luboslenco
50 lines
1.4 KiB
Plaintext
50 lines
1.4 KiB
Plaintext
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#[set(everything)]
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const constants: {
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screen_size_inv: float2;
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};
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#[set(everything)]
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const sampler_linear: sampler;
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#[set(everything)]
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const tex: tex2d;
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struct vert_in {
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pos: float2;
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}
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struct vert_out {
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pos: float4;
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tex: float2;
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}
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fun supersample_resolve_vert(input: vert_in): vert_out {
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var output: vert_out;
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output.tex = input.pos.xy * 0.5 + 0.5;
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output.tex.y = 1.0 - output.tex.y;
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output.pos = float4(input.pos.xy, 0.0, 1.0);
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return output;
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}
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fun supersample_resolve_frag(input: vert_out): float4 {
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// 4X resolve
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var tex_step: float2 = constants.screen_size_inv / 4.0;
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var col: float4 = sample(tex, sampler_linear, input.tex);
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col += sample(tex, sampler_linear, input.tex + float2(1.5, 0.0) * tex_step);
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col += sample(tex, sampler_linear, input.tex + float2(-1.5, 0.0) * tex_step);
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col += sample(tex, sampler_linear, input.tex + float2(0.0, 1.5) * tex_step);
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col += sample(tex, sampler_linear, input.tex + float2(0.0, -1.5) * tex_step);
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col += sample(tex, sampler_linear, input.tex + float2(1.5, 1.5) * tex_step);
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col += sample(tex, sampler_linear, input.tex + float2(-1.5, -1.5) * tex_step);
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col += sample(tex, sampler_linear, input.tex + float2(1.5, -1.5) * tex_step);
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col += sample(tex, sampler_linear, input.tex + float2(-1.5, 1.5) * tex_step);
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return col / 9.0;
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}
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#[pipe]
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struct pipe {
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vertex = supersample_resolve_vert;
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fragment = supersample_resolve_frag;
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}
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