// box on GUI
    vs_3_0
    def c4, 0, 1, 0, 0
def c220, 0.15, 0, 0.0625, 0	
    dcl_color v0
    dcl_color1 v1
    dcl_position v2
    dcl_color o0
    dcl_color1 o1
    dcl_texcoord o2
    dcl_texcoord1 o3
    dcl_position o4
dcl_2d s0
	
//    dp4 o4.x, v2, c2
//    dp4 o4.y, v2, c3
 dp4 r3.x, v2, c2	 //change output register for temporary register
 dp4 r3.y, v2, c3	 //change output register for temporary register
    mov o0, v0
    mov o1, v1
    mov o2, c0
    mov o3, c1
//    mov o4.zw, c4.xyxy
mov r3.zw, c4.xyxy      //change output register for temporary register
mov r5, c220
mov r5.x, c221.x					// retrieve depth value from  Const1 in DX9Settings.ini
texldl r1, r5.z, s0					// retrieve values from stereo texture 
mul r1.x, r1.x, -r5.x				// multiplicity Separation * c220.x 
add r3.x, r3.x, -r1.x    			// correct output vertex position
mov o4, r3               			// mov from temporary register to output 
