some refactoring

src/main.jai

@@ -258,7 +258,7 @@ frame :: () {
     add_frame_profiling_point("After UI draw");
 
     #if !FLAG_RELEASE_BUILD {
-        prepare_text(debug_font, tprint("frametime: % ms", latest_frametime * 1000));
+        prepare_text(debug_font, tprint("frametime: % ms", delta_time * 1000));
         draw_prepared_text(debug_font, 10, 10, .{0.0, 1.0, 0.0, 1.0});
         draw_editor();
     }
@@ -276,7 +276,6 @@ frame :: () {
     #if OS != .WASM { profiler_update(); }
     reset_temporary_storage();
     frame_end_time := get_time();
-    latest_frametime = frame_end_time - frame_start_time;
     input_per_frame_event_and_flag_update();
 }
 

src/platform_specific/common.jai

@@ -1,13 +1,13 @@
-#import,dir "../../modules/sokol-jai/sokol/app"(DEBUG = !FLAG_RELEASE_BUILD);
+#import,dir "../../modules/sokol-jai/sokol/app"(DEBUG = FLAG_RELEASE_BUILD);
-#import,dir "../../modules/sokol-jai/sokol/gfx"(DEBUG = !FLAG_RELEASE_BUILD);
+#import,dir "../../modules/sokol-jai/sokol/gfx"(DEBUG = FLAG_RELEASE_BUILD);
-#import,dir "../../modules/sokol-jai/sokol/gl"(DEBUG = !FLAG_RELEASE_BUILD);
+#import,dir "../../modules/sokol-jai/sokol/gl"(DEBUG = FLAG_RELEASE_BUILD);
-#import,dir "../../modules/sokol-jai/sokol/glue"(DEBUG = !FLAG_RELEASE_BUILD);
+#import,dir "../../modules/sokol-jai/sokol/glue"(DEBUG = FLAG_RELEASE_BUILD);
-#import,dir "../../modules/sokol-jai/sokol/shape"(DEBUG = !FLAG_RELEASE_BUILD);
+#import,dir "../../modules/sokol-jai/sokol/shape"(DEBUG = FLAG_RELEASE_BUILD);
 #import,dir "../../modules/sokol-jai/sokol/fontstash";
-#import,dir "../../modules/sokol-jai/sokol/log"(DEBUG = !FLAG_RELEASE_BUILD);
+#import,dir "../../modules/sokol-jai/sokol/log"(DEBUG = FLAG_RELEASE_BUILD);
-#import,dir "../../modules/sokol-jai/sokol/time"(DEBUG = !FLAG_RELEASE_BUILD);
+#import,dir "../../modules/sokol-jai/sokol/time"(DEBUG = FLAG_RELEASE_BUILD);
-#import,dir "../../modules/sokol-jai/sokol/fetch"(DEBUG = !FLAG_RELEASE_BUILD);
+#import,dir "../../modules/sokol-jai/sokol/fetch"(DEBUG = FLAG_RELEASE_BUILD);
-#import,dir "../../modules/sokol-jai/sokol/audio"(DEBUG = !FLAG_RELEASE_BUILD);
+#import,dir "../../modules/sokol-jai/sokol/audio"(DEBUG = FLAG_RELEASE_BUILD);
 
 #load "../main.jai";
 

src/rendering/backend_sokol.jai

@@ -239,7 +239,7 @@ backend_draw_trile_positions_main :: (trile : string, amount : s32, worldConf: *
     fs_params.screen_w = w;
     fs_params.screen_h = h;
     lc := *current_lighting_config;
-    fs_params.rdm_enabled       = lc.rdm_enabled;
+    fs_params.rdm_enabled       = ifx in_reflection_pass then 0 else lc.rdm_enabled;
     fs_params.ambient_intensity = lc.ambient_intensity;
     fs_params.emissive_scale    = lc.emissive_scale;
     fs_params.rdm_diff_scale    = lc.rdm_diff_scale;
@@ -464,7 +464,7 @@ backend_process_command_buckets :: () {
     end_frame_profiling_group("G-Buffer pass");
      
     start_frame_profiling_group("SSAO pass");
-    sg_begin_pass(*(sg_pass.{ action = state.pass_action_clear, attachments = g_postprocess_attach_a }));
+    sg_begin_pass(*(sg_pass.{ action = state.pass_action_clear, attachments = g_ssao_attachments }));
     sg_apply_pipeline(gPipelines.ssao.pipeline);
     gPipelines.ssao.bind.images[0] = g_gbuf_position;
     gPipelines.ssao.bind.images[1] = g_gbuf_normal;
@@ -480,19 +480,6 @@ backend_process_command_buckets :: () {
     sg_end_pass();
     end_frame_profiling_group("SSAO pass");   
 
-    start_frame_profiling_group("SSAO blur 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 = current_post_process.ssao_size;
-    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();
-    end_frame_profiling_group("SSAO blur pass");
-
     // 5. Main pass
     start_frame_profiling_group("Main pass");
 	sg_begin_pass(*(sg_pass.{ action = state.pass_action_clear, attachments = g_rendertex_attachments}));
@@ -506,8 +493,8 @@ backend_process_command_buckets :: () {
     start_frame_profiling_group("Postprocess pass");
     if !bypass_postprocess {
         bloom_process();
-        dof_process();
     }
+    
     end_frame_profiling_group("Postprocess pass");
 
     start_frame_profiling_group("Final pass");
@@ -516,8 +503,9 @@ backend_process_command_buckets :: () {
 
     // Draw the render texture and do post processing:
     sg_apply_pipeline(gPipelines.postprocess.pipeline);
-    gPipelines.postprocess.bind.images[0] = ifx bypass_postprocess then g_rendertex else g_postprocess_a;
+    gPipelines.postprocess.bind.images[0] = g_rendertex;
     gPipelines.postprocess.bind.images[1] = LUT_list[g_current_lut_texture_index].image;
+    gPipelines.postprocess.bind.images[2] = g_bloom_tex;
     sg_apply_bindings(*gPipelines.postprocess.bind);
     post_process_config_uniform : Post_Process_Config;
     if bypass_postprocess {

src/rendering/backend_sokol_helpers.jai

@@ -1,27 +1,11 @@
 bloom_process :: () {
-    sg_begin_pass(*(sg_pass.{ action = state.pass_action_clear, attachments = g_postprocess_attach_a }));
+    sg_begin_pass(*(sg_pass.{ action = state.pass_action_clear, attachments = g_bloom_attach }));
-    sg_apply_pipeline(gPipelines.op.pipeline);
+    sg_apply_pipeline(gPipelines.bloom.pipeline);
-    op_uniform_bloom : Op_Fs_Params;
+    params : Bloom_Params;
-    op_uniform_bloom.blur_size = current_post_process.bloom_size;
+    params.bloom_treshold = current_post_process.bloom_treshold;
-    op_uniform_bloom.separation = current_post_process.bloom_separation;
+    gPipelines.bloom.bind.images[IMG_bloom_src] = g_rendertex;
-    op_uniform_bloom.bloom_treshold = current_post_process.bloom_treshold;
+    sg_apply_uniforms(UB_bloom_params, *(sg_range.{ ptr = *params, size = size_of(type_of(params)) }));
-    op_uniform_bloom.bloom_amount = current_post_process.bloom_amount;
+    sg_apply_bindings(*gPipelines.bloom.bind);
-    op_uniform_bloom.op=3;
-    gPipelines.op.bind.images[0] = g_rendertex;
-    sg_apply_uniforms(UB_op_fs_params, *(sg_range.{ ptr = *op_uniform_bloom, size = size_of(type_of(op_uniform_bloom)) }));
-    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.mix.pipeline);
-    mix_uniform : Mix_Fs_Params;
-    mix_uniform.op = 1;
-    gPipelines.mix.bind.images[0] = g_postprocess_a;
-    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();
 }

src/rendering/pipelines.jai

@@ -37,6 +37,9 @@ g_postprocess_b_depth   : sg_image;
 g_postprocess_attach_a  : sg_attachments;
 g_postprocess_attach_b  : sg_attachments;
 
+g_bloom_tex    : sg_image;
+g_bloom_attach : sg_attachments;
+  
 
 gPipelines : struct {
     // G-Buffer generation for SSAO and other effects
@@ -69,6 +72,8 @@ gPipelines : struct {
 
     mix : Pipeline_Binding;
 
