OpenGL2: Clean up texmod calculations, and improve vertex animation handling.

1 files changed, 19 insertions, 551 deletions

diff --git a/src/renderergl2/tr_shade_calc.c b/src/renderergl2/tr_shade_calc.c
index c2e9aa83..2b6626a2 100644
--- a/src/renderergl2/tr_shade_calc.c
+++ b/src/renderergl2/tr_shade_calc.c
@@ -85,42 +85,16 @@ static float EvalWaveFormClamped( const waveForm_t *wf )
 }
 
 /*
-** RB_CalcStretchTexCoords
+** RB_CalcStretchTexMatrix
 */
-void RB_CalcStretchTexCoords( const waveForm_t *wf, float *st )
-{
-	float p;
-	texModInfo_t tmi;
-
-	p = 1.0f / EvalWaveForm( wf );
-
-	tmi.matrix[0][0] = p;
-	tmi.matrix[1][0] = 0;
-	tmi.translate[0] = 0.5f - 0.5f * p;
-
-	tmi.matrix[0][1] = 0;
-	tmi.matrix[1][1] = p;
-	tmi.translate[1] = 0.5f - 0.5f * p;
-
-	RB_CalcTransformTexCoords( &tmi, st );
-}
-
 void RB_CalcStretchTexMatrix( const waveForm_t *wf, float *matrix )
 {
 	float p;
-	texModInfo_t tmi;
 
 	p = 1.0f / EvalWaveForm( wf );
 
-	tmi.matrix[0][0] = p;
-	tmi.matrix[1][0] = 0;
-	tmi.translate[0] = 0.5f - 0.5f * p;
-
-	tmi.matrix[0][1] = 0;
-	tmi.matrix[1][1] = p;
-	tmi.translate[1] = 0.5f - 0.5f * p;
-
-	RB_CalcTransformTexMatrix( &tmi, matrix );
+	matrix[0] = p; matrix[2] = 0; matrix[4] = 0.5f - 0.5f * p;
+	matrix[1] = 0; matrix[3] = p; matrix[5] = 0.5f - 0.5f * p;
 }
 
 /*
@@ -620,88 +594,6 @@ COLORS
 
 
 /*
-** RB_CalcColorFromEntity
-*/
-void RB_CalcColorFromEntity( unsigned char *dstColors )
-{
-	int	i;
-	int *pColors = ( int * ) dstColors;
-	int c;
-
-	if ( !backEnd.currentEntity )
-		return;
-
-	c = * ( int * ) backEnd.currentEntity->e.shaderRGBA;
-
-	for ( i = 0; i < tess.numVertexes; i++, pColors++ )
-	{
-		*pColors = c;
-	}
-}
-
-/*
-** RB_CalcColorFromOneMinusEntity
-*/
-void RB_CalcColorFromOneMinusEntity( unsigned char *dstColors )
-{
-	int	i;
-	int *pColors = ( int * ) dstColors;
-	unsigned char invModulate[4];
-	int c;
-
-	if ( !backEnd.currentEntity )
-		return;
-
-	invModulate[0] = 255 - backEnd.currentEntity->e.shaderRGBA[0];
-	invModulate[1] = 255 - backEnd.currentEntity->e.shaderRGBA[1];
-	invModulate[2] = 255 - backEnd.currentEntity->e.shaderRGBA[2];
-	invModulate[3] = 255 - backEnd.currentEntity->e.shaderRGBA[3];	// this trashes alpha, but the AGEN block fixes it
-
-	c = * ( int * ) invModulate;
-
-	for ( i = 0; i < tess.numVertexes; i++, pColors++ )
-	{
-		*pColors = c;
-	}
-}
-
-/*
-** RB_CalcAlphaFromEntity
-*/
-void RB_CalcAlphaFromEntity( unsigned char *dstColors )
-{
-	int	i;
-
-	if ( !backEnd.currentEntity )
-		return;
-
-	dstColors += 3;
-
-	for ( i = 0; i < tess.numVertexes; i++, dstColors += 4 )
-	{
-		*dstColors = backEnd.currentEntity->e.shaderRGBA[3];
-	}
-}
-
-/*
-** RB_CalcAlphaFromOneMinusEntity
-*/
-void RB_CalcAlphaFromOneMinusEntity( unsigned char *dstColors )
-{
-	int	i;
-
-	if ( !backEnd.currentEntity )
-		return;
-
-	dstColors += 3;
-
-	for ( i = 0; i < tess.numVertexes; i++, dstColors += 4 )
-	{
-		*dstColors = 0xff - backEnd.currentEntity->e.shaderRGBA[3];
-	}
-}
-
-/*
 ** RB_CalcWaveColorSingle
 */
 float RB_CalcWaveColorSingle( const waveForm_t *wf )
@@ -725,29 +617,6 @@ float RB_CalcWaveColorSingle( const waveForm_t *wf )
 }
 
