texture_n = 1;
+        desc.images[2].stage = .FRAGMENT;
+        desc.images[2].multisampled = false;
+        desc.images[2].image_type = ._2D;
+        desc.images[2].sample_type = .FLOAT;
+        desc.images[2].msl_texture_n = 2;
+        desc.samplers[0].stage = .FRAGMENT;
+        desc.samplers[0].sampler_type = .FILTERING;
+        desc.samplers[0].msl_sampler_n = 0;
+        desc.image_sampler_pairs[0].stage = .FRAGMENT;
+        desc.image_sampler_pairs[0].image_slot = 1;
+        desc.image_sampler_pairs[0].sampler_slot = 0;
+        desc.image_sampler_pairs[1].stage = .FRAGMENT;
+        desc.image_sampler_pairs[1].image_slot = 0;
+        desc.image_sampler_pairs[1].sampler_slot = 0;
+        desc.image_sampler_pairs[2].stage = .FRAGMENT;
+        desc.image_sampler_pairs[2].image_slot = 2;
+        desc.image_sampler_pairs[2].sampler_slot = 0;
+    }
+    return desc;
+}
diff --git a/src/shaders/jai/shader_op.jai b/src/shaders/jai/shader_op.jai
index 160c782..7be8dde 100644
--- a/src/shaders/jai/shader_op.jai
+++ b/src/shaders/jai/shader_op.jai
@@ -16,6 +16,9 @@
             ATTR_op_position => 0
             ATTR_op_uv => 1
     Bindings:
+        Uniform block 'op_fs_params':
+            Jai struct: Op_Fs_Params
+            Bind slot: UB_op_fs_params => 1
         Image 'optex':
             Image type: ._2D
             Sample type: .FLOAT
@@ -27,8 +30,17 @@
 */
 ATTR_op_position :: 0;
 ATTR_op_uv :: 1;
+UB_op_fs_params :: 1;
 IMG_optex :: 0;
 SMP_opsmp :: 0;
+Op_Fs_Params :: struct {
+    blur_size: s32;
+    op: s32;
+    separation: float;
+    dilate_min: float;
+    dilate_max: float;
+    _: [12]u8;
+};
 /*
     #version 430
 
@@ -62,6 +74,17 @@ vs_op_source_glsl430 := u8.[
 /*
     #version 430
 
+    struct op_fs_params
+    {
+        int blur_size;
+        int op;
+        float separation;
+        float dilate_min;
+        float dilate_max;
+    };
+
+    uniform op_fs_params _10;
+
     layout(binding = 16) uniform sampler2D optex_opsmp;
 
     layout(location = 0) in vec2 texcoord;
@@ -69,54 +92,254 @@ vs_op_source_glsl430 := u8.[
 
