vulkan-playground/shaders/shader.vert

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#version 450
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layout(location = 0) out vec3 fragColor;
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vec2 positions[3] = vec2[](
vec2(0.0, -0.5),
vec2(0.5, 0.5),
vec2(-0.5, 0.5)
);
vec3 colors[3] = vec3[](
vec3(1.0, 0.0, 0.0),
vec3(0.0, 1.0, 0.0),
vec3(0.0, 0.0, 1.0)
);
void main() {
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gl_Position = vec4(positions[gl_VertexIndex], 0.0, 1.0);
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fragColor = colors[gl_VertexIndex];
}