work on some water

game/game.jai

@@ -2,7 +2,9 @@
 
 cam : Camera = .{
 	far = 2000.0,
-	near = 1.0
+	near = 1.0,
+	target = .{0.0, 0.0, 0.0},
+	position = .{10.0, 10.0, 10.0}
 };
 
 #scope_export

src/pipelines.jai

@@ -281,11 +281,35 @@ create_sky_pipeline :: () {
     gPipelines.sky.bind.vertex_buffers[0] = sg_make_buffer(*vbuffer);
 }
 
+create_plane_pipeline_reflection_image :: (binding: *sg_bindings) {
+    reflection_img := sg_alloc_image();
+    w, h := get_window_size();
+    sg_init_image(*reflection_img, *(sg_image_desc.{
+        width = w,
+        height = h,
+        pixel_format = sg_pixel_format.RGBA8,
+        render_target = true
+    }));
+    binding.images[0] = reflection_img;
+    
+    depth_img_desc := sg_image_desc.{
+        render_target = true,
+        width = w,
+        height = h,
+        pixel_format = sg_pixel_format.DEPTH_STENCIL,
+        label = "depth-target-image"
+    };
+
+    offscreen_depth_image := sg_make_image(*depth_img_desc);
+    
+}
+
 create_plane_pipeline :: () {
     pipeline: sg_pipeline_desc;
     shader_desc := plane_shader_desc(sg_query_backend());
     pipeline.shader = sg_make_shader(*shader_desc);
     pipeline.layout.buffers[0].stride = 4*3;
+
     
     pipeline.layout.attrs[ATTR_plane_position] = .{ format = .FLOAT3, buffer_index = 0 };
     pipeline.index_type = .UINT16;
@@ -325,6 +349,7 @@ create_plane_pipeline :: () {
 
     gPipelines.plane.bind.index_buffer      = sg_make_buffer(*ibuffer);
     gPipelines.plane.bind.vertex_buffers[0] = sg_make_buffer(*vbuffer);
+    create_plane_pipeline_reflection_image(*gPipelines.plane.bind);
 }
 
 create_arbtri_pipeline :: () {
@@ -358,4 +383,5 @@ create_arbtri_pipeline :: () {
         min_filter = .NEAREST,
         mag_filter = .NEAREST,
     }));
+
 }

src/shaders/shader_plane.glsl

@@ -13,7 +13,7 @@ out flat int idx;
 
 void main() {
     vec3 multisize = vec3(position.xyz * 1000.0);
-    gl_Position = mvp * (vec4(multisize.x, 0.0 + float(gl_InstanceIndex) * 0.003, multisize.z, 1.0));
+    gl_Position = mvp * (vec4(multisize.x, 0.0 + float(gl_InstanceIndex) * 0.006, multisize.z, 1.0));
     pos = position;
     idx = gl_InstanceIndex;
 }
@@ -57,6 +57,8 @@ layout(binding=1) uniform plane_world_config {
     int planeType;
 
     float time;
+
+    float grassDensity;
 };
 
 #define hash(p)  fract(sin(dot(p, vec2(11.9898, 78.233))) * 43758.5453)
@@ -101,7 +103,7 @@ void main() {
     if(planeType == 1) {
         frag_color = vec4(0.0, 0.0, 1.0, 1.0);
     } else {
-        float density = 80000.0;
+        float density = grassDensity;
         vec2 densifiedCoordinate = pos.xz * density;
         densifiedCoordinate.x += sin(densifiedCoordinate.y);
         densifiedCoordinate.y += sin(densifiedCoordinate.x);
@@ -109,12 +111,18 @@ void main() {
         
         float noiseval_fine = noise(densifiedCoordinate / 50.0);
         float noiseval_coarse = noise(densifiedCoordinate / 500.0);
+        float noiseval_plantti = noise(densifiedCoordinate / 500.0);
+        if(noiseval_plantti < 0.9) {
+            noiseval_plantti = 0.0;
+        } else {
+            noiseval_plantti = (noiseval_plantti - 0.9) * 10.0;
+        }
 
         float h = (1.0 / 128.0) * idx;
         float rand = (B(ruohokeskus) + sin(pos.x) * 0.4) * 0.5;
         rand += noiseval_coarse * 0.4 + noiseval_fine * 0.1;
 
-        ruohokeskus.x += sin(time * 1.2) * 0.6 * h;
+        ruohokeskus.x += sin(time * 1.2) * 0.5 * h;
         
         float distanceFromCenter = length(ruohokeskus - (densifiedCoordinate));
         
@@ -130,11 +138,10 @@ void main() {
          if(idx > 0 && (rand - h) * thickness < distanceFromCenter) {
              discard;   
          } else {
-             frag_color = vec4(noiseval_coarse * 0.5, min(1.0, h + 0.2) + noiseval_fine * 0.2, 0.0, 1.0);
+             vec4 grass_color = vec4(noiseval_coarse * 0.5, min(1.0, h + 0.2) + noiseval_fine * 0.2, 0.1, 1.0);
+             vec4 plantti_color = vec4(h, h * 0.3, 0.0, 1.0);
+             frag_color = mix(grass_color, plantti_color, noiseval_plantti);
          }
-        
-        
-        
     }
 }
 @end

src/shaders/shader_sky.glsl

@@ -17,6 +17,7 @@ void main() {
 @end
 
 @fs fs_sky
+
 layout(binding=1) uniform sky_world_config {
     vec3 skyBase;
     vec3 skyTop;
@@ -35,6 +36,8 @@ layout(binding=1) uniform sky_world_config {
     int planeType;
 
     float time;
+
+    float grassDensity;
 };
 
 in vec4 pos;

src/shaders/shader_trile.glsl

@@ -46,6 +46,8 @@ layout(binding=1) uniform trile_world_config {
     int planeType;
 
     float time;
+
+    float grassDensity;
 };
 
 in vec3 cam;

src/shaders/shader_trixel.glsl

@@ -45,6 +45,8 @@ layout(binding=1) uniform trixel_world_config {
     int planeType;
 
     float time;
+
+    float grassDensity;
 };
 
 in vec4 color;

src/world.jai

@@ -14,7 +14,9 @@ World_Config :: struct {
 
     hasPlane      : s32  = 0; @Slider,0,1,1
     planeHeight   : float = 0.0; @Slider,-100,100,1
-    planeType     : s32   = 0; @Slider,0,2,1
+    planeType     : s32   = 1; @Slider,0,1,1
+
+    grassDensity  : float = 40000; @Slider,10000,100000,1000
 }
 
 // Copies over all the fields of our world config into a given shader type.