40 lines
765 B
GLSL
40 lines
765 B
GLSL
// IMPORTANT: This shader needs to be compiled out-of-band to SPIR-V
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// See: https://github.com/parasyte/pixels/issues/9
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#version 450
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out gl_PerVertex {
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vec4 gl_Position;
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};
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layout(location = 0) out vec2 v_TexCoord;
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const vec2 positions[6] = vec2[6](
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// Upper left triangle
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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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// Lower right triangle
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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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const vec2 uv[6] = vec2[6](
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// Upper left triangle
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vec2(0.0, 0.0),
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vec2(1.0, 0.0),
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vec2(0.0, 1.0),
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// Lower right triangle
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vec2(0.0, 1.0),
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vec2(1.0, 0.0),
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vec2(1.0, 1.0)
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);
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void main() {
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v_TexCoord = uv[gl_VertexIndex];
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gl_Position = vec4(positions[gl_VertexIndex], 0.0, 1.0);
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}
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