#version 450

layout(location = 0) out vec3 fragColor;

vec2 positions[3] = vec2[](
    vec2(0.0f, -0.5f),
    vec2(0.5f, 0.5f),
    vec2(-0.5f, 0.5f)
);

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];
}