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35 lines
772 B
GLSL
35 lines
772 B
GLSL
#version 460 core
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#define STAGE_VERTEX 1
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const vec2 vert[4] = vec2[]
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(
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vec2(-1.0, 1.0),
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vec2(-1.0, -1.0),
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vec2( 1.0, 1.0),
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vec2( 1.0, -1.0)
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);
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layout(location = 2) out vec2 f_coord;
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// the corner of the quad, -1...1 across it
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layout(location = 15) out vec2 f_local;
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#include "common.glsl"
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void main()
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{
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gl_Position = projection * (vec4(param[1].xyz, 1.0) + vec4(vert[gl_VertexID] * param[1].w, 0.0, 0.0));
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f_local = vert[gl_VertexID];
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vec2 coord = param[2].xy;
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float size = param[2].z;
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if (gl_VertexID == 0)
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f_coord = vec2(coord.x, coord.y);
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if (gl_VertexID == 1)
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f_coord = vec2(coord.x, coord.y - size);
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if (gl_VertexID == 2)
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f_coord = vec2(coord.x + size, coord.y);
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if (gl_VertexID == 3)
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f_coord = vec2(coord.x + size, coord.y - size);
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}
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