ged/shaders/cur.vert

#version 330 core

uniform float time;
uniform vec2 resolution;
uniform vec2 camera;
uniform vec2 pos;
uniform float h;
uniform float w;

out vec2 uv;

vec2 project_point(vec2 point)
{
	return (2.0 * (point - camera)) / resolution;
}

void main()
{
	uv = vec2(float(gl_VertexID & 1),
		  float((gl_VertexID >> 1) & 1));

	uv = uv * vec2(w, h) + pos;
	gl_Position = vec4(project_point(uv), 0.0, 1.0);
}