+    bloom : Pipeline_Binding;
+    
     billboard : Pipeline_Binding;
     
     gbuffer_billboard : Pipeline_Binding;
@@ -154,6 +159,7 @@ create_pipelines :: () {
     create_ssao_pipeline();
     create_op_pipeline();
     create_mix_pipeline();
+    create_bloom_pipeline();
     create_billboard_pipeline();
     create_gbuffer_billboard_pipeline();
     create_particle_pipeline();
@@ -531,14 +537,14 @@ create_plane_pipeline_reflection_images :: () {
 
     w, h := get_render_size();
     img_desc := sg_image_desc.{
-        width = w/2,
+        width = w/3,
-        height = h/2,
+        height = h/3,
-        pixel_format = .RGBA32F,
+        pixel_format = .RGBA8,
         render_target = true,
     };
     depth_desc := sg_image_desc.{
-        width = w/2,
+        width = w/3,
-        height = h/2,
+        height = h/3,
         pixel_format = .DEPTH,
         render_target = true,
     };
@@ -740,6 +746,13 @@ create_postprocess_pipeline :: () {
         mag_filter = .LINEAR,
     }));
 
+    gPipelines.postprocess.bind.samplers[2] = sg_make_sampler(*(sg_sampler_desc.{
+        wrap_u = .CLAMP_TO_EDGE,
+        wrap_v = .CLAMP_TO_EDGE,
+        min_filter = .LINEAR,
+        mag_filter = .LINEAR,
+    }));
+
 }
 
 // Takes in a texture, manipulates it and outputs it.
@@ -979,6 +992,52 @@ create_mix_pipeline :: () {
 
 }
 
+create_bloom_pipeline :: () {
+    platconf := get_plat_conf();
+    pipeline: sg_pipeline_desc;
+    shader_desc := bloom_shader_desc(sg_query_backend());
+    pipeline.shader = sg_make_shader(*shader_desc);
+
+    pipeline.layout.attrs[ATTR_bloom_position] = .{ format = .FLOAT2 };
+    pipeline.layout.attrs[ATTR_bloom_uv]       = .{ format = .FLOAT2 };
+    pipeline.index_type = .UINT16;
+
+    pipeline.color_count = 1;
+    pipeline.colors[0] = .{ pixel_format = .RGBA32F };
+
+    gPipelines.bloom.pipeline = sg_make_pipeline(*pipeline);
+
+    quad_vertices : [16]float = .[
+        -1.0,  1.0, 0.0, flip_if_plat(1.0),
+        -1.0, -1.0, 0.0, flip_if_plat(0.0),
+         1.0, -1.0, 1.0, flip_if_plat(0.0),
+         1.0,  1.0, 1.0, flip_if_plat(1.0),
+    ];
+    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.bloom.bind.vertex_buffers[0] = sg_make_buffer(*vbuffer);
+    gPipelines.bloom.bind.index_buffer = sg_make_buffer(*ibuffer);
+    gPipelines.bloom.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);
@@ -991,7 +1050,7 @@ create_ssao_images :: () {
         width = w/2,
         height = h/2,
         render_target = true,
-        pixel_format = .RGBA32F
+        pixel_format = .RGBA8
     };
     img_desc.sample_count = 1;
     g_ssaobuf = sg_make_image(*img_desc);
@@ -1029,6 +1088,21 @@ create_ssao_images :: () {
     g_postprocess_attach_a = sg_make_attachments(*attachmentsDescA);
     sg_destroy_attachments(g_postprocess_attach_b);
     g_postprocess_attach_b = sg_make_attachments(*attachmentsDescB);
+
+    if g_bloom_tex.id != INVALID_ID then sg_destroy_image(g_bloom_tex);
+    bloom_img_desc := sg_image_desc.{
+        width = w/8,
+        height = h/8,
+        pixel_format = .RGBA32F,
+        render_target = true,
+        sample_count = 1,
+    };
+    g_bloom_tex = sg_make_image(*bloom_img_desc);
+    bloom_attach_desc := sg_attachments_desc.{
+        colors[0].image = g_bloom_tex,
+    };
+    sg_destroy_attachments(g_bloom_attach);
+    g_bloom_attach = sg_make_attachments(*bloom_attach_desc);
 }
 
 create_ssao_pipeline :: () {

src/rendering/post_processing.jai

@@ -14,8 +14,6 @@ Post_Process :: struct {
     dof_min           : float = 1.0; @Slider,0,10,1;
     dof_max           : float = 3.0; @Slider,0,50,1;
     dof_point         : float = 5.0; @Slider,0,30,1;
-    bloom_size        : s32   = 5;   @Slider,0,10,1;
-    bloom_separation  : float = 3.0; @Slider,0,10,1;
     bloom_treshold    : float = 0.4; @Slider,0,1,0.1;
     bloom_amount      : float = 0.0; @Slider,0,5,0.1;
 

src/rendering/tasks.jai

@@ -183,6 +183,7 @@ tasks_to_commands :: () {
                 memcpy(drawCmd.uv_rects.data, particleTask.uv_rects.data, particleTask.count * size_of(Vector4));
                 memcpy(drawCmd.colors.data, particleTask.colors.data, particleTask.count * size_of(Vector4));
                 array_add(*render_command_buckets.main, drawCmd);
+                array_add(*render_command_buckets.reflection, drawCmd);
             case .SET_CAMERA;
                 task := (cast(*Rendering_Task_Set_Camera)it);
                 command := New(Render_Command_Set_Camera,, temp);

