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

[binding]
name: verts
rate: vertex
[attribute]
name: position
type: vec2
[attribute]
name: uv
type: vec2
[attribute]
name: colour
type: vec4

[interpolator]
name: colour
type: vec4
[interpolator]
name: uv
type: vec2

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

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

[texture]
name: atlas
stage: fragment
dimension: 2

[target]
name: colour
type: vec4

#endif

#ifdef VERTEX_SHADER

void main() {
	interpolator.colour = colour;
	interpolator.uv = uv;
	gl_Position = config_buffer.projection * vec4(position, 0.0, 1.0);
}

#endif

#ifdef FRAGMENT_SHADER

void main() {
	vec4 c = texture(atlas, interpolator.uv).r.xxxx;
	c *= interpolator.colour;
	colour = c;
}

#endif