mirror of
https://github.com/thug1src/thug.git
synced 2025-01-22 05:43:47 +00:00
54 lines
1.6 KiB
GLSL
54 lines
1.6 KiB
GLSL
xvs.1.1
|
|
|
|
; Constants:
|
|
; c0 - c3 WVP Matrix (WORLD*VIEW*PROJECTION)
|
|
; c4 Screen right vector
|
|
; c5 Screen up vector
|
|
; c6 Screen at vector
|
|
|
|
; In:
|
|
; v0 - Position (actually the position of the pivot point)
|
|
; v1 - Normal (actually the position of the point relative to the pivot)
|
|
; v2 - Vertex color
|
|
; v3 - TexCoord0
|
|
; v4 - TexCoord1
|
|
; v5 - TexCoord2
|
|
; v6 - TexCoord3
|
|
|
|
; Out:
|
|
; oPos - Position
|
|
; oTn - TextureCoords
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Pivot relative position -> world relative position, plus copy texture coordinates
|
|
; (interleaving these helps prevent stalls)
|
|
;------------------------------------------------------------------------------
|
|
mul r0.xyz, v1.x, c4
|
|
mov oT0, v3
|
|
mad r0.xyz, v1.y, c5, r0
|
|
mov oT1, v4
|
|
mad r0.xyz, v1.z, c6, r0
|
|
mov oT2, v5
|
|
add r0.xyz, v0, r0
|
|
mov oT3, v6
|
|
sge r0.w, c0.x, c0.x ; Set r0.w = 1.0
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Vertex color
|
|
;------------------------------------------------------------------------------
|
|
mov oD0, v2
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Vertex->screen transform
|
|
;------------------------------------------------------------------------------
|
|
dp4 oPos.x, r0, c0
|
|
dp4 oPos.y, r0, c1
|
|
dp4 oPos.z, r0, c2
|
|
dp4 oPos.w, r0, c3
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Deal with fog value (r12 shadows oPos)...
|
|
;------------------------------------------------------------------------------
|
|
mov oFog.x, -r12.w
|
|
|