src/shaders/jai/shader_bloom.jai

@@ -0,0 +1,423 @@
+/*
+    #version:1# (machine generated, don't edit!)
+
+    Generated by sokol-shdc (https://github.com/floooh/sokol-tools)
+
+    Cmdline:
+        sokol-shdc -i shader_bloom.glsl -o ./jai/shader_bloom.jai -l glsl430:glsl300es:metal_macos -f sokol_jai
+
+    Overview:
+    =========
+    Shader program: 'bloom':
+        Get shader desc: bloom_shader_desc(sg_query_backend())
+        Vertex Shader: vs_bloom
+        Fragment Shader: fs_bloom
+        Attributes:
+            ATTR_bloom_position => 0
+            ATTR_bloom_uv => 1
+    Bindings:
+        Uniform block 'bloom_params':
+            Jai struct: Bloom_Params
+            Bind slot: UB_bloom_params => 0
+        Image 'bloom_src':
+            Image type: ._2D
+            Sample type: .FLOAT
+            Multisampled: false
+            Bind slot: IMG_bloom_src => 0
+        Sampler 'bloom_src_smp':
+            Type: .FILTERING
+            Bind slot: SMP_bloom_src_smp => 0
+*/
+ATTR_bloom_position :: 0;
+ATTR_bloom_uv :: 1;
+UB_bloom_params :: 0;
+IMG_bloom_src :: 0;
+SMP_bloom_src_smp :: 0;
+Bloom_Params :: struct {
+    bloom_treshold: float;
+    _: [12]u8;
+};
+/*
+    #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_bloom_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,
+    0x69,0x6f,0x6e,0x3b,0x0a,0x6c,0x61,0x79,0x6f,0x75,0x74,0x28,0x6c,0x6f,0x63,0x61,
+    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
+
+    uniform vec4 bloom_params[1];
+    layout(binding = 16) uniform sampler2D bloom_src_bloom_src_smp;
+
+    layout(location = 0) in vec2 texcoord;
+    layout(location = 0) out vec4 frag_color;
+
+    void main()
+    {
+        vec4 _24 = texture(bloom_src_bloom_src_smp, texcoord);
+        vec4 color = _24;
+        if (max(_24.x, max(_24.y, _24.z)) < bloom_params[0].x)
+        {
+            color = vec4(0.0, 0.0, 0.0, 1.0);
+        }
+        frag_color = vec4(color.xyz, 1.0);
+    }
+
+*/
+fs_bloom_source_glsl430 := u8.[
+    0x23,0x76,0x65,0x72,0x73,0x69,0x6f,0x6e,0x20,0x34,0x33,0x30,0x0a,0x0a,0x75,0x6e,
+    0x69,0x66,0x6f,0x72,0x6d,0x20,0x76,0x65,0x63,0x34,0x20,0x62,0x6c,0x6f,0x6f,0x6d,
+    0x5f,0x70,0x61,0x72,0x61,0x6d,0x73,0x5b,0x31,0x5d,0x3b,0x0a,0x6c,0x61,0x79,0x6f,
+    0x75,0x74,0x28,0x62,0x69,0x6e,0x64,0x69,0x6e,0x67,0x20,0x3d,0x20,0x31,0x36,0x29,
+    0x20,0x75,0x6e,0x69,0x66,0x6f,0x72,0x6d,0x20,0x73,0x61,0x6d,0x70,0x6c,0x65,0x72,
+    0x32,0x44,0x20,0x62,0x6c,0x6f,0x6f,0x6d,0x5f,0x73,0x72,0x63,0x5f,0x62,0x6c,0x6f,
+    0x6f,0x6d,0x5f,0x73,0x72,0x63,0x5f,0x73,0x6d,0x70,0x3b,0x0a,0x0a,0x6c,0x61,0x79,
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+    0x69,0x6f,0x6e,0x20,0x3d,0x20,0x30,0x29,0x20,0x6f,0x75,0x74,0x20,0x76,0x65,0x63,
+    0x34,0x20,0x66,0x72,0x61,0x67,0x5f,0x63,0x6f,0x6c,0x6f,0x72,0x3b,0x0a,0x0a,0x76,
+    0x6f,0x69,0x64,0x20,0x6d,0x61,0x69,0x6e,0x28,0x29,0x0a,0x7b,0x0a,0x20,0x20,0x20,
+    0x20,0x76,0x65,0x63,0x34,0x20,0x5f,0x32,0x34,0x20,0x3d,0x20,0x74,0x65,0x78,0x74,
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+    0x6f,0x6f,0x6d,0x5f,0x73,0x72,0x63,0x5f,0x73,0x6d,0x70,0x2c,0x20,0x74,0x65,0x78,
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+    0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x63,0x6f,0x6c,0x6f,0x72,0x20,0x3d,0x20,0x76,
+    0x65,0x63,0x34,0x28,0x30,0x2e,0x30,0x2c,0x20,0x30,0x2e,0x30,0x2c,0x20,0x30,0x2e,
+    0x30,0x2c,0x20,0x31,0x2e,0x30,0x29,0x3b,0x0a,0x20,0x20,0x20,0x20,0x7d,0x0a,0x20,
+    0x20,0x20,0x20,0x66,0x72,0x61,0x67,0x5f,0x63,0x6f,0x6c,0x6f,0x72,0x20,0x3d,0x20,
+    0x76,0x65,0x63,0x34,0x28,0x63,0x6f,0x6c,0x6f,0x72,0x2e,0x78,0x79,0x7a,0x2c,0x20,
+    0x31,0x2e,0x30,0x29,0x3b,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_bloom_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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+    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;
+
+    uniform highp vec4 bloom_params[1];
+    uniform highp sampler2D bloom_src_bloom_src_smp;
+
+    in highp vec2 texcoord;
+    layout(location = 0) out highp vec4 frag_color;
+
+    void main()
+    {
+        highp vec4 _24 = texture(bloom_src_bloom_src_smp, texcoord);
+        highp vec4 color = _24;
+        if (max(_24.x, max(_24.y, _24.z)) < bloom_params[0].x)
+        {
+            color = vec4(0.0, 0.0, 0.0, 1.0);
+        }
+        frag_color = vec4(color.xyz, 1.0);
+    }
+
+*/
+fs_bloom_source_glsl300es := u8.[
+    0x23,0x76,0x65,0x72,0x73,0x69,0x6f,0x6e,0x20,0x33,0x30,0x30,0x20,0x65,0x73,0x0a,
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+    0x30,0x29,0x3b,0x0a,0x20,0x20,0x20,0x20,0x7d,0x0a,0x20,0x20,0x20,0x20,0x66,0x72,
+    0x61,0x67,0x5f,0x63,0x6f,0x6c,0x6f,0x72,0x20,0x3d,0x20,0x76,0x65,0x63,0x34,0x28,
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+    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_bloom_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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+    0x0a,0x0a,0x00,
+];
+/*
+    #include <metal_stdlib>
+    #include <simd/simd.h>
+
+    using namespace metal;
+
+    struct bloom_params
+    {
+        float bloom_treshold;
+    };
+
+    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 bloom_params& _42 [[buffer(0)]], texture2d<float> bloom_src [[texture(0)]], sampler bloom_src_smp [[sampler(0)]])
+    {
+        main0_out out = {};
+        float4 _24 = bloom_src.sample(bloom_src_smp, in.texcoord);
+        float4 color = _24;
+        if (fast::max(_24.x, fast::max(_24.y, _24.z)) < _42.bloom_treshold)
+        {
+            color = float4(0.0, 0.0, 0.0, 1.0);
+        }
+        out.frag_color = float4(color.xyz, 1.0);
+        return out;
+    }
+
+*/
+fs_bloom_source_metal_macos := u8.[
+    0x23,0x69,0x6e,0x63,0x6c,0x75,0x64,0x65,0x20,0x3c,0x6d,0x65,0x74,0x61,0x6c,0x5f,
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+    0x62,0x6c,0x6f,0x6f,0x6d,0x5f,0x73,0x72,0x63,0x20,0x5b,0x5b,0x74,0x65,0x78,0x74,
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+    0x29,0x29,0x20,0x3c,0x20,0x5f,0x34,0x32,0x2e,0x62,0x6c,0x6f,0x6f,0x6d,0x5f,0x74,
+    0x72,0x65,0x73,0x68,0x6f,0x6c,0x64,0x29,0x0a,0x20,0x20,0x20,0x20,0x7b,0x0a,0x20,
+    0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x63,0x6f,0x6c,0x6f,0x72,0x20,0x3d,0x20,0x66,
+    0x6c,0x6f,0x61,0x74,0x34,0x28,0x30,0x2e,0x30,0x2c,0x20,0x30,0x2e,0x30,0x2c,0x20,
+    0x30,0x2e,0x30,0x2c,0x20,0x31,0x2e,0x30,0x29,0x3b,0x0a,0x20,0x20,0x20,0x20,0x7d,
+    0x0a,0x20,0x20,0x20,0x20,0x6f,0x75,0x74,0x2e,0x66,0x72,0x61,0x67,0x5f,0x63,0x6f,
+    0x6c,0x6f,0x72,0x20,0x3d,0x20,0x66,0x6c,0x6f,0x61,0x74,0x34,0x28,0x63,0x6f,0x6c,
+    0x6f,0x72,0x2e,0x78,0x79,0x7a,0x2c,0x20,0x31,0x2e,0x30,0x29,0x3b,0x0a,0x20,0x20,
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+    0x0a,0x00,
+];
+bloom_shader_desc :: (backend: sg_backend) -> sg_shader_desc {
+    desc: sg_shader_desc;
+    desc.label = "bloom_shader";
+    if backend == {
+    case .GLCORE;
+        desc.vertex_func.source = xx *vs_bloom_source_glsl430;
+        desc.vertex_func.entry = "main";
+        desc.fragment_func.source = xx *fs_bloom_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[0].stage = .FRAGMENT;
+        desc.uniform_blocks[0].layout = .STD140;
+        desc.uniform_blocks[0].size = 16;
+        desc.uniform_blocks[0].glsl_uniforms[0].type = .FLOAT4;
+        desc.uniform_blocks[0].glsl_uniforms[0].array_count = 1;
+        desc.uniform_blocks[0].glsl_uniforms[0].glsl_name = "bloom_params";
+        desc.images[0].stage = .FRAGMENT;
+        desc.images[0].multisampled = false;
+        desc.images[0].image_type = ._2D;
+        desc.images[0].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 = 0;
+        desc.image_sampler_pairs[0].sampler_slot = 0;
+        desc.image_sampler_pairs[0].glsl_name = "bloom_src_bloom_src_smp";
+    case .GLES3;
+        desc.vertex_func.source = xx *vs_bloom_source_glsl300es;
+        desc.vertex_func.entry = "main";
+        desc.fragment_func.source = xx *fs_bloom_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[0].stage = .FRAGMENT;
+        desc.uniform_blocks[0].layout = .STD140;
+        desc.uniform_blocks[0].size = 16;
+        desc.uniform_blocks[0].glsl_uniforms[0].type = .FLOAT4;
+        desc.uniform_blocks[0].glsl_uniforms[0].array_count = 1;
+        desc.uniform_blocks[0].glsl_uniforms[0].glsl_name = "bloom_params";
+        desc.images[0].stage = .FRAGMENT;
+        desc.images[0].multisampled = false;
+        desc.images[0].image_type = ._2D;
+        desc.images[0].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 = 0;
+        desc.image_sampler_pairs[0].sampler_slot = 0;
+        desc.image_sampler_pairs[0].glsl_name = "bloom_src_bloom_src_smp";
+    case .METAL_MACOS;
+        desc.vertex_func.source = xx *vs_bloom_source_metal_macos;
+        desc.vertex_func.entry = "main0";
+        desc.fragment_func.source = xx *fs_bloom_source_metal_macos;
+        desc.fragment_func.entry = "main0";
+        desc.attrs[0].base_type = .FLOAT;
+        desc.attrs[1].base_type = .FLOAT;
+        desc.uniform_blocks[0].stage = .FRAGMENT;
+        desc.uniform_blocks[0].layout = .STD140;
+        desc.uniform_blocks[0].size = 16;
+        desc.uniform_blocks[0].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.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 = 0;
+        desc.image_sampler_pairs[0].sampler_slot = 0;
+    }
+    return desc;
+}