     void main()
     {
-        vec2 _28 = vec2(1.0) / vec2(textureSize(optex_opsmp, 0));
-        float result = 0.0;
-        for (int x = -2; x < 2; x++)
+        if (_10.op == 2)
         {
-            for (int y = -2; y < 2; y++)
+            vec2 _40 = vec2(1.0) / vec2(textureSize(optex_opsmp, 0));
+            vec3 result = vec3(0.0);
+            int _50 = -_10.blur_size;
+            for (int x = _50; x < _10.blur_size; x++)
             {
-                result += texture(optex_opsmp, texcoord + (vec2(float(x), float(y)) * _28)).x;
+                for (int y = _50; y < _10.blur_size; y++)
+                {
+                    result += texture(optex_opsmp, texcoord + (vec2(float(x), float(y)) * _40)).xyz;
+                }
+            }
+            frag_color = vec4(result / vec3(float(((_10.blur_size * 2) * _10.blur_size) * 2)), 1.0);
+        }
+        else
+        {
+            if (_10.op == 1)
+            {
+                vec2 _137 = vec2(textureSize(optex_opsmp, 0));
+                frag_color = texture(optex_opsmp, gl_FragCoord.xy / _137);
+                if (_10.blur_size <= 0)
+                {
+                    return;
+                }
+                float mx = 0.0;
+                vec4 cmx = frag_color;
+                int _163 = -_10.blur_size;
+                for (int i = _163; i <= _10.blur_size; i++)
+                {
+                    for (int j = _163; j <= _10.blur_size; j++)
+                    {
+                        if (!(distance(vec2(float(i), float(j)), vec2(0.0)) <= float(_10.blur_size)))
+                        {
+                            continue;
+                        }
+                        vec4 _218 = texture(optex_opsmp, (gl_FragCoord.xy + (vec2(float(i), float(j)) * _10.separation)) / _137);
+                        float _226 = dot(_218.xyz, vec3(0.300000011920928955078125, 0.589999973773956298828125, 0.10999999940395355224609375));
+                        if (_226 > mx)
+                        {
+                            mx = _226;
+                            cmx = _218;
+                        }
+                    }
+                }
+                vec4 _238 = frag_color;
+                vec3 _247 = mix(_238.xyz, cmx.xyz, vec3(smoothstep(_10.dilate_min, _10.dilate_max, mx)));
+                frag_color.x = _247.x;
+                frag_color.y = _247.y;
+                frag_color.z = _247.z;
+            }
+            else
+            {
+                vec2 _268 = vec2(1.0) / vec2(textureSize(optex_opsmp, 0));
+                float result_1 = 0.0;
+                int _273 = -_10.blur_size;
+                for (int x_1 = _273; x_1 < _10.blur_size; x_1++)
+                {
+                    for (int y_1 = _273; y_1 < _10.blur_size; y_1++)
+                    {
+                        result_1 += texture(optex_opsmp, texcoord + (vec2(float(x_1), float(y_1)) * _268)).x;
+                    }
+                }
+                float _327 = result_1 / float(((_10.blur_size * 2) * _10.blur_size) * 2);
+                frag_color = vec4(_327, _327, _327, 1.0);
             }
         }
-        float _84 = result * 0.0625;
-        frag_color = vec4(_84, _84, _84, 1.0);
     }
 
 */
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 ];
 /*
     #version 300 es
@@ -151,6 +374,17 @@ vs_op_source_glsl300es := u8.[
     precision mediump float;
     precision highp int;
 
+    struct op_fs_params
+    {
+        int blur_size;
+        int op;
+        highp float separation;
+        highp float dilate_min;
+        highp float dilate_max;
+    };
+
+    uniform op_fs_params _10;
+
     uniform highp sampler2D optex_opsmp;
 
