#version 450

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];
}