#version 140

in vec4				inPosition;
in vec2				inTexCoord;

out vec2			pxTexCoord1;

void main(void)
{
	float vertDir = float(gl_VertexID % 2); // 0 or 1

	vec4 vert = vec4(inPosition.xyz, 1.0);

	vec2 right = (vertDir * 2.0 - 1.0) * inTexCoord;
	vert.x += right.x;
	vert.z += right.y;

	pxTexCoord1.x = inPosition.w;
	pxTexCoord1.y = vertDir;

	gl_Position = vert;
}