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#ifdef DESC
[program]
type: graphics
vertex: main
fragment: main

[binding]
name: mesh
rate: vertex
[attribute]
name: position
type: vec3
[attribute]
name: normal
type: vec3
[attribute]
name: uv
type: vec2

[interpolator]
name: uv
type: vec2
[interpolator]
name: normal
type: vec3

[struct]
name: Config
[variable]
name: transform
type: mat4
[variable]
name: projection
type: mat4

[cbuffer]
name: config_buffer
type: Config
stage: vertex

[target]
name: colour
type: vec4

#endif

#ifdef VERTEX_SHADER

void main() {
	interpolator.uv = uv;
	interpolator.normal = mat3(config_buffer.transform) * normal;
	gl_Position =
		config_buffer.projection *
		config_buffer.transform *
		vec4(position, 1.0);
}

#endif

#ifdef FRAGMENT_SHADER

void main() {
	vec3 normal = normalize(interpolator.normal);
	float light = max(dot(normal, vec3(0, 0, 1)), 0.0);
	colour = vec4(light.xxx, 1.0);
}

#endif