#version 450

layout(location = 0) in vec2 v_uv;
layout(location = 0) out vec4 o_color;

layout(set = 0, binding = 0) uniform MaterialUniform {
    vec4 color;
} material;

void main() {
    // simple uv-based gradient multiplied by uniform color
    vec3 grad = vec3(v_uv, 0.5);
    o_color = material.color * vec4(grad, 1.0);
}