src/shaders/shader_bloom.glsl

@@ -0,0 +1,32 @@
+@vs vs_bloom
+in vec2 position;
+in vec2 uv;
+
+out vec2 texcoord;
+
+void main() {
+    gl_Position = vec4(position, 0.5, 1.0);
+    texcoord = uv;
+}
+@end
+
+@fs fs_bloom
+in vec2 texcoord;
+out vec4 frag_color;
+
+layout(binding=0) uniform bloom_params {
+    float bloom_treshold;
+};
+
+layout(binding = 0) uniform texture2D bloom_src;
+layout(binding = 0) uniform sampler bloom_src_smp;
+
+void main() {
+    vec4 color = texture(sampler2D(bloom_src, bloom_src_smp), texcoord);
+    float value = max(color.r, max(color.g, color.b));
+    if(value < bloom_treshold) { color = vec4(0.0, 0.0, 0.0, 1.0); }
+    frag_color = vec4(color.rgb, 1.0);
+}
+@end
+
+@program bloom vs_bloom fs_bloom

src/shaders/shader_post_process_main.glsl

@@ -18,6 +18,8 @@ layout(binding = 0) uniform texture2D pptex;
 layout(binding = 0) uniform sampler ppsmp;
 layout(binding = 1) uniform texture2D lut;
 layout(binding = 1) uniform sampler lut_linear;
+layout(binding = 2) uniform texture2D bloom_tex;
+layout(binding = 2) uniform sampler bloom_smp;
 
 layout(binding=0) uniform post_process_config {
     float exposure;
@@ -34,6 +36,7 @@ layout(binding=0) uniform post_process_config {
     float barrel_distortion_intensity;
     int   lut_mode;
     float dither_intensity;
+    float bloom_amount;
 };
 
 vec3 aces(vec3 x) {
@@ -85,8 +88,8 @@ void main() {
     float b = texture(sampler2D(pptex, ppsmp), distorted_texcoord - vec2(chromatic_aberration_intensity, 0.0)).b;
     vec3 sampled_color_hdr = vec4(r, g, b, 1.0).rgb;
 
-    
+    vec3 bloom_color = texture(sampler2D(bloom_tex, bloom_smp), distorted_texcoord).rgb;
-    vec3 color_hdr = sampled_color_hdr * exposure;
+    vec3 color_hdr = (sampled_color_hdr + bloom_color * bloom_amount) * exposure;
 
     vec3 color_ldr_linear;
     if(tonemap > 0.5) {

src/shaders/shader_sky.glsl

@@ -62,18 +62,6 @@ float noise(vec3 x)
     mix(hash(n + 270.0), hash(n + 271.0), f.x), f.y), f.z);
 }
 
-const mat3 m = mat3(0.0, 1.60,  1.20, -1.6, 0.72, -0.96, -1.2, -0.96, 1.28);
-float fbm(vec3 p)
-{
-    float f = 0.0;
-    f += noise(p) / 2.0; p = m * p * 1.1;
-    f += noise(p) / 4.0; p = m * p * 1.2;
-    f += noise(p) / 6.0; p = m * p * 1.3;
-    f += noise(p) / 12.0; p = m * p * 1.4;
-    f += noise(p) / 24.0;
-    return f;
-}
-
 vec3 sky(vec3 skypos, vec3 sunpos) {
 
     vec3 sunCol = sunDisk.xyz;
@@ -111,13 +99,6 @@ vec3 sky(vec3 skypos, vec3 sunpos) {
     final += mix(horizonHalo.xyz, vec3(0.0,0.0,0.0), clamp(abs(npos.y) * 20.0, 0.0, 1.0)) * 0.8;
 
     final = vec3(final);
-
-    // Cirrus Clouds
-    if(hasClouds == 1) { 
-        float density = smoothstep(1.0 - cirrus, 1.0, fbm(npos.xyz / npos.y * 2.0 + time * 0.05)) * 0.3;
-        final.rgb = mix(final.rgb, vec3(1.0, 1.0, 1.0), max(0.0, npos.y) * density * 2.0);
-    }
-
     return final;
 }
 

src/shaders/shader_trile.glsl

@@ -13,16 +13,16 @@ layout(binding=0) uniform trile_vs_params {
 
 out vec3 cam;
 out vec3 to_center;
-out vec3 vpos; // The actual position;
+out vec3 vpos;
-out vec3 ipos; // Trile space position;
+out vec3 ipos;
 out vec4 fnormal;
-out vec3 orig_normal; // Unrotated object-space normal, used for trixel lookup
+out vec3 orig_normal;
 out vec3 trileCenter;
 out vec3 cv;
 
 mat3 rot_x(float a) { float c=cos(a),s=sin(a); return mat3(1,0,0, 0,c,-s, 0,s,c); }
-mat3 rot_z(float a) { float c=cos(a),s=sin(a); return mat3(c,-s,0, s,c,0, 0,0,1); }
 mat3 rot_y(float a) { float c=cos(a),s=sin(a); return mat3(c,0,s, 0,1,0, -s,0,c); }
+mat3 rot_z(float a) { float c=cos(a),s=sin(a); return mat3(c,-s,0, s,c,0, 0,0,1); }
 
 mat3 get_orientation_matrix(int ori) {
     int face  = ori / 4;
@@ -46,8 +46,8 @@ void main() {
 
     gl_Position = mvp * vec4(rotated + instance.xyz, 1.0);
     fnormal     = vec4(rot * normal.xyz, 0.0);
-    orig_normal = normal.xyz;                    // unrotated, for trixel lookup
+    orig_normal = normal.xyz;
-    to_center   = centre.xyz - position.xyz;     // unrotated, for trixel lookup
+    to_center   = centre.xyz - position.xyz;
     vpos        = rotated + instance.xyz;
     ipos        = position.xyz;
     cam         = camera;
@@ -117,20 +117,20 @@ layout(binding = 4) uniform texture2D rdm_atlas;
 layout(binding = 5) uniform texture2D brdf_lut;
 layout(binding = 3) uniform sampler rdmsmp;
 
-const float PI = 3.1412854;
+const float PI = 3.1415927;
 
-// --- SKY START ---
+const float ROUGHNESS_RAYMARCH_MAX = 0.2; // Below this roughness, actually try to get sharp reflection from RDM.
+const float ROUGHNESS_SPEC_CUTOFF = 0.7;  // Above this roughness, disregard RDM specular lighting entirely.
+
+// ---- SKY ----
 
 const float cirrus = 0.5;
-const float cumulus = 20.0;
 
-float hash(float n)
+float hash(float n) {
-{
     return fract(sin(n) * 43758.5453123);
 }
 
-float noise(vec3 x)
+float noise(vec3 x) {
-{
     vec3 f = fract(x);
     float n = dot(floor(x), vec3(1.0, 157.0, 113.0));
     return mix(mix(mix(hash(n +   0.0), hash(n +   1.0), f.x),
@@ -139,94 +139,46 @@ float noise(vec3 x)
                    mix(hash(n + 270.0), hash(n + 271.0), f.x), f.y), f.z);
 }
 
