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shade stains

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This commit is contained in:
jacob 2026-01-22 13:06:13 -06:00
parent f0ddf19133
commit 6e167ce499
2 changed files with 59 additions and 42 deletions
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2
src/pp/pp_vis/pp_vis_core.c
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@ -2019,7 +2019,7 @@ void V_TickForever(WaveLaneCtx *lane)
if (0)
// if (0)
{
for (P_Ent *bullet = P_FirstEnt(local_frame); !P_IsEntNil(bullet); bullet = P_NextEnt(bullet))
{

99
src/pp/pp_vis/pp_vis_gpu.g
View File

@ -75,6 +75,46 @@ ComputeShader(V_ClearParticlesCS, 64)
}
}
////////////////////////////////////////////////////////////
//~ Quads
//////////////////////////////
//- Vertex shader
VertexShader(V_QuadVS, V_QuadPSInput)
{
V_GpuParams params = G_Dereference<V_GpuParams>(V_ShaderConst_Params)[0];
StructuredBuffer<V_Quad> quads = G_Dereference<V_Quad>(params.quads);
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 screen_pos = lerp(quad.p0, quad.p1, rect_uv);
Vec2 screen_pos = 0;
V_QuadPSInput result;
result.sv_position = Vec4(NdcFromPos(screen_pos, params.screen_dims).xy, 0, 1);
result.quad_idx = SV_InstanceID;
return result;
}
//////////////////////////////
//- Pixel shader
PixelShader(V_QuadPS, V_QuadPSOutput, V_QuadPSInput input)
{
V_GpuParams params = G_Dereference<V_GpuParams>(V_ShaderConst_Params)[0];
StructuredBuffer<V_Quad> quads = G_Dereference<V_Quad>(params.quads);
V_Quad quad = quads[input.quad_idx];
Vec4 final_color = 0;
V_QuadPSOutput output;
output.sv_target0 = final_color;
return output;
}
////////////////////////////////////////////////////////////
//~ Backdrop
@ -285,46 +325,6 @@ ComputeShader(V_ClearParticlesCS, 64)
// }
// }
////////////////////////////////////////////////////////////
//~ Quads
//////////////////////////////
//- Vertex shader
VertexShader(V_QuadVS, V_QuadPSInput)
{
V_GpuParams params = G_Dereference<V_GpuParams>(V_ShaderConst_Params)[0];
StructuredBuffer<V_Quad> quads = G_Dereference<V_Quad>(params.quads);
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 screen_pos = lerp(quad.p0, quad.p1, rect_uv);
Vec2 screen_pos = 0;
V_QuadPSInput result;
result.sv_position = Vec4(NdcFromPos(screen_pos, params.screen_dims).xy, 0, 1);
result.quad_idx = SV_InstanceID;
return result;
}
//////////////////////////////
//- Pixel shader
PixelShader(V_QuadPS, V_QuadPSOutput, V_QuadPSInput input)
{
V_GpuParams params = G_Dereference<V_GpuParams>(V_ShaderConst_Params)[0];
StructuredBuffer<V_Quad> quads = G_Dereference<V_Quad>(params.quads);
V_Quad quad = quads[input.quad_idx];
Vec4 final_color = 0;
V_QuadPSOutput output;
output.sv_target0 = final_color;
return output;
}
////////////////////////////////////////////////////////////
//~ Particle simulation
@ -484,6 +484,8 @@ ComputeShader2D(V_ShadeCS, 8, 8)
RWTexture2D<Vec4> shade_tex = G_Dereference<Vec4>(params.shade_rw);
Texture2D<Vec4> albedo_tex = G_Dereference<Vec4>(params.albedo_ro);
Texture2D<P_TileKind> tiles = G_Dereference<P_TileKind>(params.tiles);
RWTexture2D<Vec4> stains = G_Dereference<Vec4>(params.stains);
RWTexture2D<f32> drynesses = G_Dereference<f32>(params.drynesses);
SamplerState wrap_sampler = G_Dereference(params.pt_wrap_sampler);
Vec2 shade_pos = SV_DispatchThreadID + Vec2(0.5, 0.5);
@ -571,10 +573,22 @@ ComputeShader2D(V_ShadeCS, 8, 8)
}
}
//- Albedo tex color
Vec4 albedo_tex_color = albedo_tex.Load(Vec3(shade_pos, 0));
//- Stain color
Vec4 stain_color = 0;
{
f32 dryness = drynesses.Load(cell_pos);
stain_color = V_DryColor(stains.Load(cell_pos), dryness);
stain_color.rgb *= 1.0 - (0.75 * tile_is_wall); // Darken wall stains
}
//- Composite albedo
albedo = BlendPremul(!tile_is_wall * tile_color, albedo); // Blend floor tile
albedo = BlendPremul(albedo_tex.Load(Vec3(shade_pos, 0)), albedo);
albedo = BlendPremul(albedo_tex_color, albedo);
albedo = BlendPremul(tile_is_wall * tile_color, albedo); // Blend wall tile
albedo = BlendPremul(stain_color, albedo);
}
//////////////////////////////
@ -710,6 +724,7 @@ PixelShader(V_CompositePS, V_CompositePSOutput, V_CompositePSInput input)
overlay_color = grid_color;
}
}
// Axis
if (V_ShaderConst_GpuFlags & V_GpuFlag_DebugDraw)
{
@ -728,6 +743,7 @@ PixelShader(V_CompositePS, V_CompositePSOutput, V_CompositePSInput input)
overlay_color = y_axis_color;
}
}
// World bounds
{
const Vec4 bounds_color = LinearFromSrgb(Vec4(0.75, 0.75, 0, 1));
@ -741,6 +757,7 @@ PixelShader(V_CompositePS, V_CompositePSOutput, V_CompositePSInput input)
overlay_color = bounds_color;
}
}
// Premultiply
overlay_color.rgb *= overlay_color.a;
}