 /*
-** RB_CalcWaveColor
-*/
-void RB_CalcWaveColor( const waveForm_t *wf, unsigned char *dstColors )
-{
-	int i;
-	int v;
-	float glow;
-	int *colors = ( int * ) dstColors;
-	byte	color[4];
-
-	glow = RB_CalcWaveColorSingle( wf );
-
-	v = ri.ftol(255 * glow);
-	color[0] = color[1] = color[2] = v;
-	color[3] = 255;
-	v = *(int *)color;
-	
-	for ( i = 0; i < tess.numVertexes; i++, colors++ ) {
-		*colors = v;
-	}
-}
-
-/*
 ** RB_CalcWaveAlphaSingle
 */
 float RB_CalcWaveAlphaSingle( const waveForm_t *wf )
@@ -756,25 +625,6 @@ float RB_CalcWaveAlphaSingle( const waveForm_t *wf )
 }
 
 /*
-** RB_CalcWaveAlpha
-*/
-void RB_CalcWaveAlpha( const waveForm_t *wf, unsigned char *dstColors )
-{
-	int i;
-	int v;
-	float glow;
-
-	glow = EvalWaveFormClamped( wf );
-
-	v = 255 * glow;
-
-	for ( i = 0; i < tess.numVertexes; i++, dstColors += 4 )
-	{
-		dstColors[3] = v;
-	}
-}
-
-/*
 ** RB_CalcModulateColorsByFog
 */
 void RB_CalcModulateColorsByFog( unsigned char *colors ) {
@@ -794,45 +644,6 @@ void RB_CalcModulateColorsByFog( unsigned char *colors ) {
 	}
 }
 
-/*
-** RB_CalcModulateAlphasByFog
-*/
-void RB_CalcModulateAlphasByFog( unsigned char *colors ) {
-	int		i;
-	float	texCoords[SHADER_MAX_VERTEXES][2];
-
-	// calculate texcoords so we can derive density
-	// this is not wasted, because it would only have
-	// been previously called if the surface was opaque
-	RB_CalcFogTexCoords( texCoords[0] );
-
-	for ( i = 0; i < tess.numVertexes; i++, colors += 4 ) {
-		float f = 1.0 - R_FogFactor( texCoords[i][0], texCoords[i][1] );
-		colors[3] *= f;
-	}
-}
-
-/*
-** RB_CalcModulateRGBAsByFog
-*/
-void RB_CalcModulateRGBAsByFog( unsigned char *colors ) {
-	int		i;
-	float	texCoords[SHADER_MAX_VERTEXES][2];
-
-	// calculate texcoords so we can derive density
-	// this is not wasted, because it would only have
-	// been previously called if the surface was opaque
-	RB_CalcFogTexCoords( texCoords[0] );
-
-	for ( i = 0; i < tess.numVertexes; i++, colors += 4 ) {
-		float f = 1.0 - R_FogFactor( texCoords[i][0], texCoords[i][1] );
-		colors[0] *= f;
-		colors[1] *= f;
-		colors[2] *= f;
-		colors[3] *= f;
-	}
-}
-
 