     in highp vec2 texcoord;
@@ -158,17 +392,72 @@ vs_op_source_glsl300es := u8.[
 
     void main()
     {
-        highp vec2 _28 = vec2(1.0) / vec2(textureSize(optex_opsmp, 0));
-        highp float result = 0.0;
-        for (int x = -2; x < 2; x++)
+        if (_10.op == 2)
         {
-            for (int y = -2; y < 2; y++)
+            highp vec2 _40 = vec2(1.0) / vec2(textureSize(optex_opsmp, 0));
+            highp vec3 result = vec3(0.0);
+            int _50 = -_10.blur_size;
+            for (int x = _50; x < _10.blur_size; x++)
             {
-                result += texture(optex_opsmp, texcoord + (vec2(float(x), float(y)) * _28)).x;
+                for (int y = _50; y < _10.blur_size; y++)
+                {
+                    result += texture(optex_opsmp, texcoord + (vec2(float(x), float(y)) * _40)).xyz;
+                }
+            }
+            frag_color = vec4(result / vec3(float(((_10.blur_size * 2) * _10.blur_size) * 2)), 1.0);
+        }
+        else
+        {
+            if (_10.op == 1)
+            {
+                highp vec2 _137 = vec2(textureSize(optex_opsmp, 0));
+                frag_color = texture(optex_opsmp, gl_FragCoord.xy / _137);
+                if (_10.blur_size <= 0)
+                {
+                    return;
+                }
+                highp float mx = 0.0;
+                highp vec4 cmx = frag_color;
+                int _163 = -_10.blur_size;
+                for (int i = _163; i <= _10.blur_size; i++)
+                {
+                    for (int j = _163; j <= _10.blur_size; j++)
+                    {
+                        if (!(distance(vec2(float(i), float(j)), vec2(0.0)) <= float(_10.blur_size)))
+                        {
+                            continue;
+                        }
+                        highp vec4 _218 = texture(optex_opsmp, (gl_FragCoord.xy + (vec2(float(i), float(j)) * _10.separation)) / _137);
+                        highp float _226 = dot(_218.xyz, vec3(0.300000011920928955078125, 0.589999973773956298828125, 0.10999999940395355224609375));
+                        if (_226 > mx)
+                        {
+                            mx = _226;
+                            cmx = _218;
+                        }
+                    }
+                }
+                highp vec4 _238 = frag_color;
+                highp vec3 _247 = mix(_238.xyz, cmx.xyz, vec3(smoothstep(_10.dilate_min, _10.dilate_max, mx)));
+                frag_color.x = _247.x;
+                frag_color.y = _247.y;
+                frag_color.z = _247.z;
+            }
+            else
+            {
+                highp vec2 _268 = vec2(1.0) / vec2(textureSize(optex_opsmp, 0));
+                highp float result_1 = 0.0;
+                int _273 = -_10.blur_size;
+                for (int x_1 = _273; x_1 < _10.blur_size; x_1++)
+                {
+                    for (int y_1 = _273; y_1 < _10.blur_size; y_1++)
+                    {
+                        result_1 += texture(optex_opsmp, texcoord + (vec2(float(x_1), float(y_1)) * _268)).x;
+                    }
+                }
+                highp float _327 = result_1 / float(((_10.blur_size * 2) * _10.blur_size) * 2);
+                frag_color = vec4(_327, _327, _327, 1.0);
             }
         }
-        highp float _84 = result * 0.0625;
-        frag_color = vec4(_84, _84, _84, 1.0);
     }
 
 */
@@ -176,39 +465,188 @@ fs_op_source_glsl300es := u8.[
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 ];
 /*
     #include <metal_stdlib>
@@ -273,6 +711,15 @@ vs_op_source_metal_macos := u8.[
 
     using namespace metal;
 
+    struct op_fs_params
+    {
+        int blur_size;
+        int op;
+        float separation;
+        float dilate_min;
+        float dilate_max;
+    };
+
     struct main0_out
     {
         float4 frag_color [[color(0)]];
@@ -283,20 +730,75 @@ vs_op_source_metal_macos := u8.[
         float2 texcoord [[user(locn0)]];
     };
 
