libcruft-vk/tools/hello/shader.vert
Danny Robson 61becdad93 hello-tool: simple triangle tool
Mostly a straight copy-paste job from vulkan-tutorial.com

The code is hideous (my fault, not theirs). Avert your eyes.
2017-09-05 17:20:42 +10:00

26 lines
465 B
GLSL

#version 450
#extension GL_ARB_separate_shader_objects : enable
out gl_PerVertex {
vec4 gl_Position;
};
layout(location = 0) out vec3 fragColor;
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() {
gl_Position = vec4(positions[gl_VertexIndex], 0.0, 1.0);
fragColor = colors[gl_VertexIndex];
}