 /*
 ====================================================================
@@ -929,118 +740,27 @@ void RB_CalcFogTexCoords( float *st ) {
 	}
 }
 
-
-
-/*
-** RB_CalcEnvironmentTexCoords
-*/
-void RB_CalcEnvironmentTexCoords( float *st ) 
-{
-	int			i;
-	float		*v, *normal;
-	vec3_t		viewer, reflected;
-	float		d;
-
-	v = tess.xyz[0];
-	normal = tess.normal[0];
-
-	for (i = 0 ; i < tess.numVertexes ; i++, v += 4, normal += 4, st += 2 ) 
-	{
-		VectorSubtract (backEnd.or.viewOrigin, v, viewer);
-		VectorNormalizeFast (viewer);
-
-		d = DotProduct (normal, viewer);
-
-		reflected[0] = normal[0]*2*d - viewer[0];
-		reflected[1] = normal[1]*2*d - viewer[1];
-		reflected[2] = normal[2]*2*d - viewer[2];
-
-		st[0] = 0.5 + reflected[1] * 0.5;
-		st[1] = 0.5 - reflected[2] * 0.5;
-	}
-}
-
 /*
-** RB_CalcTurbulentTexCoords
+** RB_CalcTurbulentFactors
 */
-void RB_CalcTurbulentTexCoords( const waveForm_t *wf, float *st )
+void RB_CalcTurbulentFactors( const waveForm_t *wf, float *amplitude, float *now )
 {
-	int i;
-	float now;
-
-	now = ( wf->phase + tess.shaderTime * wf->frequency );
-
-	for ( i = 0; i < tess.numVertexes; i++, st += 2 )
-	{
-		float s = st[0];
-		float t = st[1];
-
-		st[0] = s + tr.sinTable[ ( ( int ) ( ( ( tess.xyz[i][0] + tess.xyz[i][2] )* 1.0/128 * 0.125 + now ) * FUNCTABLE_SIZE ) ) & ( FUNCTABLE_MASK ) ] * wf->amplitude;
-		st[1] = t + tr.sinTable[ ( ( int ) ( ( tess.xyz[i][1] * 1.0/128 * 0.125 + now ) * FUNCTABLE_SIZE ) ) & ( FUNCTABLE_MASK ) ] * wf->amplitude;
-	}
-}
-
-void RB_CalcTurbulentTexMatrix( const waveForm_t *wf, matrix_t matrix )
-{
-	float now;
-
-	now = ( wf->phase + tess.shaderTime * wf->frequency );
-
-	// bit of a hack here, hide amplitude and now in the matrix
-	// the vertex program will extract them and perform a turbulent pass last if it's nonzero
-
-	matrix[ 0] = 1.0f; matrix[ 4] = 0.0f; matrix[ 8] = 0.0f; matrix[12] = wf->amplitude;
-	matrix[ 1] = 0.0f; matrix[ 5] = 1.0f; matrix[ 9] = 0.0f; matrix[13] = now;
-	matrix[ 2] = 0.0f; matrix[ 6] = 0.0f; matrix[10] = 1.0f; matrix[14] = 0.0f;
-	matrix[ 3] = 0.0f; matrix[ 7] = 0.0f; matrix[11] = 0.0f; matrix[15] = 1.0f;
+	*now = wf->phase + tess.shaderTime * wf->frequency;
+	*amplitude = wf->amplitude;
 }
 