-    fragment main0_out main0(main0_in in [[stage_in]], texture2d<float> optex [[texture(0)]], sampler opsmp [[sampler(0)]])
+    fragment main0_out main0(main0_in in [[stage_in]], constant op_fs_params& _10 [[buffer(0)]], texture2d<float> optex [[texture(0)]], sampler opsmp [[sampler(0)]], float4 gl_FragCoord [[position]])
     {
         main0_out out = {};
-        float2 _28 = float2(1.0) / float2(int2(optex.get_width(), optex.get_height()));
-        float result = 0.0;
-        for (int x = -2; x < 2; x++)
+        if (_10.op == 2)
         {
-            for (int y = -2; y < 2; y++)
+            float2 _40 = float2(1.0) / float2(int2(optex.get_width(), optex.get_height()));
+            float3 result = float3(0.0);
+            int _50 = -_10.blur_size;
+            for (int x = _50; x < _10.blur_size; x++)
             {
-                result += optex.sample(opsmp, (in.texcoord + (float2(float(x), float(y)) * _28))).x;
+                for (int y = _50; y < _10.blur_size; y++)
+                {
+                    result += optex.sample(opsmp, (in.texcoord + (float2(float(x), float(y)) * _40))).xyz;
+                }
+            }
+            out.frag_color = float4(result / float3(float(((_10.blur_size * 2) * _10.blur_size) * 2)), 1.0);
+        }
+        else
+        {
+            if (_10.op == 1)
+            {
+                float2 _137 = float2(int2(optex.get_width(), optex.get_height()));
+                out.frag_color = optex.sample(opsmp, (gl_FragCoord.xy / _137));
+                if (_10.blur_size <= 0)
+                {
+                    return out;
+                }
+                float mx = 0.0;
+                float4 cmx = out.frag_color;
+                int _163 = -_10.blur_size;
+                for (int i = _163; i <= _10.blur_size; i++)
+                {
+                    for (int j = _163; j <= _10.blur_size; j++)
+                    {
+                        if (!(distance(float2(float(i), float(j)), float2(0.0)) <= float(_10.blur_size)))
+                        {
+                            continue;
+                        }
+                        float4 _218 = optex.sample(opsmp, ((gl_FragCoord.xy + (float2(float(i), float(j)) * _10.separation)) / _137));
+                        float _226 = dot(_218.xyz, float3(0.300000011920928955078125, 0.589999973773956298828125, 0.10999999940395355224609375));
+                        if (_226 > mx)
+                        {
+                            mx = _226;
+                            cmx = _218;
+                        }
+                    }
+                }
+                float4 _238 = out.frag_color;
+                float3 _247 = mix(_238.xyz, cmx.xyz, float3(smoothstep(_10.dilate_min, _10.dilate_max, mx)));
+                out.frag_color.x = _247.x;
+                out.frag_color.y = _247.y;
+                out.frag_color.z = _247.z;
+            }
+            else
+            {
+                float2 _268 = float2(1.0) / float2(int2(optex.get_width(), optex.get_height()));
+                float result_1 = 0.0;
+                int _273 = -_10.blur_size;
+                for (int x_1 = _273; x_1 < _10.blur_size; x_1++)
+                {
+                    for (int y_1 = _273; y_1 < _10.blur_size; y_1++)
+                    {
+                        result_1 += optex.sample(opsmp, (in.texcoord + (float2(float(x_1), float(y_1)) * _268))).x;
+                    }
+                }
+                float _327 = result_1 / float(((_10.blur_size * 2) * _10.blur_size) * 2);
+                out.frag_color = float4(_327, _327, _327, 1.0);
             }
         }
-        float _84 = result * 0.0625;
-        out.frag_color = float4(_84, _84, _84, 1.0);
         return out;
     }
 
