From: divverent <divverent@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Fri, 2 Sep 2011 18:25:53 +0000 (+0000)
Subject: enable offsetmapping permutations only if a normalmap exists and no bias is set
X-Git-Tag: xonotic-v0.5.0~4
X-Git-Url: https://git.rm.cloudns.org/?a=commitdiff_plain;h=2579f601bf44e3bb7f6da849e803b22f90a0db3e;p=xonotic%2Fdarkplaces.git

enable offsetmapping permutations only if a normalmap exists and no bias is set

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@11319 d7cf8633-e32d-0410-b094-e92efae38249
::stable-branch::merge=62b9ee6963aae02abb921ef7f451c6313b69b894
---

diff --git a/gl_rmain.c b/gl_rmain.c
index 29095574..b2c7e6f9 100644
--- a/gl_rmain.c
+++ b/gl_rmain.c
@@ -2183,7 +2183,7 @@ void R_SetupShader_Surface(const vec3_t lightcolorbase, qboolean modellighting,
 	}
 	else if (rsurfacepass == RSURFPASS_DEFERREDGEOMETRY)
 	{
-		if (r_glsl_offsetmapping.integer)
+		if (r_glsl_offsetmapping.integer && (rsurface.texture->nmaptexture != r_texture_blanknormalmap || rsurface.texture->offsetbias != 0.0f))
 		{
 			switch(rsurface.texture->offsetmapping)
 			{
@@ -2204,7 +2204,7 @@ void R_SetupShader_Surface(const vec3_t lightcolorbase, qboolean modellighting,
 	}
 	else if (rsurfacepass == RSURFPASS_RTLIGHT)
 	{
-		if (r_glsl_offsetmapping.integer)
+		if (r_glsl_offsetmapping.integer && (rsurface.texture->nmaptexture != r_texture_blanknormalmap || rsurface.texture->offsetbias != 0.0f))
 		{
 			switch(rsurface.texture->offsetmapping)
 			{
@@ -2250,7 +2250,7 @@ void R_SetupShader_Surface(const vec3_t lightcolorbase, qboolean modellighting,
 	}
 	else if (rsurface.texture->currentmaterialflags & MATERIALFLAG_FULLBRIGHT)
 	{
-		if (r_glsl_offsetmapping.integer)
+		if (r_glsl_offsetmapping.integer && (rsurface.texture->nmaptexture != r_texture_blanknormalmap || rsurface.texture->offsetbias != 0.0f))
 		{
 			switch(rsurface.texture->offsetmapping)
 			{
@@ -2303,7 +2303,7 @@ void R_SetupShader_Surface(const vec3_t lightcolorbase, qboolean modellighting,
 	}
 	else if (rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT_DIRECTIONAL)
 	{
-		if (r_glsl_offsetmapping.integer)
+		if (r_glsl_offsetmapping.integer && (rsurface.texture->nmaptexture != r_texture_blanknormalmap || rsurface.texture->offsetbias != 0.0f))
 		{
 			switch(rsurface.texture->offsetmapping)
 			{
@@ -2366,7 +2366,7 @@ void R_SetupShader_Surface(const vec3_t lightcolorbase, qboolean modellighting,
 	}
 	else if (rsurface.texture->currentmaterialflags & MATERIALFLAG_MODELLIGHT)
 	{
-		if (r_glsl_offsetmapping.integer)
+		if (r_glsl_offsetmapping.integer && (rsurface.texture->nmaptexture != r_texture_blanknormalmap || rsurface.texture->offsetbias != 0.0f))
 		{
 			switch(rsurface.texture->offsetmapping)
 			{
@@ -2426,7 +2426,7 @@ void R_SetupShader_Surface(const vec3_t lightcolorbase, qboolean modellighting,
 	}
 	else
 	{
-		if (r_glsl_offsetmapping.integer)
+		if (r_glsl_offsetmapping.integer && (rsurface.texture->nmaptexture != r_texture_blanknormalmap || rsurface.texture->offsetbias != 0.0f))
 		{
 			switch(rsurface.texture->offsetmapping)
 			{