 /*
-** RB_CalcScaleTexCoords
+** RB_CalcScaleTexMatrix
 */
-void RB_CalcScaleTexCoords( const float scale[2], float *st )
-{
-	int i;
-
-	for ( i = 0; i < tess.numVertexes; i++, st += 2 )
-	{
-		st[0] *= scale[0];
-		st[1] *= scale[1];
-	}
-}
-
 void RB_CalcScaleTexMatrix( const float scale[2], float *matrix )
 {
-	matrix[ 0] = scale[0]; matrix[ 4] = 0.0f;     matrix[ 8] = 0.0f; matrix[12] = 0.0f;
-	matrix[ 1] = 0.0f;     matrix[ 5] = scale[1]; matrix[ 9] = 0.0f; matrix[13] = 0.0f;
-	matrix[ 2] = 0.0f;     matrix[ 6] = 0.0f;     matrix[10] = 1.0f; matrix[14] = 0.0f;
-	matrix[ 3] = 0.0f;     matrix[ 7] = 0.0f;     matrix[11] = 0.0f; matrix[15] = 1.0f;
+	matrix[0] = scale[0]; matrix[2] = 0.0f;     matrix[4] = 0.0f;
+	matrix[1] = 0.0f;     matrix[3] = scale[1]; matrix[5] = 0.0f;
 }
 
 /*
-** RB_CalcScrollTexCoords
+** RB_CalcScrollTexMatrix
 */
-void RB_CalcScrollTexCoords( const float scrollSpeed[2], float *st )
-{
-	int i;
-	float timeScale = tess.shaderTime;
-	float adjustedScrollS, adjustedScrollT;
-
-	adjustedScrollS = scrollSpeed[0] * timeScale;
-	adjustedScrollT = scrollSpeed[1] * timeScale;
-
-	// clamp so coordinates don't continuously get larger, causing problems
-	// with hardware limits
-	adjustedScrollS = adjustedScrollS - floor( adjustedScrollS );
-	adjustedScrollT = adjustedScrollT - floor( adjustedScrollT );
-
-	for ( i = 0; i < tess.numVertexes; i++, st += 2 )
-	{
-		st[0] += adjustedScrollS;
-		st[1] += adjustedScrollT;
-	}
-}
-
 void RB_CalcScrollTexMatrix( const float scrollSpeed[2], float *matrix )
 {
 	float timeScale = tess.shaderTime;
@@ -1054,73 +774,28 @@ void RB_CalcScrollTexMatrix( const float scrollSpeed[2], float *matrix )
 	adjustedScrollS = adjustedScrollS - floor( adjustedScrollS );
 	adjustedScrollT = adjustedScrollT - floor( adjustedScrollT );
 
-
-	matrix[ 0] = 1.0f; matrix[ 4] = 0.0f; matrix[ 8] = adjustedScrollS; matrix[12] = 0.0f;
-	matrix[ 1] = 0.0f; matrix[ 5] = 1.0f; matrix[ 9] = adjustedScrollT; matrix[13] = 0.0f;
-	matrix[ 2] = 0.0f; matrix[ 6] = 0.0f; matrix[10] = 1.0f;            matrix[14] = 0.0f;
-	matrix[ 3] = 0.0f; matrix[ 7] = 0.0f; matrix[11] = 0.0f;            matrix[15] = 1.0f;
+	matrix[0] = 1.0f; matrix[2] = 0.0f; matrix[4] = adjustedScrollS;
+	matrix[1] = 0.0f; matrix[3] = 1.0f; matrix[5] = adjustedScrollT;
 }
 