@@ -306,49 +808,204 @@ fs_op_source_metal_macos := u8.[
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+    0x29,0x3b,0x0a,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x7d,0x0a,0x20,0x20,0x20,
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+    0x74,0x3b,0x0a,0x7d,0x0a,0x0a,0x00,
 ];
 op_shader_desc :: (backend: sg_backend) -> sg_shader_desc {
     desc: sg_shader_desc;
@@ -363,6 +1020,24 @@ op_shader_desc :: (backend: sg_backend) -> sg_shader_desc {
         desc.attrs[0].glsl_name = "position";
         desc.attrs[1].base_type = .FLOAT;
         desc.attrs[1].glsl_name = "uv";
+        desc.uniform_blocks[1].stage = .FRAGMENT;
+        desc.uniform_blocks[1].layout = .STD140;
+        desc.uniform_blocks[1].size = 32;
+        desc.uniform_blocks[1].glsl_uniforms[0].type = .INT;
+        desc.uniform_blocks[1].glsl_uniforms[0].array_count = 0;
+        desc.uniform_blocks[1].glsl_uniforms[0].glsl_name = "_10.blur_size";
+        desc.uniform_blocks[1].glsl_uniforms[1].type = .INT;
+        desc.uniform_blocks[1].glsl_uniforms[1].array_count = 0;
+        desc.uniform_blocks[1].glsl_uniforms[1].glsl_name = "_10.op";
+        desc.uniform_blocks[1].glsl_uniforms[2].type = .FLOAT;
+        desc.uniform_blocks[1].glsl_uniforms[2].array_count = 0;
+        desc.uniform_blocks[1].glsl_uniforms[2].glsl_name = "_10.separation";
+        desc.uniform_blocks[1].glsl_uniforms[3].type = .FLOAT;
+        desc.uniform_blocks[1].glsl_uniforms[3].array_count = 0;
+        desc.uniform_blocks[1].glsl_uniforms[3].glsl_name = "_10.dilate_min";
+        desc.uniform_blocks[1].glsl_uniforms[4].type = .FLOAT;
+        desc.uniform_blocks[1].glsl_uniforms[4].array_count = 0;
+        desc.uniform_blocks[1].glsl_uniforms[4].glsl_name = "_10.dilate_max";
         desc.images[0].stage = .FRAGMENT;
         desc.images[0].multisampled = false;
         desc.images[0].image_type = ._2D;
@@ -382,6 +1057,24 @@ op_shader_desc :: (backend: sg_backend) -> sg_shader_desc {
         desc.attrs[0].glsl_name = "position";
         desc.attrs[1].base_type = .FLOAT;
         desc.attrs[1].glsl_name = "uv";
+        desc.uniform_blocks[1].stage = .FRAGMENT;
+        desc.uniform_blocks[1].layout = .STD140;
+        desc.uniform_blocks[1].size = 32;
+        desc.uniform_blocks[1].glsl_uniforms[0].type = .INT;
+        desc.uniform_blocks[1].glsl_uniforms[0].array_count = 0;
+        desc.uniform_blocks[1].glsl_uniforms[0].glsl_name = "_10.blur_size";
+        desc.uniform_blocks[1].glsl_uniforms[1].type = .INT;
+        desc.uniform_blocks[1].glsl_uniforms[1].array_count = 0;
+        desc.uniform_blocks[1].glsl_uniforms[1].glsl_name = "_10.op";
+        desc.uniform_blocks[1].glsl_uniforms[2].type = .FLOAT;
+        desc.uniform_blocks[1].glsl_uniforms[2].array_count = 0;
+        desc.uniform_blocks[1].glsl_uniforms[2].glsl_name = "_10.separation";
+        desc.uniform_blocks[1].glsl_uniforms[3].type = .FLOAT;
+        desc.uniform_blocks[1].glsl_uniforms[3].array_count = 0;
+        desc.uniform_blocks[1].glsl_uniforms[3].glsl_name = "_10.dilate_min";
+        desc.uniform_blocks[1].glsl_uniforms[4].type = .FLOAT;
+        desc.uniform_blocks[1].glsl_uniforms[4].array_count = 0;
+        desc.uniform_blocks[1].glsl_uniforms[4].glsl_name = "_10.dilate_max";
         desc.images[0].stage = .FRAGMENT;
         desc.images[0].multisampled = false;
         desc.images[0].image_type = ._2D;
@@ -399,6 +1092,10 @@ op_shader_desc :: (backend: sg_backend) -> sg_shader_desc {
         desc.fragment_func.entry = "main0";
         desc.attrs[0].base_type = .FLOAT;
         desc.attrs[1].base_type = .FLOAT;
+        desc.uniform_blocks[1].stage = .FRAGMENT;
+        desc.uniform_blocks[1].layout = .STD140;
+        desc.uniform_blocks[1].size = 32;
+        desc.uniform_blocks[1].msl_buffer_n = 0;
         desc.images[0].stage = .FRAGMENT;
         desc.images[0].multisampled = false;
         desc.images[0].image_type = ._2D;
diff --git a/src/shaders/shader_gbuffer.glsl b/src/shaders/shader_gbuffer.glsl
index de348be..5d6a820 100644
--- a/src/shaders/shader_gbuffer.glsl
+++ b/src/shaders/shader_gbuffer.glsl
@@ -2,6 +2,8 @@
 layout(binding=0) uniform gbuffer_vs_params {
     mat4 mvp;
     mat4 view_matrix;
+    int isGround;
+    float planeHeight;
 };
 
