opengl_es_examples/TrainingCourse/AlphaBlend/OGLES2/VertShader.vsh

attribute highp  vec2  inVertex;

uniform highp vec2  LowerLeft;
uniform highp mat2  ScaleMatrix; // width/height and screen rotation

varying mediump vec2  TexCoord;

void main()
{
	gl_Position = vec4(ScaleMatrix * inVertex + LowerLeft, 0, 1);
	
	TexCoord = inVertex;
}