 /*
-** RB_CalcTransformTexCoords
+** RB_CalcTransformTexMatrix
 */
-void RB_CalcTransformTexCoords( const texModInfo_t *tmi, float *st  )
-{
-	int i;
-
-	for ( i = 0; i < tess.numVertexes; i++, st += 2 )
-	{
-		float s = st[0];
-		float t = st[1];
-
-		st[0] = s * tmi->matrix[0][0] + t * tmi->matrix[1][0] + tmi->translate[0];
-		st[1] = s * tmi->matrix[0][1] + t * tmi->matrix[1][1] + tmi->translate[1];
-	}
-}
-
 void RB_CalcTransformTexMatrix( const texModInfo_t *tmi, float *matrix  )
 {
-	matrix[ 0] = tmi->matrix[0][0]; matrix[ 4] = tmi->matrix[1][0]; matrix[ 8] = tmi->translate[0]; matrix[12] = 0.0f;
-	matrix[ 1] = tmi->matrix[0][1]; matrix[ 5] = tmi->matrix[1][1]; matrix[ 9] = tmi->translate[1]; matrix[13] = 0.0f;
-	matrix[ 2] = 0.0f;              matrix[ 6] = 0.0f;              matrix[10] = 1.0f;              matrix[14] = 0.0f;
-	matrix[ 3] = 0.0f;              matrix[ 7] = 0.0f;              matrix[11] = 0.0f;              matrix[15] = 1.0f;
+	matrix[0] = tmi->matrix[0][0]; matrix[2] = tmi->matrix[1][0]; matrix[4] = tmi->translate[0];
+	matrix[1] = tmi->matrix[0][1]; matrix[3] = tmi->matrix[1][1]; matrix[5] = tmi->translate[1];
 }
 
 /*
-** RB_CalcRotateTexCoords
+** RB_CalcRotateTexMatrix
 */
-void RB_CalcRotateTexCoords( float degsPerSecond, float *st )
-{
-	float timeScale = tess.shaderTime;
-	float degs;
-	int index;
-	float sinValue, cosValue;
-	texModInfo_t tmi;
-
-	degs = -degsPerSecond * timeScale;
-	index = degs * ( FUNCTABLE_SIZE / 360.0f );
-
-	sinValue = tr.sinTable[ index & FUNCTABLE_MASK ];
-	cosValue = tr.sinTable[ ( index + FUNCTABLE_SIZE / 4 ) & FUNCTABLE_MASK ];
-
-	tmi.matrix[0][0] = cosValue;
-	tmi.matrix[1][0] = -sinValue;
-	tmi.translate[0] = 0.5 - 0.5 * cosValue + 0.5 * sinValue;
-
-	tmi.matrix[0][1] = sinValue;
-	tmi.matrix[1][1] = cosValue;
-	tmi.translate[1] = 0.5 - 0.5 * sinValue - 0.5 * cosValue;
-
-	RB_CalcTransformTexCoords( &tmi, st );
-}
-
 void RB_CalcRotateTexMatrix( float degsPerSecond, float *matrix )
 {
 	float timeScale = tess.shaderTime;
 	float degs;
 	int index;
 	float sinValue, cosValue;
-	texModInfo_t tmi;
 
 	degs = -degsPerSecond * timeScale;
 	index = degs * ( FUNCTABLE_SIZE / 360.0f );
@@ -1128,213 +803,6 @@ void RB_CalcRotateTexMatrix( float degsPerSecond, float *matrix )
 	sinValue = tr.sinTable[ index & FUNCTABLE_MASK ];
 	cosValue = tr.sinTable[ ( index + FUNCTABLE_SIZE / 4 ) & FUNCTABLE_MASK ];
 
