#version 450

layout(location = 0) in vec2 inPosition;
layout(location = 1) in vec3 inColor;
layout(location = 2) in uint index;

layout(set = 0, binding = 0) uniform UBO {
    mat3 view;
    mat3 proj;
} ubo;

layout(set = 0, binding = 1) uniform UBO_INST {
    mat3 model[1000];
} ubo_inst;

layout(location = 0) out vec3 fragColor;
layout(location = 1) out vec2 fragUV;

void main() {
    gl_Position = vec4(ubo.proj * ubo.view * ubo_inst.model[index] * vec3(inPosition, 1.0), 1.0);
    fragColor = inColor;
    fragUV = inPosition + vec2(0.5, 0.5);
}