Cheap-Vulkan-Renderer/shaders/simple_shader.vert

#version 450

vec2 positions[3] = vec2[] (
    vec2(0.0, -0.5),
    vec2(0.5, 0.5),
    vec2(-0.5, 0.5)
);
void main() {
  gl_Position = vec4(positions[gl_VertexIndex], 0.0, 1.0);
}