begin work on shading pass

src/pp/pp_vis/pp_vis.lay

@@ -18,14 +18,15 @@
 @ComputeShader  V_ClearCellsCS
 @ComputeShader  V_ClearParticlesCS
 @ComputeShader  V_BackdropCS
-@VertexShader   V_DQuadVS
-@PixelShader    V_DQuadPS
+@VertexShader   V_QuadVS
+@PixelShader    V_QuadPS
+@ComputeShader  V_EmitParticlesCS
+@ComputeShader  V_SimParticlesCS
+@ComputeShader  V_ShadeCS
 @VertexShader   V_DVertVS
 @PixelShader    V_DVertPS
 @VertexShader   V_OverlayVS
 @PixelShader    V_OverlayPS
-@ComputeShader  V_EmitParticlesCS
-@ComputeShader  V_SimParticlesCS
 
 //////////////////////////////
 //- Api

src/pp/pp_vis/pp_vis_core.c

@@ -4245,7 +4245,16 @@ void V_TickForever(WaveLaneCtx *lane)
       }
 
       //////////////////////////////
-      //- Shapes pass
+      //- Shading pass
+
+      G_DumbGlobalMemorySync(frame->cl);
+
+      {
+        G_Compute(frame->cl, V_ShadeCS, V_ThreadGroupSizeFromTexSize(frame->shade_dims));
+      }
+
+      //////////////////////////////
+      //- Debug shapes pass
 
       G_DumbMemoryLayoutSync(frame->cl, draw_target, G_Layout_DirectQueue_RenderTargetWrite);
 

src/pp/pp_vis/pp_vis_gpu.g

@@ -275,20 +275,20 @@ ComputeShader2D(V_BackdropCS, 8, 8)
 //////////////////////////////
 //- Vertex shader
 
-VertexShader(V_DQuadVS, V_DQuadPSInput)
+VertexShader(V_QuadVS, V_QuadPSInput)
 {
   V_GpuParams params = G_Dereference<V_GpuParams>(V_ShaderConst_Params)[0];
-  StructuredBuffer<V_DQuad> quads = G_Dereference<V_DQuad>(params.quads);
+  StructuredBuffer<V_Quad> quads = G_Dereference<V_Quad>(params.quads);
   RWTexture2D<Vec4> target = G_Dereference<Vec4>(params.target_rw);
 
-  V_DQuad quad = quads[SV_InstanceID];
+  V_Quad quad = quads[SV_InstanceID];
 
   Vec2 rect_uv = RectUvFromVertexId(SV_VertexID);
   // Vec2 tex_uv = lerp(quad.tex_uv0, quad.tex_uv1, rect_uv);
   // Vec2 target_pos = lerp(quad.p0, quad.p1, rect_uv);
   Vec2 target_pos = 0;
 
-  V_DQuadPSInput result;
+  V_QuadPSInput result;
   result.sv_position = Vec4(NdcFromPos(target_pos, countof(target)).xy, 0, 1);
   result.quad_idx = SV_InstanceID;
   return result;
@@ -297,15 +297,15 @@ VertexShader(V_DQuadVS, V_DQuadPSInput)
 //////////////////////////////
 //- Pixel shader
 
-PixelShader(V_DQuadPS, V_DQuadPSOutput, V_DQuadPSInput input)
+PixelShader(V_QuadPS, V_QuadPSOutput, V_QuadPSInput input)
 {
   V_GpuParams params = G_Dereference<V_GpuParams>(V_ShaderConst_Params)[0];
-  StructuredBuffer<V_DQuad> quads = G_Dereference<V_DQuad>(params.quads);
-  V_DQuad quad = quads[input.quad_idx];
+  StructuredBuffer<V_Quad> quads = G_Dereference<V_Quad>(params.quads);
+  V_Quad quad = quads[input.quad_idx];
 
   Vec4 final_color = 0;
 
-  V_DQuadPSOutput output;
+  V_QuadPSOutput output;
   output.sv_target0 = final_color;
   return output;
 }
@@ -461,7 +461,14 @@ ComputeShader(V_SimParticlesCS, 64)
 }
 
 ////////////////////////////////////////////////////////////
-//~ Shapes
+//~ Shade
+
+ComputeShader2D(V_ShadeCS, 8, 8)
+{
+}
+
+////////////////////////////////////////////////////////////
+//~ Debug shapes
 
 //////////////////////////////
 //- Vertex shader

src/pp/pp_vis/pp_vis_gpu.gh

@@ -1,13 +1,13 @@
 ////////////////////////////////////////////////////////////
 //~ Quad shader types
 
-Struct(V_DQuadPSInput)
+Struct(V_QuadPSInput)
 {
   Semantic(Vec4, sv_position);
   Semantic(nointerpolation u32, quad_idx);
 };
 
-Struct(V_DQuadPSOutput)
+Struct(V_QuadPSOutput)
 {
   Semantic(Vec4, sv_target0);
 };
@@ -57,14 +57,17 @@ ComputeShader(V_ClearParticlesCS, 64);
 ComputeShader2D(V_BackdropCS, 8, 8);
 
 //- Quads
-VertexShader(V_DQuadVS, V_DQuadPSInput);
-PixelShader(V_DQuadPS, V_DQuadPSOutput, V_DQuadPSInput input);
+VertexShader(V_QuadVS, V_QuadPSInput);
+PixelShader(V_QuadPS, V_QuadPSOutput, V_QuadPSInput input);
 
 //- Particle simulation
 ComputeShader(V_EmitParticlesCS, 64);
 ComputeShader(V_SimParticlesCS, 64);
 
-//- Shapes
+//- Shade
+ComputeShader2D(V_ShadeCS, 8, 8);
+
+//- Debug shapes
 VertexShader(V_DVertVS, V_DVertPSInput);
 PixelShader(V_DVertPS, V_DVertPSOutput, V_DVertPSInput input);
 

src/pp/pp_vis/pp_vis_shared.cgh

@@ -169,18 +169,22 @@ Struct(V_Particle)
 ////////////////////////////////////////////////////////////
 //~ Quad types
 
-Enum(V_DQuadFlag)
+Enum(V_QuadFlag)
 {
-  V_DQuadFlag_None = 0,
+  V_QuadFlag_None = 0,
 };
 
-Struct(V_DQuad)
+Struct(V_Quad)
 {
-  V_DQuadFlag flags;
+  V_QuadFlag flags;
+
+
+
+  SPR_Slice slice;
 };
 
 ////////////////////////////////////////////////////////////
-//~ Vert types
+//~ Debug vert types
 
 Struct(V_DVert)
 {