;-------------------------------------------
;	Matrix components
;	c0-c3	l2w * camera * projection
;	c4-c67  16 bone matricies
;	c76		Light 1 direction (in local space)
;	c77		Light 1 color RGBA
;Vertex components--------------------------
;	v0 vertex position
;	v1 s,t,q
;	v2 rgba or nx
;	v3 bone index 1-4
;	v4 bone weights
;	v5 tangent space input vector
; 

#pragma screenspace

xvs.1.1

;load the offset of bone matricies
mov	a0.x, v3.z

;Vertex and normal multiplied by blend weight 1

;multiply vertex by the matrix
dp4 r3.x, VERTEX_POS, c[a0.x + MATRIX_OFFSET1]
dp4 r3.y, VERTEX_POS, c[a0.x + MATRIX_OFFSET2]
dp4 r3.z, VERTEX_POS, c[a0.x + MATRIX_OFFSET3]
mov r3.w, ONE.x

;multiply vertex by the weight
mul r4,r3,v4.z

;multiply VERTEX_NORMALS by the matrix
dp3 r8.x, VERTEX_NORMALS, c[a0.x + MATRIX_OFFSET1]
dp3 r8.y, VERTEX_NORMALS, c[a0.x + MATRIX_OFFSET2]
dp3 r8.z, VERTEX_NORMALS, c[a0.x + MATRIX_OFFSET3]
mov r8.w, ONE.x

;multiply NORMAL by the weight
mul r9,r8,v4.z

;multiply TANGENT_SPACE vector by the matrix
dp3 r3.x, TANGENT_SPACE, c[a0.x + MATRIX_OFFSET1]
dp3 r3.y, TANGENT_SPACE, c[a0.x + MATRIX_OFFSET2]
dp3 r3.z, TANGENT_SPACE, c[a0.x + MATRIX_OFFSET3]
mov r3.w, ONE.x

;multiply TANGENT by the weight
mul r11,r3,v4.z

;Vertex and normal multiplied by blend weight 2

;load the offset of bone matricies
mov a0.x, v3.y

;multiply vertex by matrix 2 
dp4 r3.x, VERTEX_POS, c[a0.x + MATRIX_OFFSET1]
dp4 r3.y, VERTEX_POS, c[a0.x + MATRIX_OFFSET2]
dp4 r3.z, VERTEX_POS, c[a0.x + MATRIX_OFFSET3]
mov r3.w, ONE.x

;multiply  vertex by its weight
mad r4,r3,v4.y,r4

;multiply NORMAL by matrix 2 
dp3 r8.x, VERTEX_NORMALS, c[a0.x + MATRIX_OFFSET1]
dp3 r8.y, VERTEX_NORMALS, c[a0.x + MATRIX_OFFSET2]
dp3 r8.z, VERTEX_NORMALS, c[a0.x + MATRIX_OFFSET3]
mov r8.w, ONE.x


;multiply Normal by its weight
mad r9,r8,v4.y,r9

;multiply TANGENT_SPACE vector by the matrix
dp3 r3.x, TANGENT_SPACE, c[a0.x + MATRIX_OFFSET1]
dp3 r3.y, TANGENT_SPACE, c[a0.x + MATRIX_OFFSET2]
dp3 r3.z, TANGENT_SPACE, c[a0.x + MATRIX_OFFSET3]
mov r3.w, ONE.x


;multiply TANGENT by the weight
mad r11,r3,v4.y,r11

;Vertex and normal multiplied by blend weight 3

;load the offset of bone matricies
mov	a0.x, v3.x

;multiply vertex by bone matrix 1 
dp4 r3.x, VERTEX_POS, c[a0.x + MATRIX_OFFSET1]
dp4 r3.y, VERTEX_POS, c[a0.x + MATRIX_OFFSET2]
dp4 r3.z, VERTEX_POS, c[a0.x + MATRIX_OFFSET3]
mov r3.w, ONE.x

;multiply  vertex by its weight
mad r4,r3,v4.x,r4

;multiply NORMAL by bone matrix 1 
dp3 r8.x, VERTEX_NORMALS, c[a0.x + MATRIX_OFFSET1]
dp3 r8.y, VERTEX_NORMALS, c[a0.x + MATRIX_OFFSET2]
dp3 r8.z, VERTEX_NORMALS, c[a0.x + MATRIX_OFFSET3]
mov r8.w, ONE.x


;multiply  NORMAL by its weight
mad r9,r8,v4.x,r9
 
;multiply TANGENT_SPACE vector by the matrix
dp3 r3.x, TANGENT_SPACE, c[a0.x + MATRIX_OFFSET1]
dp3 r3.y, TANGENT_SPACE, c[a0.x + MATRIX_OFFSET2]
dp3 r3.z, TANGENT_SPACE, c[a0.x + MATRIX_OFFSET3]
mov r3.w, ONE.x

;multiply TANGENT by the weight
mad r11,r3,v4.x,r11

;place vertex in the clipping space
mul r1,  r4.x,  OUTPUT_MATRIX1
mad r2,  r4.y,  OUTPUT_MATRIX2, r1
mad r3,  r4.z,  OUTPUT_MATRIX3, r2
mad oPos,r4.w,  OUTPUT_MATRIX4, r3

; Copy transformed position for lighting later on
mov r10, r4

mov r8, r11			; save off our tangent space vect in r8

; Normalize the transformed vertex normals
mul r0.xyz, r8.xyz, r8.xyz
add r1.x, r0.x, r0.y
add r2.x, r1.x, r0.z
rsq r3.x, r2.x
mul r8.xyz, r8.xyz, r3.x