in ivec3 aPosition;
in vec4 aTextureInfo;
in ivec3 aTextureOffset;
in vec4 aColor;

out vec4 vColor;
out vec4 vTextureInfo;
out vec2 vTextureOffset;
out float vAtlas;

uniform vec2 screenSize;

void main() {
	vec2 pos = aPosition.xy / screenSize;
	gl_Position = vec4((pos.x-0.5)*2.0, -(pos.y-0.5)*2.0, float(-aPosition.z) / float(0xFFFF-1), 1.0);
	vColor = aColor;
	vTextureInfo = aTextureInfo;
	vTextureOffset = aTextureOffset.xy / 16.0;
	vAtlas = aTextureOffset.z;
}