Fix missing tess.surfaceShader set in MarkShaderBuild()

Author: VReaperV

src/engine/renderer/GeometryOptimiser.cpp

@@ -122,8 +122,9 @@ void MarkShaderBuildFog( const shaderStage_t* pStage ) {
 	gl_fogQuake3Shader->MarkProgramForBuilding( 0 );
 }
 
-void MarkShaderBuild( const shader_t* shader, const int lightMapNum, const bool bspSurface,
+void MarkShaderBuild( shader_t* shader, const int lightMapNum, const bool bspSurface,
 	const bool vertexSkinning, const bool vertexAnimation ) {
+	tess.surfaceShader = shader;
 	tess.bspSurface = bspSurface;
 	tess.lightmapNum = lightMapNum;
 

src/engine/renderer/GeometryOptimiser.h

@@ -113,7 +113,7 @@ void MarkShaderBuildIQM( const IQModel_t* model );
 void MarkShaderBuildMDV( const mdvModel_t* model );
 void MarkShaderBuildMD5( const md5Model_t* model );
 
-void MarkShaderBuild( const shader_t* shader, const int lightMapNum, const bool bspSurface,
+void MarkShaderBuild( shader_t* shader, const int lightMapNum, const bool bspSurface,
 	const bool vertexSkinning, const bool vertexAnimation );
 
 void OptimiseMapGeometryCore( world_t* world, bspSurface_t** rendererSurfaces, int numSurfaces );