50 lines
1.2 KiB
Text
50 lines
1.2 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 UniformShaderData {
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#0 image2D image,
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float4 rect,
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bool flipy
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}
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stage vertex vert_layer_pass(
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input {},
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vertex in {
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#0 float2 pos,
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#1 float2 uv
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},
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fragment out { float2 uv }
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) {
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out.uv = in.uv;
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stage.pos = float4(in.pos, 0.0, 1.0);
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}
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stage fragment upscale_top_center(
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input { View view, UniformShaderData pass },
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fragment in { float2 uv }
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) {
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//this is the uv in the full screen area
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float y = in.uv.y;
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if(input.pass.flipy) { y = 1.0 - y; }
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float2 uv = float2(in.uv.x, y);
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float2 dest_size = floor(input.view.target_region_size.zw);
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float4 local_rect = float4(input.pass.rect.xy / dest_size, input.pass.rect.zw / dest_size);
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float2 local_uv = (uv - local_rect.xy) / local_rect.zw;
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stage.color[0] = texture(input.pass.image, local_uv);
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if(local_uv.x < 0.0 || local_uv.y < 0.0 || local_uv.x > 1.0 || local_uv.y > 1.0){
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stage.color[0] = float4(0, 0, 0, 1);
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}
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return;
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}
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