-	tmi.matrix[0][0] = cosValue;
-	tmi.matrix[1][0] = -sinValue;
-	tmi.translate[0] = 0.5 - 0.5 * cosValue + 0.5 * sinValue;
-
-	tmi.matrix[0][1] = sinValue;
-	tmi.matrix[1][1] = cosValue;
-	tmi.translate[1] = 0.5 - 0.5 * sinValue - 0.5 * cosValue;
-
-	RB_CalcTransformTexMatrix( &tmi, matrix );
-}
-/*
-** RB_CalcSpecularAlpha
-**
-** Calculates specular coefficient and places it in the alpha channel
-*/
-vec3_t lightOrigin = { -960, 1980, 96 };		// FIXME: track dynamically
-
-void RB_CalcSpecularAlpha( unsigned char *alphas ) {
-	int			i;
-	float		*v, *normal;
-	vec3_t		viewer,  reflected;
-	float		l, d;
-	int			b;
-	vec3_t		lightDir;
-	int			numVertexes;
-
-	v = tess.xyz[0];
-	normal = tess.normal[0];
-
-	alphas += 3;
-
-	numVertexes = tess.numVertexes;
-	for (i = 0 ; i < numVertexes ; i++, v += 4, normal += 4, alphas += 4) {
-		float ilength;
-
-		VectorSubtract( lightOrigin, v, lightDir );
-//		ilength = Q_rsqrt( DotProduct( lightDir, lightDir ) );
-		VectorNormalizeFast( lightDir );
-
-		// calculate the specular color
-		d = DotProduct (normal, lightDir);
-//		d *= ilength;
-
-		// we don't optimize for the d < 0 case since this tends to
-		// cause visual artifacts such as faceted "snapping"
-		reflected[0] = normal[0]*2*d - lightDir[0];
-		reflected[1] = normal[1]*2*d - lightDir[1];
-		reflected[2] = normal[2]*2*d - lightDir[2];
-
-		VectorSubtract (backEnd.or.viewOrigin, v, viewer);
-		ilength = Q_rsqrt( DotProduct( viewer, viewer ) );
-		l = DotProduct (reflected, viewer);
-		l *= ilength;
-
-		if (l < 0) {
-			b = 0;
-		} else {
-			l = l*l;
-			l = l*l;
-			b = l * 255;
-			if (b > 255) {
-				b = 255;
-			}
-		}
-
-		*alphas = b;
-	}
+	matrix[0] = cosValue; matrix[2] = -sinValue; matrix[4] = 0.5 - 0.5 * cosValue + 0.5 * sinValue;
+	matrix[1] = sinValue; matrix[3] = cosValue;  matrix[5] = 0.5 - 0.5 * sinValue - 0.5 * cosValue;
 }
-
-/*
-** RB_CalcDiffuseColor
-**
-** The basic vertex lighting calc
-*/
-#if idppc_altivec
-static void RB_CalcDiffuseColor_altivec( unsigned char *colors )
-{
-	int				i;
-	float			*v, *normal;
-	trRefEntity_t	*ent;
-	int				ambientLightInt;
-	vec3_t			lightDir;
-	int				numVertexes;
-	vector unsigned char vSel = VECCONST_UINT8(0x00, 0x00, 0x00, 0xff,
-                                               0x00, 0x00, 0x00, 0xff,
-                                               0x00, 0x00, 0x00, 0xff,
-                                               0x00, 0x00, 0x00, 0xff);
-	vector float ambientLightVec;
-	vector float directedLightVec;
-	vector float lightDirVec;
-	vector float normalVec0, normalVec1;
-	vector float incomingVec0, incomingVec1, incomingVec2;
-	vector float zero, jVec;
-	vector signed int jVecInt;
-	vector signed short jVecShort;
-	vector unsigned char jVecChar, normalPerm;
-	ent = backEnd.currentEntity;
-	ambientLightInt = ent->ambientLightInt;
-	// A lot of this could be simplified if we made sure
-	// entities light info was 16-byte aligned.
-	jVecChar = vec_lvsl(0, ent->ambientLight);
-	ambientLightVec = vec_ld(0, (vector float *)ent->ambientLight);
-	jVec = vec_ld(11, (vector float *)ent->ambientLight);
-	ambientLightVec = vec_perm(ambientLightVec,jVec,jVecChar);
