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15 lines
446 B
GLSL
15 lines
446 B
GLSL
#version 300 es
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precision highp float;
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precision highp int;
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precision highp sampler2D;
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layout(std140) uniform ub0 { vec4 region; vec4 localRect; vec4 fit; };
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out vec2 uv;
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flat out vec4 bounds;
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void main() {
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vec2 corner=vec2(float(gl_VertexID&1),float((gl_VertexID>>1)&1));
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vec2 local=mix(localRect.xy,localRect.zw,corner);
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gl_Position=vec4((local-0.5)*2.0*fit.xy,0.0,1.0);
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uv=mix(region.xy,region.zw,corner);
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bounds=region;
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}
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