;------------------------------------------------------------------------------
; Loons Pixel shader to perform specular toon shading on textured prims
;------------------------------------------------------------------------------


;------------------------------------------------------------------------------
;
; Expected vertex shaders constants
;
;
; tex layer 0 - base texture
; tex layer 1 - toon shade/outline intensity texture
; tex layer 2 - attenuation texture??
; tex layer 3 - spotlight cubemap???
;
;------------------------------------------------------------------------------

;------------------------------------------------------------------------------
;   pixelshader code for use with v2.8 MrDog
;------------------------------------------------------------------------------

;#include "loonstoonshaderconsts.h"

xps.1.1
;c0 = ambient, c1 = Ilight0, c2 = Kspecular, c3 = tex offset clr
;def c6, 1.0f, 0.0f, 0.0f, 0.0f
;def c7, 0.0f, 0.5f, 0.75f, 1.0f
;def c8, 0.0f, 1.0f, 0.0f, 0.0f
;def c9, 0.0f, 0.0f, 1.0f, 0.0f
tex t0	 ;base texture
tex t1	 ;toon texture
;tex t2	 ;toon specular texture

; DO_AMBIENT_PASS - ie ambient done in separate pass
;mul r0.rgb, v0, t1     ;Vdiffuse(vtx clr*light clrattenuated*spot) * Ttoon(boned(clamped(N.L))
;mul r0.rgb, r0, t0     ; *= Tbase
;;add r0.rgb, r0.rgb, r0.rgb ;double result
;+mul r0.a, v0.a, t0.a  ;Valpha * Tbase_alpha

; NOT DO_AMBIENT_PASS - ie ambient done in this pass
mad r0.rgb, v0, t1, c0  ; ambient + Vdiffuse(vtx clr*light clrattenuated*spot) * Ttoon(boned(clamped(N.L))
mul r0.rgb, r0, t0     ; *= Tbase
;add r0.rgb, r0.rgb, r0.rgb ;double result
+mul r0.a, v0.a, t0.a  ;Valpha * Tbase_alpha

;colour/alpha post multiplier - for tinting & fadeouts
mul r0.rgba, r0.rgba, c3.rgba

;mul r1.rgb, c2, t2     ;Kspecular * Ttoonspecular(attenuated*spot*N.H)
;add r0.rgb, r0, r1     ;specular + diffuse


; multiply colour using colour matrix - for kewl colourspace effects,
; eg desaturation, oversaturation, hue shifts, etc
;dp3 r0.r, r0, c3
;dp3 r0.g, r0, c4
;dp3 r0.b, r0, c5

;dp3 r1.a, r0, c3 ;red
;dp3 r1.a, r0, c4 ;green
;dp3 r0.a, r0, c5 ;blue
;d0=s0 dot s1, d1=s2 dot s3.
;xdd r0,r1, s0,s1,s2,s3
;d0=s0*s1, d1=s2*s3, d2=s0*s1 + s2*s3.
;xmma d0,d1,d2, r0,c6(1,0,0),r1,c8(0,1,0)



;mul r1.rgb, c3, r0.rrr
;mad r1.rgb, c4.rgb, r0.ggg, r1.rgb
;mad r1.rgb, c5.rgb, r0.bbb, r1.rgb
;mov r1, r0

xfc zero, zero, r0.rgb, zero, zero, zero, r0.a ;do vanilla custom xfc, which doesnt add interpolated specular


;------------------------------------------------------------------------------
;   old pixelshader code used with v2.7 MrDog
;------------------------------------------------------------------------------
;#include "loonstoonshaderconsts.h"

;xps.1.1
;c0 = ambient, c1 = Ilight0, c2 = Kspecular
;def c3, 0.0f, 0.5f, 0.75f, 1.0f
;tex t0	 ;base texture
;tex t1	 ;toon texture
;tex t2	 ;toon specular texture

;mul r0.rgb, v0, t1     ;Vdiffuse * Ttoon(attenuated*spot*N.L)
;mul r0.rgb, r0, t0     ; *= Tbase
;+mul r0.a, v0.a, t0.a  ;Valpha * Tbase_alpha
;mul r1.rgb, c2, t2     ;Kspecular * Ttoonspecular(attenuated*spot*N.H)
;add r0.rgb, r0, r1     ;specular + diffuse
;mul r0.rgb, r0.rgb, c1 ;lighting * Ilight0

;xfc zero, zero, r0.rgb, zero, zero, zero, r0.a ;do vanilla custom xfc, which doesnt add interpolated specular