-const mat3 m = mat3(0.0, 1.60,  1.20, -1.6, 0.72, -0.96, -1.2, -0.96, 1.28);
+const mat3 fbm_m = mat3(0.0, 1.60, 1.20, -1.6, 0.72, -0.96, -1.2, -0.96, 1.28);
-float fbm(vec3 p)
-{
-    float f = 0.0;
-    f += noise(p) / 2.0; p = m * p * 1.1;
-    f += noise(p) / 4.0; p = m * p * 1.2;
-    f += noise(p) / 6.0; p = m * p * 1.3;
-    f += noise(p) / 12.0; p = m * p * 1.4;
-    f += noise(p) / 24.0;
-    return f;
-}
-
-vec3 filmic_aces(vec3 v)
-{
-    v = v * mat3(
-        0.59719f, 0.35458f, 0.04823f,
-        0.07600f, 0.90834f, 0.01566f,
-        0.02840f, 0.13383f, 0.83777f
-    );
-    return (v * (v + 0.0245786f) - 9.0537e-5f) /
-        (v * (0.983729f * v + 0.4329510f) + 0.238081f) * mat3(
-        1.60475f, -0.53108f, -0.07367f,
-        -0.10208f,  1.10813f, -0.00605f,
-        -0.00327f, -0.07276f,  1.07602f
-    );
-}
 
 vec3 sky(vec3 skypos, vec3 sunpos) {
-
-    vec3 sunCol = sunDisk.xyz;
-    vec3 baseSky = skyBase.xyz;
-    vec3 topSky = skyTop.xyz;
-
-    float sDist = dot(normalize(skypos), normalize(sunpos));
-
     vec3 npos = normalize(skypos);
+    float sDist = dot(npos, normalize(sunpos));
 
+    vec3 skyGradient = mix(skyBase, skyTop, clamp(npos.y * 2.0, 0.0, 0.7));
+    vec3 result = skyGradient;
 
-    vec3 skyGradient = mix(baseSky, topSky, clamp(skypos.y * 2.0, 0.0, 0.7));
+    result += sunHalo * clamp((sDist - 0.95) * 10.0, 0.0, 0.8) * 0.2;
 
-    vec3 final = skyGradient;
+    if (sDist > 0.9999)
-    final += sunHalo.xyz * clamp((sDist - 0.95) * 10.0, 0.0, 0.8) * 0.2;
+        result = sunDisk;
 
-    // Sun disk
+    result += mix(horizonHalo, vec3(0.0), clamp(abs(npos.y) * 80.0, 0.0, 1.0)) * 0.1;
-    if(sDist > 0.9999) {
+    return result;
-        final = sunDisk.xyz;
 }
 
-    // Horizon halo
+vec3 sky_reflect(vec3 R, vec3 sunpos) {
-    final += mix(horizonHalo.xyz, vec3(0.0,0.0,0.0), clamp(abs(npos.y) * 80.0, 0.0, 1.0)) * 0.1;
+    if (R.y < 0.0) R = reflect(R, vec3(0.0, 1.0, 0.0));
-
+    return sky(R, sunpos);
-    final = vec3(final);
-
-    // Cirrus Clouds
-    if(hasClouds == 1) {
-        float density = smoothstep(1.0 - cirrus, 1.0, fbm(npos.xyz / npos.y * 2.0 + time * 0.05)) * 0.3;
-        final.rgb = mix(final.rgb, vec3(1.0, 1.0, 1.0), max(0.0, npos.y) * density * 2.0);
 }
 
-    return final;
+// ---- PBR ----
-}
-
-// ---- PBR FUNCTIONS ----
 
 float DistributionGGX(vec3 N, vec3 H, float roughness) {
     float a  = roughness * roughness;
     float a2 = a * a;
     float NdotH = max(dot(N, H), 0.0);
-    float NdotH2 = NdotH*NdotH;
+    float denom = NdotH * NdotH * (a2 - 1.0) + 1.0;
-    float num   = a2;
+    return a2 / (PI * denom * denom);
-    float denom = (NdotH2 * (a2 - 1.0) + 1.0);
-    denom = PI * denom * denom;
-    return num / denom;
-}
-
-float GeometrySchlickGGX(float NdotV, float roughness) {
-    float r = (roughness + 1.0);
-    float k = (r*r) / 8.0;
-    float num   = NdotV;
-    float denom = NdotV * (1.0 - k) + k;
-    return num / denom;
 }
 
 float GeometrySmith(vec3 N, vec3 V, vec3 L, float roughness) {
+    float r = roughness + 1.0;
+    float k = (r * r) / 8.0;
     float NdotV = max(dot(N, V), 0.0);
     float NdotL = max(dot(N, L), 0.0);
-    float ggx2  = GeometrySchlickGGX(NdotV, roughness);
+    float ggx1 = NdotL / (NdotL * (1.0 - k) + k);
-    float ggx1  = GeometrySchlickGGX(NdotL, roughness);
+    float ggx2 = NdotV / (NdotV * (1.0 - k) + k);
     return ggx1 * ggx2;
 }
 
@@ -238,176 +190,115 @@ vec3 FresnelSchlickRoughness(float cosTheta, vec3 F0, float roughness) {
     return F0 + (max(vec3(1.0 - roughness), F0) - F0) * pow(clamp(1.0 - cosTheta, 0.0, 1.0), 5.0);
 }
 
-// ---- RDM FUNCTIONS ----
+// ---- RDM HELPERS ----
 
-float roughness_to_rdm_size(int roughness) {
+// Hemioct encoding (Cigolle2014)
-    return pow(2.0, float((7 - roughness) + 1));
+vec2 rdm_hemioct(vec3 v, int face) {
-}
-
-int rdm_index_from_normal(vec3 N) {
-    vec3 n_leftright = vec3(0.0, 0.0, 1.0);
-    vec3 n_updown = vec3(0.0, 1.0, 0.0);
-    vec3 n_frontback = vec3(1.0, 0.0, 0.0);
-
-    int res = 0;
-    res += int(dot(-n_updown, N) >= 0.98) * 1;
-    res += int(dot(n_leftright, N) >= 0.98) * 2;
-    res += int(dot(-n_leftright, N) >= 0.98) * 3;
-    res += int(dot(n_frontback, N) >= 0.98) * 4;
-    res += int(dot(-n_frontback, N) >= 0.98) * 5;
-
-    return res;
-}
-
-// Taken from Cigolle2014Vector.pdf
-vec2 rdm_get_hemioct(vec3 v, int index, vec2 off) {
     vec3 vc = v;
-    if(index / 2 == 0) {
+    if (face / 2 == 0) { vc.z = v.y; vc.y = v.z; }
-        vc.z = v.y;
+    if (face / 2 == 2) { vc.z = v.x; vc.x = v.z; }
-        vc.y = v.z;
+    if (face % 2 == 1) { vc.z *= -1.0; }
-    }
-    if(index / 2 == 2) {
-        vc.z = v.x;
-        vc.x = v.z;
-    }
-    if(index % 2 == 1) {
-        vc.z *= -1.0;
-    }
-
-    vc.x += off.x;
-    vc.y += off.y;
-
-    normalize(vc);
 
     vec2 p = vc.xy * (1.0 / (abs(vc.x) + abs(vc.y) + vc.z));
-    vec2 res = vec2(p.x + p.y, p.x - p.y);
+    return vec2(p.x + p.y, p.x - p.y) * 0.5 + 0.5;
-    res.x = (res.x + 1.0) * 0.5;
-    res.y = (res.y + 1.0) * 0.5;
-    return res;
 }
 
-float rdm_offset_y(int index) {
+int rdm_face_from_normal(vec3 N) {
-    return float((index / 2)) * (1.0/3.0);
+    vec3 a = abs(N);
+    if (a.y >= a.x && a.y >= a.z) return N.y >= 0.0 ? 0 : 1;
+    if (a.z >= a.x && a.z >= a.y) return N.z >= 0.0 ? 2 : 3;
+    return N.x >= 0.0 ? 4 : 5;
 }
 
-float rdm_offset_x(int index) {
+vec4 rdm_atlas_rect(ivec3 local_pos, int roughness) {
-    return float((index % 2)) * (1.0/2.0);
-}
-
-vec4 rdm_get_atlas_rect(ivec3 local_pos, int roughness) {
     int rdm_index = local_pos.x + local_pos.y * 32 + local_pos.z * 1024 + roughness * 32768;
-    int tx = rdm_index % 512;
+    return texelFetch(sampler2D(rdm_lookup, trilesmp), ivec2(rdm_index % 512, rdm_index / 512), 0);
-    int ty = rdm_index / 512;
-    return texelFetch(sampler2D(rdm_lookup, trilesmp), ivec2(tx, ty), 0);
 }
 