 in vec4 position;
@@ -13,12 +15,20 @@ out vec3 view_space_pos;
 out vec3 view_space_normal;
 
 void main() {
-    vec4 world_pos = vec4(position.xyz + instance.xyz, 1.0);
-    vec4 view_pos_4 = view_matrix * world_pos;
-
-    gl_Position = mvp * world_pos;
-    view_space_pos = view_pos_4.xyz;
-    view_space_normal = mat3(view_matrix) * normal.xyz;
+    if (isGround == 1) {
+        vec4 world_pos = vec4(position.x * 100.0, planeHeight, position.z * 100.0, 1.0);
+        vec4 view_pos_4 = view_matrix * world_pos;
+        gl_Position = mvp * world_pos;
+        view_space_pos = view_pos_4.xyz;
+        view_space_normal = mat3(view_matrix) * normal.xyz;
+    } else {
+        vec4 world_pos = vec4(position.xyz + instance.xyz, 1.0);
+        vec4 view_pos_4 = view_matrix * world_pos;
+        gl_Position = mvp * world_pos;
+        view_space_pos = view_pos_4.xyz;
+        view_space_normal = mat3(view_matrix) * normal.xyz;
+        
+    }
 }
 @end
 
diff --git a/src/shaders/shader_mix.glsl b/src/shaders/shader_mix.glsl
new file mode 100644
index 0000000..4228765
--- /dev/null
+++ b/src/shaders/shader_mix.glsl
@@ -0,0 +1,49 @@
+@vs vs_mix
+in vec2 position;
+in vec2 uv;
+
+out vec2 texcoord;
+
+void main() {
+    gl_Position = vec4(position, 0.5, 1.0);
+    texcoord = uv;
+}
+@end
+
+@fs fs_mix
+in vec2 texcoord;
+out vec4 frag_color;
+
+layout(binding=1) uniform mix_fs_params {
+    int op;
+    float dof_min;
+    float dof_max;
+    float dof_point;
+    /*
+        List of mixs:
+        0. blur for ssao
+        1. dilate.
+        2. normal blur
+    */
+};
+
+layout(binding = 0) uniform texture2D mixtex_a;
+layout(binding = 1) uniform texture2D mixtex_b;
+layout(binding = 2) uniform texture2D mixtex_c;
+layout(binding = 0) uniform sampler mixsmp;
+
+void main() {
+    if(op == 0) {
+        vec2 texelSize = 1.0 / vec2(textureSize(sampler2D(mixtex_a, mixsmp), 0));
+        vec3 in_focus  = texture(sampler2D(mixtex_b, mixsmp), texcoord).rgb;
+        vec3 out_focus = texture(sampler2D(mixtex_a, mixsmp), texcoord).rgb;
+        vec4 position  = texture(sampler2D(mixtex_c, mixsmp), texcoord);
+        float blur = smoothstep(dof_min, dof_max, abs(position.z + dof_point));
+        frag_color = vec4(mix(in_focus, out_focus, blur), 1.0);
+    } else {
+        frag_color = vec4(1.0);
+    }
+}
+@end
+
+@program mix vs_mix fs_mix
diff --git a/src/shaders/shader_op.glsl b/src/shaders/shader_op.glsl
index 5368138..5885c7b 100644
--- a/src/shaders/shader_op.glsl
+++ b/src/shaders/shader_op.glsl
@@ -14,21 +14,69 @@ void main() {
 in vec2 texcoord;
 out vec4 frag_color;
 
