50 lines
1.5 KiB
Text
50 lines
1.5 KiB
Text
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input View {
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mat4 mvp,
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mat4 proj,
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mat4 proj_inverse,
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mat4 view,
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mat4 world, //geometry.world atm
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float2 fov, //fov.x, fov.y
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float2 resolution,
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float4 target_region,
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float4 target_region_size
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}
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input Font {
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image2D pages[8]
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}
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stage vertex vert(
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input { View view },
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vertex in { #0 float4 pos, #1 float4 color, #2 float2 uv },
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fragment out { float4 color, float2 uv, float page })
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{
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out.color = in.color;
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out.uv = in.uv;
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out.page = in.pos.w;
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stage.pos = input.view.mvp * float4(in.pos.xyz, 1.0);
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}
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stage fragment frag(
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input { Font font },
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fragment in { float4 color, float2 uv, float page })
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{
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int page = int(in.page);
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float4 msdf_sample = texture(input.font.pages[0], in.uv.xy);
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if(page == 1) { msdf_sample = texture(input.font.pages[1], in.uv.xy); }
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if(page == 2) { msdf_sample = texture(input.font.pages[2], in.uv.xy); }
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if(page == 3) { msdf_sample = texture(input.font.pages[3], in.uv.xy); }
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if(page == 4) { msdf_sample = texture(input.font.pages[4], in.uv.xy); }
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if(page == 5) { msdf_sample = texture(input.font.pages[5], in.uv.xy); }
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if(page == 6) { msdf_sample = texture(input.font.pages[6], in.uv.xy); }
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if(page == 7) { msdf_sample = texture(input.font.pages[7], in.uv.xy); }
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float r = msdf_sample.r;
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float g = msdf_sample.g;
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float b = msdf_sample.b;
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float median = max(min(r, g), min(max(r, g), b));
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float opacity = float(median > 0.5);
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stage.color[0] = float4(in.color.rgb, in.color.a * opacity);
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}
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