-ivec2 rdm_face_pixel_offset(vec4 atlas_rect, int face, int rdmSize) {
+ivec2 rdm_face_offset(vec4 rect, int face, int rdmSize, ivec2 atlasSize) {
-    ivec2 atlasSize = textureSize(sampler2D(rdm_atlas, rdmsmp), 0);
     int col = face % 2;
     int row = face / 2;
-    int ox = int(atlas_rect.x * float(atlasSize.x)) + col * rdmSize;
+    return ivec2(int(rect.x * float(atlasSize.x)) + col * rdmSize,
-    int oy = int(atlas_rect.y * float(atlasSize.y)) + row * rdmSize;
+                 int(rect.y * float(atlasSize.y)) + row * rdmSize);
-    return ivec2(ox, oy);
 }
 
-vec3 sample_rdm(vec3 N, vec3 V, vec3 rdm_center, vec3 diff, int roughness, ivec3 local_pos) {
+vec2 rdm_face_uv(int face) {
-    int face = rdm_index_from_normal(N);
+    if (face <= 1) return vec2(ipos.x, ipos.z);
-    vec4 atlas_rect = rdm_get_atlas_rect(local_pos, roughness);
+    if (face <= 3) return vec2(ipos.x, ipos.y);
-    if (atlas_rect.z <= 0.0) return vec3(1.0, 0.0, 1.0); // No data - magenta
+    return vec2(ipos.z, ipos.y);
-
-    ivec2 atlasTexSize = textureSize(sampler2D(rdm_atlas, rdmsmp), 0);
-    int rdmSizeInt = int(atlas_rect.z * float(atlasTexSize.x)) / 2;
-    float rdmSize = float(rdmSizeInt);
-
-    ivec2 faceOffset = rdm_face_pixel_offset(atlas_rect, face, rdmSizeInt);
-
-    vec2 uv;
-    if (face == 0 || face == 1) {       // +Y / -Y
-        uv = vec2(ipos.x, ipos.z);
-    } else if (face == 2 || face == 3) { // +Z / -Z
-        uv = vec2(ipos.x, ipos.y);
-    } else {                             // +X / -X
-        uv = vec2(ipos.z, ipos.y);
 }
 
-    vec3 reflected = normalize(reflect(V, N));
+// ---- RDM SPECULAR ----
-
-    if (roughness > 1) {
-        vec3 samplePos = normalize(diff + 2.0 * reflected);
-        vec2 hemiUV = rdm_get_hemioct(samplePos, face, vec2(0.0));
-        vec2 atlasSize = vec2(textureSize(sampler2D(rdm_atlas, rdmsmp), 0));
-        vec2 texUV = (vec2(faceOffset) + hemiUV * rdmSize) / atlasSize;
-        return texture(sampler2D(rdm_atlas, rdmsmp), texUV).rgb;
-    }
 
+vec3 rdm_spec_raymarch(vec3 N, vec3 V, vec3 diff, int face, ivec2 faceOffset, int rdmSize, vec2 atlasInvSize) {
+    vec3 reflected = reflect(V, N);
     float maxDist = 20.0;
     int steps = 40;
+    float stepSize = maxDist / float(steps);
+
     for (int i = 0; i < steps; i++) {
-        float t = maxDist * float(i + 1) / float(steps);
+        float t = stepSize * float(i + 1);
         vec3 samplePos = diff + t * reflected;
         if (dot(samplePos, N) < 0.0) continue;
 
-        vec2 hemiUV = rdm_get_hemioct(normalize(samplePos), face, vec2(0.0));
+        vec3 dir = normalize(samplePos);
-        vec2 atlasSize = vec2(textureSize(sampler2D(rdm_atlas, rdmsmp), 0));
+        vec2 hemiUV = rdm_hemioct(dir, face);
-        vec2 texCoord = (vec2(faceOffset) + hemiUV * rdmSize) / atlasSize;
+        vec2 texCoord = (vec2(faceOffset) + hemiUV * float(rdmSize)) * atlasInvSize;
-        vec4 rdmSample = texture(sampler2D(rdm_atlas, rdmsmp), texCoord, 0);
+        vec4 s = texture(sampler2D(rdm_atlas, rdmsmp), texCoord, 0);
-        float depth = rdmSample.a;
+
         float dist = length(samplePos);
-        float stepSize = maxDist / float(steps);
+        if (s.a > 0.0 && s.a < dist && s.a + stepSize > dist)
-
+            return s.rgb;
-        if (depth > 0.0 && depth < dist && depth + stepSize > dist) {
-            return rdmSample.rgb;
-        }
     }
 
-    vec3 skyDir = reflected;
+    return sky_reflect(reflected, sunPosition);
-    if (skyDir.y < 0.0) skyDir = reflect(skyDir, vec3(0.0, 1.0, 0.0));
-    return sky(skyDir, sunPosition);
 }
 
-vec3 sample_rdm_diff_map(vec3 N, ivec3 local_pos, vec3 fallback) {
+vec3 rdm_spec_single(vec3 N, vec3 V, vec3 diff, int face, ivec2 faceOffset, int rdmSize, vec2 atlasInvSize) {
-    vec4 atlas_rect = rdm_get_atlas_rect(local_pos, 7);
+    vec3 reflected = reflect(V, N);
-    if (atlas_rect.z <= 0.0) return fallback;
+    vec3 sampleDir = normalize(diff + 2.0 * reflected);
-
+    vec2 hemiUV = rdm_hemioct(sampleDir, face);
-    int face = rdm_index_from_normal(N);
+    vec2 texCoord = (vec2(faceOffset) + hemiUV * float(rdmSize)) * atlasInvSize;
-    int rdmSize = int(roughness_to_rdm_size(7));
+    return texture(sampler2D(rdm_atlas, rdmsmp), texCoord).rgb;
-    ivec2 faceOffset = rdm_face_pixel_offset(atlas_rect, face, rdmSize);
-    vec2 pos = rdm_get_hemioct(N, face, vec2(0.0));
-    ivec2 texCoord = ivec2(faceOffset.x + int(pos.x * float(rdmSize)),
-                           faceOffset.y + int(pos.y * float(rdmSize)));
-    return texelFetch(sampler2D(rdm_atlas, rdmsmp), texCoord, 0).rgb;
 }
 
-int isign(float f) {
+vec3 rdm_sample_diff_probe(vec3 N, ivec3 local_pos, vec3 fallback) {
-    return f < 0.0 ? -1 : 1;
+    vec4 rect = rdm_atlas_rect(local_pos, 7);
+    if (rect.z <= 0.0) return fallback;
+
+    int face = rdm_face_from_normal(N);
+    int rdmSize = int(pow(2.0, float((7 - 7) + 1)));
+    ivec2 atlasSize = textureSize(sampler2D(rdm_atlas, rdmsmp), 0);
+    ivec2 fOff = rdm_face_offset(rect, face, rdmSize, atlasSize);
+    vec2 pos = rdm_hemioct(N, face);
+    return texelFetch(sampler2D(rdm_atlas, rdmsmp),
+                      ivec2(fOff.x + int(pos.x * float(rdmSize)),
+                            fOff.y + int(pos.y * float(rdmSize))), 0).rgb;
 }
 
+int isign(float f) { return f < 0.0 ? -1 : 1; }
+
 vec3 smix(vec3 a, vec3 b, float t) {
     float power = 1.6;
-    float smoothT = pow(t, power) / (pow(t, power) + pow(1.0 - t, power));
+    float st = pow(t, power) / (pow(t, power) + pow(1.0 - t, power));
-    return mix(a, b, smoothT);
+    return mix(a, b, st);
 }
 
-vec3 sample_rdm_diff(vec3 N, vec3 diff, ivec3 local_pos) {
+vec3 rdm_indirect_diffuse(vec3 N, vec3 diff, ivec3 local_pos) {
-    int face = rdm_index_from_normal(N);
+    int face = rdm_face_from_normal(N);
-    vec3 ambientPlaceholder = vec3(0.3, 0.3, 0.4);
+    vec3 ambient = vec3(0.3, 0.3, 0.4);
 
-    vec2 delta = vec2(0.0);
+    vec2 delta;
-    if (face == 0 || face == 1) {
+    if      (face <= 1) delta = vec2(diff.x, diff.z);
-        delta = vec2(diff.x, diff.z);
+    else if (face <= 3) delta = vec2(diff.x, diff.y);
-    } else if (face == 2 || face == 3) {
+    else                delta = vec2(diff.z, diff.y);
-        delta = vec2(diff.x, diff.y);
-    } else {
-        delta = vec2(diff.z, diff.y);
-    }
 
