uniform mat4 u_mvpMatrix;

uniform vec3 texSize;

attribute vec4 a_position;

attribute vec3 a_texCoord;

varying vec4 scaled;

varying vec2 pos;

varying vec2 videoCoord;

void main()

{

	gl_Position = u_mvpMatrix * a_position;

	vec2 tmp = a_texCoord.xy * texSize.xy;

	scaled = tmp.xxxy + vec4(0.0, 1.0/3.0, 2.0/3.0, 0.5);

	pos        = a_texCoord.xy;

#if SUPERIMPOSE

	videoCoord = a_texCoord.xz;

#endif

}