+layout(binding=1) uniform op_fs_params {
+    int blur_size;
+    int op;
+    float separation;
+    float dilate_min;
+    float dilate_max;
+    /*
+        List of ops:
+        0. blur for ssao
+        1. dilate.
+        2. normal blur
+    */
+};
+
 layout(binding = 0) uniform texture2D optex;
 layout(binding = 0) uniform sampler opsmp;
 
 void main() {
-    vec2 texelSize = 1.0 / vec2(textureSize(sampler2D(optex, opsmp), 0));
-    float result = 0.0;
-    for (int x = -2; x < 2; ++x) 
-    {
-        for (int y = -2; y < 2; ++y) 
+    if(op == 2) {
+        vec2 texelSize = 1.0 / vec2(textureSize(sampler2D(optex, opsmp), 0));
+        vec3 result = vec3(0.0);
+        for (int x = -blur_size; x < blur_size; ++x) 
         {
-            vec2 offset = vec2(float(x), float(y)) * texelSize;
-            result += texture(sampler2D(optex, opsmp), texcoord + offset).r;
+            for (int y = -blur_size; y < blur_size; ++y) 
+            {
+                vec2 offset = vec2(float(x), float(y)) * texelSize;
+                result += texture(sampler2D(optex, opsmp), texcoord + offset).xyz;
+            }
         }
+        frag_color = vec4((result / (blur_size*2 * blur_size*2)), 1.0);
+    }
+    else if(op == 1) {
+          float minThreshold = dilate_min;
+          float maxThreshold = dilate_max;
+          vec2 texSize   = textureSize(sampler2D(optex, opsmp), 0).xy;
+          vec2 fragCoord = gl_FragCoord.xy;
+          frag_color = texture(sampler2D(optex, opsmp), fragCoord / texSize);
+          if (blur_size <= 0) { return; }
+          float mx = 0.0;
+          vec4 cmx = frag_color;
+          for (int i = -blur_size; i <= blur_size; ++i) {
+            for (int j = -blur_size; j <= blur_size; ++j) {
+              if (!(distance(vec2(i, j), vec2(0, 0)) <= blur_size)) { continue; }
+              vec4 c = texture(sampler2D(optex,opsmp),(gl_FragCoord.xy + (vec2(i, j) * separation)) / texSize);
+              float mxt = dot(c.rgb, vec3(0.3, 0.59, 0.11));
+              if (mxt > mx) {
+                mx = mxt;
+                cmx = c;
+              }
+            }
+          }
+          frag_color.rgb = mix(frag_color.rgb, cmx.rgb, smoothstep(minThreshold, maxThreshold, mx)); 
+    } else {
+        vec2 texelSize = 1.0 / vec2(textureSize(sampler2D(optex, opsmp), 0));
+        float result = 0.0;
+        for (int x = -blur_size; x < blur_size; ++x) {
+            for (int y = -blur_size; y < blur_size; ++y) {
+                vec2 offset = vec2(float(x), float(y)) * texelSize;
+                result += texture(sampler2D(optex, opsmp), texcoord + offset).r;
+            }
+        }
+        frag_color = vec4(vec3(result / (blur_size*2 * blur_size*2)), 1.0);
     }
-    frag_color = vec4(vec3(result / (4.0 * 4.0)), 1.0);
 }
 @end
 
diff --git a/trueno/trueno.xcodeproj/project.xcworkspace/xcuserdata/tuomas.katajisto.xcuserdatad/UserInterfaceState.xcuserstate b/trueno/trueno.xcodeproj/project.xcworkspace/xcuserdata/tuomas.katajisto.xcuserdatad/UserInterfaceState.xcuserstate
index a1fe4b1..cea6e65 100644
Binary files a/trueno/trueno.xcodeproj/project.xcworkspace/xcuserdata/tuomas.katajisto.xcuserdatad/UserInterfaceState.xcuserstate and b/trueno/trueno.xcodeproj/project.xcworkspace/xcuserdata/tuomas.katajisto.xcuserdatad/UserInterfaceState.xcuserstate differ