-    ivec3 s0 = ivec3(0, 0, 0);
     ivec3 s1, s2, s3;
-    if (face == 0 || face == 1) {
+    if (face <= 1) {
         s1 = ivec3(isign(delta.x), 0, 0);
         s2 = ivec3(0, 0, isign(delta.y));
         s3 = ivec3(isign(delta.x), 0, isign(delta.y));
-    } else if (face == 2 || face == 3) {
+    } else if (face <= 3) {
         s1 = ivec3(isign(delta.x), 0, 0);
         s2 = ivec3(0, isign(delta.y), 0);
         s3 = ivec3(isign(delta.x), isign(delta.y), 0);
@@ -417,18 +308,18 @@ vec3 sample_rdm_diff(vec3 N, vec3 diff, ivec3 local_pos) {
         s3 = ivec3(0, isign(delta.y), isign(delta.x));
     }
 
-    vec3 p0 = sample_rdm_diff_map(N, ivec3(mod(vec3(local_pos + s0), 32.0)), ambientPlaceholder);
+    vec3 p0 = rdm_sample_diff_probe(N, ivec3(mod(vec3(local_pos),          32.0)), ambient);
-    vec3 p1 = sample_rdm_diff_map(N, ivec3(mod(vec3(local_pos + s1), 32.0)), ambientPlaceholder);
+    vec3 p1 = rdm_sample_diff_probe(N, ivec3(mod(vec3(local_pos + s1),     32.0)), ambient);
-    vec3 p2 = sample_rdm_diff_map(N, ivec3(mod(vec3(local_pos + s2), 32.0)), ambientPlaceholder);
+    vec3 p2 = rdm_sample_diff_probe(N, ivec3(mod(vec3(local_pos + s2),     32.0)), ambient);
-    vec3 p3 = sample_rdm_diff_map(N, ivec3(mod(vec3(local_pos + s3), 32.0)), ambientPlaceholder);
+    vec3 p3 = rdm_sample_diff_probe(N, ivec3(mod(vec3(local_pos + s1 + s2),32.0)), ambient);
 
-    return smix(
+    return smix(smix(p0, p1, abs(delta.x)),
-        smix(p0, p1, abs(delta.x)),
                 smix(p2, p3, abs(delta.x)),
-        abs(delta.y)
+                abs(delta.y));
-    );
 }
 
+// ---- HSV ----
+
 vec3 rgb2hsv(vec3 c) {
     vec4 K = vec4(0.0, -1.0/3.0, 2.0/3.0, -1.0);
     vec4 p = mix(vec4(c.bg, K.wz), vec4(c.gb, K.xy), step(c.b, c.g));
@@ -444,140 +335,146 @@ vec3 hsv2rgb(vec3 c) {
     return c.z * mix(K.xxx, clamp(p - K.xxx, 0.0, 1.0), c.y);
 }
 
+// ---- MAIN ----
+
 void main() {
-    if (vpos.y < planeHeight - 0.01 && is_reflection == 1) {
+    if (vpos.y < planeHeight - 0.01 && is_reflection == 1) discard;
-        discard;
-    }
 
-    // Trixel material sampling
+    Get trixel material.
-    vec3 pos_after_adjust = ipos - orig_normal * 0.02;
+    vec3 sample_pos = ipos - orig_normal * 0.02;
-    int count = 0;
     vec4 trixel_material;
-    while (count < 5) {
+    int maxSteps = is_reflection == 1 ? 1 : 3;
-        int xpos = int(clamp(pos_after_adjust.z, 0.0001, 0.99999) * 16.0);
+    for (int i = 0; i < maxSteps; i++) {
-        int ypos = int(clamp(pos_after_adjust.y, 0.0001, 0.99999) * 16.0);
+        ivec2 texel = ivec2(
-        int zpos = int(clamp(pos_after_adjust.x, 0.0001, 0.99999) * 16.0);
+            int(clamp(sample_pos.z, 0.0001, 0.99999) * 16.0),
-
+            int(clamp(sample_pos.y, 0.0001, 0.99999) * 16.0) +
-        trixel_material = texelFetch(sampler2D(triletex, trilesmp), ivec2(xpos, ypos + zpos * 16), 0);
+            int(clamp(sample_pos.x, 0.0001, 0.99999) * 16.0) * 16
-        if (length(trixel_material) > 0.01) break;
+        );
-        pos_after_adjust += to_center * 0.1;
+        trixel_material = texelFetch(sampler2D(triletex, trilesmp), texel, 0);
-        count++;
+        if (dot(trixel_material, trixel_material) > 0.0001) break;
+        sample_pos += to_center * 0.1;
     }
 
-    vec3 albedo = trixel_material.xyz;
+    vec3 albedo = vec3(1.0, 1.0, 1.0);
-    int packedMaterial = int(round(trixel_material.w * 255.0));
+
+    int packed = int(round(trixel_material.w * 255.0));
     float emittance    = 0.0;
-    int   roughnessInt = 0;
+    int   roughnessInt = 7;
-    float roughness  = 0.05;
+    float roughness    = 1.0;
     float metallic     = 0.0;
-    if ((packedMaterial & 0x1) != 0) {
+
-        emittance = float((packedMaterial >> 1) & 0x7F) / 127.0;
+    if ((packed & 0x1) != 0) {
+        emittance = float((packed >> 1) & 0x7F) / 127.0;
     } else {
-        roughnessInt = (packedMaterial >> 5) & 0x7;
+        roughnessInt = (packed >> 5) & 0x7;
         roughness    = max(float(roughnessInt) / 7.0, 0.05);
-        metallic     = float((packedMaterial >> 3) & 0x3) / 3.0;
+        metallic     = float((packed >> 3) & 0x3) / 3.0;
     }
 
-    // Snap normal to nearest axis to avoid interpolation noise
+    // Avoid noise in normals which appears for some reason.
     vec3 absN = abs(fnormal.xyz);
     vec3 N;
-    if (absN.x >= absN.y && absN.x >= absN.z) {
+    if      (absN.x >= absN.y && absN.x >= absN.z) N = vec3(sign(fnormal.x), 0.0, 0.0);
-        N = vec3(sign(fnormal.x), 0.0, 0.0);
+    else if (absN.y >= absN.x && absN.y >= absN.z) N = vec3(0.0, sign(fnormal.y), 0.0);
-    } else if (absN.y >= absN.x && absN.y >= absN.z) {
+    else                                            N = vec3(0.0, 0.0, sign(fnormal.z));
-        N = vec3(0.0, sign(fnormal.y), 0.0);
+
-    } else {
+    // Simplified lighting evaluation for planar reflection.
-        N = vec3(0.0, 0.0, sign(fnormal.z));
+    if (is_reflection == 1) {
+        vec3 L = normalize(sunPosition);
+        float NdotL = max(dot(N, L), 0.0);
+        frag_color = vec4(albedo * (NdotL * sunLightColor * sunIntensity + 0.1), 1.0);
+        return;
     }
 
-    vec3 V = normalize(cam - vpos.xyz);
+    // Evaluate direct light.
+    vec3 V = normalize(cam - vpos);
     vec3 L = normalize(sunPosition);
     vec3 H = normalize(V + L);
+    float NdotL = max(dot(N, L), 0.0);
+    float NdotV = max(dot(N, V), 0.0);
+    float HdotV = max(dot(H, V), 0.0);
 
-    vec3 F0 = vec3(0.04);
+    vec3 F0 = mix(vec3(0.04), albedo, metallic);
-    F0 = mix(F0, albedo, metallic);
+    vec3 F  = fresnelSchlick(HdotV, F0);
-    vec3 F = fresnelSchlick(max(dot(H, V), 0.0), F0);
     float NDF = DistributionGGX(N, H, roughness);
     float G   = GeometrySmith(N, V, L, roughness);
-    vec3 numerator = NDF * G * F;
-    float denominator = 4.0 * max(dot(N, V), 0.0) * max(dot(N, L), 0.0) + 0.0001;
-    vec3 specular = numerator / denominator;
-    float NdotL = max(dot(N, L), 0.0);
-    vec3 kD = vec3(1.0) - F;
-    kD *= 1.0 - metallic;
 
