From: havoc <havoc@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Sun, 27 Mar 2005 09:15:59 +0000 (+0000)
Subject: fixed backwards bumps in r_shadow_glsl 1 mode
X-Git-Tag: xonotic-v0.1.0preview~5047
X-Git-Url: https://git.rm.cloudns.org/?a=commitdiff_plain;h=10797cdfe6e5ff513c43c40af6df8111e34acb1c;p=xonotic%2Fdarkplaces.git

fixed backwards bumps in r_shadow_glsl 1 mode


git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@5126 d7cf8633-e32d-0410-b094-e92efae38249
---

diff --git a/r_shadow.c b/r_shadow.c
index ee083d24..949c2339 100644
--- a/r_shadow.c
+++ b/r_shadow.c
@@ -273,15 +273,15 @@ const char *builtinshader_light_vert =
 "	// (we use unnormalized to ensure that it interpolates correctly and then\n"
 "	//  normalize it per pixel)\n"
 "	vec3 lightminusvertex = LightPosition - gl_Vertex.xyz;\n"
-"	LightVector.x = dot(lightminusvertex, gl_MultiTexCoord1.xyz);\n"
-"	LightVector.y = dot(lightminusvertex, gl_MultiTexCoord2.xyz);\n"
+"	LightVector.x = -dot(lightminusvertex, gl_MultiTexCoord1.xyz);\n"
+"	LightVector.y = -dot(lightminusvertex, gl_MultiTexCoord2.xyz);\n"
 "	LightVector.z = -dot(lightminusvertex, gl_MultiTexCoord3.xyz);\n"
 "\n"
 "#if defined(USESPECULAR) || defined(USEFOG) || defined(USEOFFSETMAPPING)\n"
 "	// transform unnormalized eye direction into tangent space\n"
 "	vec3 eyeminusvertex = EyePosition - gl_Vertex.xyz;\n"
-"	EyeVector.x = dot(eyeminusvertex, gl_MultiTexCoord1.xyz);\n"
-"	EyeVector.y = dot(eyeminusvertex, gl_MultiTexCoord2.xyz);\n"
+"	EyeVector.x = -dot(eyeminusvertex, gl_MultiTexCoord1.xyz);\n"
+"	EyeVector.y = -dot(eyeminusvertex, gl_MultiTexCoord2.xyz);\n"
 "	EyeVector.z = -dot(eyeminusvertex, gl_MultiTexCoord3.xyz);\n"
 "#endif\n"
 "\n"