-
-	jVecChar = vec_lvsl(0, ent->directedLight);
-	directedLightVec = vec_ld(0,(vector float *)ent->directedLight);
-	jVec = vec_ld(11,(vector float *)ent->directedLight);
-	directedLightVec = vec_perm(directedLightVec,jVec,jVecChar);	 
-
-	jVecChar = vec_lvsl(0, ent->lightDir);
-	lightDirVec = vec_ld(0,(vector float *)ent->lightDir);
-	jVec = vec_ld(11,(vector float *)ent->lightDir);
-	lightDirVec = vec_perm(lightDirVec,jVec,jVecChar);	 
-
-	zero = (vector float)vec_splat_s8(0);
-	VectorCopy( ent->lightDir, lightDir );
-
-	v = tess.xyz[0];
-	normal = tess.normal[0];
-
-	normalPerm = vec_lvsl(0,normal);
-	numVertexes = tess.numVertexes;
-	for (i = 0 ; i < numVertexes ; i++, v += 4, normal += 4) {
-		normalVec0 = vec_ld(0,(vector float *)normal);
-		normalVec1 = vec_ld(11,(vector float *)normal);
-		normalVec0 = vec_perm(normalVec0,normalVec1,normalPerm);
-		incomingVec0 = vec_madd(normalVec0, lightDirVec, zero);
-		incomingVec1 = vec_sld(incomingVec0,incomingVec0,4);
-		incomingVec2 = vec_add(incomingVec0,incomingVec1);
-		incomingVec1 = vec_sld(incomingVec1,incomingVec1,4);
-		incomingVec2 = vec_add(incomingVec2,incomingVec1);
-		incomingVec0 = vec_splat(incomingVec2,0);
-		incomingVec0 = vec_max(incomingVec0,zero);
-		normalPerm = vec_lvsl(12,normal);
-		jVec = vec_madd(incomingVec0, directedLightVec, ambientLightVec);
-		jVecInt = vec_cts(jVec,0);	// RGBx
-		jVecShort = vec_pack(jVecInt,jVecInt);		// RGBxRGBx
-		jVecChar = vec_packsu(jVecShort,jVecShort);	// RGBxRGBxRGBxRGBx
-		jVecChar = vec_sel(jVecChar,vSel,vSel);		// RGBARGBARGBARGBA replace alpha with 255
-		vec_ste((vector unsigned int)jVecChar,0,(unsigned int *)&colors[i*4]);	// store color
-	}
-}
-#endif
-
-static void RB_CalcDiffuseColor_scalar( unsigned char *colors )
-{
-	int				i, j;
-	float			*v, *normal;
-	float			incoming;
-	trRefEntity_t	*ent;
-	int				ambientLightInt;
-	vec3_t			ambientLight;
-	vec3_t			lightDir;
-	vec3_t			directedLight;
-	int				numVertexes;
-	ent = backEnd.currentEntity;
-	ambientLightInt = ent->ambientLightInt;
-	VectorCopy( ent->ambientLight, ambientLight );
-	VectorCopy( ent->directedLight, directedLight );
-	VectorCopy( ent->lightDir, lightDir );
-
-	v = tess.xyz[0];
-	normal = tess.normal[0];
-
-	numVertexes = tess.numVertexes;
-	for (i = 0 ; i < numVertexes ; i++, v += 4, normal += 4) {
-		incoming = DotProduct (normal, lightDir);
-		if ( incoming <= 0 ) {
-			*(int *)&colors[i*4] = ambientLightInt;
-			continue;
-		} 
-		j = ri.ftol(ambientLight[0] + incoming * directedLight[0]);
-		if ( j > 255 ) {
-			j = 255;
-		}
-		colors[i*4+0] = j;
-
-		j = ri.ftol(ambientLight[1] + incoming * directedLight[1]);
-		if ( j > 255 ) {
-			j = 255;
-		}
-		colors[i*4+1] = j;
-
-		j = ri.ftol(ambientLight[2] + incoming * directedLight[2]);
-		if ( j > 255 ) {
-			j = 255;
-		}
-		colors[i*4+2] = j;
-
-		colors[i*4+3] = 255;
-	}
-}
-
-void RB_CalcDiffuseColor( unsigned char *colors )
-{
-#if idppc_altivec
-	if (com_altivec->integer) {
-		// must be in a seperate function or G3 systems will crash.
-		RB_CalcDiffuseColor_altivec( colors );
-		return;
-	}
-#endif
-	RB_CalcDiffuseColor_scalar( colors );
-}
-
-
-
-
-