-    // Shadow
+    vec3 specular = (NDF * G * F) / (4.0 * NdotV * NdotL + 0.0001);
-    vec4 light_proj_pos = mvp_shadow * vec4(floor(vpos.xyz * 16.0) / 16.0, 1.0);
+    vec3 kD = (1.0 - F) * (1.0 - metallic);
-    vec3 light_pos = light_proj_pos.xyz / light_proj_pos.w;
-    light_pos = light_pos * 0.5 + 0.5;
-    light_pos.z -= 0.001;
-    float shadowp = texture(sampler2DShadow(shadowtex, shadowsmp), light_pos);
 
-    // Direct lighting
+    // Shadow lookup.
-    vec3 light = shadowp * (kD * albedo / PI + specular) * NdotL * sunLightColor * sunIntensity;
+    vec4 light_proj = mvp_shadow * vec4(floor(vpos * 16.0) / 16.0, 1.0);
+    vec3 light_ndc  = light_proj.xyz / light_proj.w * 0.5 + 0.5;
+    light_ndc.z -= 0.001;
+    float shadow = texture(sampler2DShadow(shadowtex, shadowsmp), light_ndc);
 
-    // RDM indirect lighting
+    vec3 light = shadow * (kD * albedo / PI + specular) * NdotL * sunLightColor * sunIntensity;
-    vec3 hemispherePos = trileCenter + N * 0.49;
+
+    // --- Indirect lighting ---
     ivec3 local = ivec3(mod(floor(trileCenter), 32.0));
-    vec4 atlas_rect_check = rdm_get_atlas_rect(local, roughnessInt);
+    vec4 atlas_rect = rdm_atlas_rect(local, roughnessInt);
-    float ssao_sample = texture(sampler2D(ssaotex, trilesmp), vec2(gl_FragCoord.x / float(screen_w), gl_FragCoord.y / float(screen_h)), 0).r;
+    float ssao = texture(sampler2D(ssaotex, rdmsmp),
+                         gl_FragCoord.xy / vec2(float(screen_w), float(screen_h))).r;
 
-    // Emissive — self-lit, not shadowed.
     vec3 emissive = albedo * emittance * emissive_scale;
 
-    if (rdm_enabled == 1 && atlas_rect_check.z > 0.0) {
+    if (rdm_enabled == 100 && atlas_rect.z > 0.0) {
-        vec3 Frough = FresnelSchlickRoughness(max(dot(N, V), 0.0), F0, roughness);
+        vec3 Frough = FresnelSchlickRoughness(NdotV, F0, roughness);
+        vec3 hemispherePos = trileCenter + N * 0.49;
+        vec3 diff = vpos - hemispherePos;
 
         // Indirect specular
-        vec3 indirectSpec = sample_rdm(N, -cv,
+        if (roughness < ROUGHNESS_SPEC_CUTOFF) {
-            hemispherePos, vpos - hemispherePos, roughnessInt, local) * rdm_tint;
+            int face = rdm_face_from_normal(N);
+            ivec2 atlasSize = textureSize(sampler2D(rdm_atlas, rdmsmp), 0);
+            vec2 atlasInvSize = 1.0 / vec2(atlasSize);
+            int rdmSize = int(atlas_rect.z * float(atlasSize.x)) / 2;
+            ivec2 fOff = rdm_face_offset(atlas_rect, face, rdmSize, atlasSize);
 
-        // For metallic surfaces: desaturate the reflection so Frough (which uses albedo
+            vec3 indirectSpec;
-        // as F0 for metals) applies the metal tint cleanly without double-tinting.
+            if (roughness < ROUGHNESS_RAYMARCH_MAX) {
+                indirectSpec = rdm_spec_raymarch(N, -cv, diff, face, fOff, rdmSize, atlasInvSize);
+            } else {
+                indirectSpec = rdm_spec_single(N, -cv, diff, face, fOff, rdmSize, atlasInvSize);
+            }
+            indirectSpec *= rdm_tint;
+
+            // Desaturate for metals to avoid double-tinting
             float specLum = dot(indirectSpec, vec3(0.2126, 0.7152, 0.0722));
             indirectSpec = mix(indirectSpec, vec3(specLum), metallic);
 
-        vec2 envBRDF = texture(sampler2D(brdf_lut, rdmsmp), vec2(max(dot(N, V), 0.0), roughness)).rg;
+            vec2 envBRDF = texture(sampler2D(brdf_lut, rdmsmp), vec2(NdotV, roughness)).rg;
-        float NdotV_s = max(dot(N, V), 0.0);
             float roughnessBell    = 1.0 - 0.7 * sin(roughness * PI);
-        float grazingSuppress = 1.0 - 0.9 * roughness * sin(roughness * PI) * pow(1.0 - NdotV_s, 2.0);
+            float grazingSuppress  = 1.0 - 0.9 * roughness * sin(roughness * PI) * pow(1.0 - NdotV, 2.0);
             float specRoughFade   = 1.0 - clamp((roughness - 0.5) / 0.3, 0.0, 1.0);
-        light += indirectSpec * (Frough * envBRDF.x + envBRDF.y) * rdm_spec_scale * roughnessBell * grazingSuppress * specRoughFade;
 
-        // Indirect diffuse (interpolated from neighbor probes)
+            light += indirectSpec * (Frough * envBRDF.x + envBRDF.y)
-        vec3 indirectDiff = sample_rdm_diff(N, vpos - hemispherePos, local) * rdm_tint;
+                   * rdm_spec_scale * roughnessBell * grazingSuppress * specRoughFade;
+        }
+
+        // Indirect diffuse
+        vec3 indirectDiff = rdm_indirect_diffuse(N, diff, local) * rdm_tint;
         float diffLuma = dot(indirectDiff, vec3(0.2126, 0.7152, 0.0722));
         indirectDiff = mix(vec3(diffLuma), indirectDiff, rdm_diff_saturation);
-        vec3 kDiff = 1.0 - Frough;
+        vec3 kDiff = (1.0 - Frough) * (1.0 - metallic);
-        kDiff *= 1.0 - metallic;
+
-        light += (kDiff * indirectDiff / PI * albedo) * ssao_sample * rdm_diff_scale;
+        light += kDiff * indirectDiff / PI * albedo * ssao * rdm_diff_scale;
-        if (rdm_diff_scale < 0.001) {
+
-            light += ambient_color * ambient_intensity * albedo * ssao_sample;
+        // Ambient floor
-        }
+        if (rdm_diff_scale < 0.001 || length(light) < ambient_intensity)
-        if (length(light) < ambient_intensity) {
+            light += ambient_color * max(ambient_intensity - length(light), 0.0) * albedo * ssao;
-            light += ambient_color * (ambient_intensity - length(light)) * albedo * ssao_sample;
+
-        }
     } else {
-        // Fallback: ambient + sky reflection when no RDM data (or RDM disabled).
+        light += ambient_color * ambient_intensity * albedo * ssao;
-        light += ambient_color * ambient_intensity * albedo * ssao_sample;
         vec3 R = reflect(-V, N);
-        if (R.y < 0.0) R = reflect(R, vec3(0.0, 1.0, 0.0));
+        light += F * sky_reflect(R, sunPosition) * 0.1;
-        light += F * sky(R, sunPosition) * 0.1;
     }
 
     vec3 final_color = light + emissive;
-    if (hsv_lighting == 1) {
-        float albedo_lum = dot(albedo, vec3(0.2126, 0.7152, 0.0722)) + 0.001;
-        float light_lum  = dot(final_color, vec3(0.2126, 0.7152, 0.0722));
-        vec3 hsv = rgb2hsv(albedo);
-        hsv.z = clamp(hsv.z * (light_lum / albedo_lum), 0.0, 1.0);
-        final_color = hsv2rgb(hsv);
-    }
     frag_color = vec4(mix(deepColor, final_color, smoothstep(0.0, planeHeight, vpos.y)), 1.0);
-    if (is_preview == 1) {
+
-        frag_color.rgb = mix(frag_color.rgb, vec3(0.3, 0.7, 1.0), 0.5);
+    if      (is_preview == 1) frag_color.rgb = mix(frag_color.rgb, vec3(0.3, 0.7, 1.0), 0.5);
-    } else if (is_preview == 2) {
+    else if (is_preview == 2) frag_color.rgb = mix(frag_color.rgb, vec3(1.0, 0.3, 0.2), 0.5);
-        frag_color.rgb = mix(frag_color.rgb, vec3(1.0, 0.3, 0.2), 0.5);
-    }
 }
 @end