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Render sampled grid with colors and stuff!

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This commit is contained in:
Eryn Wells 2018-10-14 12:51:24 -07:00
parent 7694a641a0
commit 720e3b1b64
3 changed files with 55 additions and 82 deletions
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10
MetaballsKit/MarchingSquares.metal
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@ -19,6 +19,7 @@ struct RasterizerData {
float4 position [[position]];
float4 color;
float2 textureCoordinate;
int instance;
};
vertex RasterizerData
@ -34,12 +35,17 @@ gridVertexShader(constant Vertex *vertexes [[buffer(0)]],
RasterizerData out;
out.position = renderParameters.projection * rect.transform * float4(v.position.xy, 0, 1);
out.color = rect.color;
out.textureCoordinate = v.textureCoordinate;
out.instance = instid;
return out;
}
fragment float4
gridFragmentShader(RasterizerData in [[stage_in]])
gridFragmentShader(RasterizerData in [[stage_in]],
constant float *samples [[buffer(0)]])
{
return in.color;
int instance = in.instance;
float sample = samples[instance];
return sample > 1.0 ? in.color : float4(0);
}