Correct spelling mistakes.

code/renderergl2/tr_backend.c

@@ -471,7 +471,7 @@ void RB_RenderDrawSurfList( drawSurf_t *drawSurfs, int numDrawSurfs ) {
 
 		//
 		// change the tess parameters if needed
-		// a "entityMergable" shader is a shader that can have surfaces from seperate
+		// a "entityMergable" shader is a shader that can have surfaces from separate
 		// entities merged into a single batch, like smoke and blood puff sprites
 		if ( shader != NULL && ( shader != oldShader || fogNum != oldFogNum || dlighted != oldDlighted || pshadowed != oldPshadowed || cubemapIndex != oldCubemapIndex
 			|| ( entityNum != oldEntityNum && !shader->entityMergable ) ) ) {
@@ -689,7 +689,7 @@ void RE_StretchRaw (int x, int y, int w, int h, int cols, int rows, const byte *
 		RB_EndSurface();
 	}
 
-	// we definately want to sync every frame for the cinematics
+	// we definitely want to sync every frame for the cinematics
 	qglFinish();
 
 	start = 0;

code/renderergl2/tr_bsp.c

@@ -1947,7 +1947,7 @@ static	void R_LoadNodesAndLeafs (lump_t *nodeLump, lump_t *leafLump) {
 		out->nummarksurfaces = LittleLong(inLeaf->numLeafSurfaces);
 	}	
 
-	// chain decendants
+	// chain descendants
 	R_SetParent (s_worldData.nodes, NULL);
 }
 

code/renderergl2/tr_fbo.c

@@ -37,7 +37,7 @@ qboolean R_CheckFBO(const FBO_t * fbo)
 	if(code == GL_FRAMEBUFFER_COMPLETE)
 		return qtrue;
 
-	// an error occured
+	// an error occurred
 	switch (code)
 	{
 		case GL_FRAMEBUFFER_UNSUPPORTED:

code/renderergl2/tr_image.c

@@ -2286,7 +2286,7 @@ static int numImageLoaders = ARRAY_LEN( imageLoaders );
 =================
 R_LoadImage
 
-Loads any of the supported image types into a cannonical
+Loads any of the supported image types into a canonical
 32 bit format.
 =================
 */
@@ -2951,7 +2951,7 @@ SKINS
 CommaParse
 
 This is unfortunate, but the skin files aren't
-compatable with our normal parsing rules.
+compatible with our normal parsing rules.
 ==================
 */
 static char *CommaParse( char **data_p ) {

code/renderergl2/tr_light.c

@@ -138,7 +138,7 @@ static void R_SetupEntityLightingGrid( trRefEntity_t *ent, world_t *world ) {
 	float	totalFactor;
 
 	if ( ent->e.renderfx & RF_LIGHTING_ORIGIN ) {
-		// seperate lightOrigins are needed so an object that is
+		// separate lightOrigins are needed so an object that is
 		// sinking into the ground can still be lit, and so
 		// multi-part models can be lit identically
 		VectorCopy( ent->e.lightingOrigin, lightOrigin );
@@ -335,7 +335,7 @@ void R_SetupEntityLighting( const trRefdef_t *refdef, trRefEntity_t *ent ) {
 	// trace a sample point down to find ambient light
 	//
 	if ( ent->e.renderfx & RF_LIGHTING_ORIGIN ) {
-		// seperate lightOrigins are needed so an object that is
+		// separate lightOrigins are needed so an object that is
 		// sinking into the ground can still be lit, and so
 		// multi-part models can be lit identically
 		VectorCopy( ent->e.lightingOrigin, lightOrigin );

code/renderergl2/tr_local.h

@@ -1392,7 +1392,7 @@ typedef struct {
 	int		msec;			// total msec for backend run
 } backEndCounters_t;
 
-// all state modified by the back end is seperated
+// all state modified by the back end is separated
 // from the front end state
 typedef struct {
 	trRefdef_t	refdef;

code/renderergl2/tr_shade.c

@@ -341,7 +341,7 @@ static void ProjectDlightTexture( void ) {
 		vec4_t vector;
 
 		if ( !( tess.dlightBits & ( 1 << l ) ) ) {
-			continue;	// this surface definately doesn't have any of this light
+			continue;	// this surface definitely doesn't have any of this light
 		}
 
 		dl = &backEnd.refdef.dlights[l];
@@ -672,7 +672,7 @@ static void ForwardDlight( void ) {
 		vec4_t texOffTurb;
 
 		if ( !( tess.dlightBits & ( 1 << l ) ) ) {
-			continue;	// this surface definately doesn't have any of this light
+			continue;	// this surface definitely doesn't have any of this light
 		}
 
 		dl = &backEnd.refdef.dlights[l];
@@ -836,7 +836,7 @@ static void ProjectPshadowVBOGLSL( void ) {
 		vec4_t vector;
 
 		if ( !( tess.pshadowBits & ( 1 << l ) ) ) {
-			continue;	// this surface definately doesn't have any of this shadow
+			continue;	// this surface definitely doesn't have any of this shadow
 		}
 
 		ps = &backEnd.refdef.pshadows[l];

code/renderergl2/tr_shade_calc.c

@@ -350,7 +350,7 @@ static void GlobalVectorToLocal( const vec3_t in, vec3_t out ) {
 =====================
 AutospriteDeform
 
-Assuming all the triangles for this shader are independant
+Assuming all the triangles for this shader are independent
 quads, rebuild them as forward facing sprites
 =====================
 */

code/renderergl2/tr_shader.c

@@ -2794,7 +2794,7 @@ static shader_t *GeneratePermanentShader( void ) {
 VertexLightingCollapse
 
 If vertex lighting is enabled, only render a single
-pass, trying to guess which is the correct one to best aproximate
+pass, trying to guess which is the correct one to best approximate
 what it is supposed to look like.
 =================
 */
@@ -3214,18 +3214,18 @@ be defined for every single image used in the game, three default
 shader behaviors can be auto-created for any image:
 
 If lightmapIndex == LIGHTMAP_NONE, then the image will have
-dynamic diffuse lighting applied to it, as apropriate for most
+dynamic diffuse lighting applied to it, as appropriate for most
 entity skin surfaces.
 
 If lightmapIndex == LIGHTMAP_2D, then the image will be used
 for 2D rendering unless an explicit shader is found
 
 If lightmapIndex == LIGHTMAP_BY_VERTEX, then the image will use
-the vertex rgba modulate values, as apropriate for misc_model
+the vertex rgba modulate values, as appropriate for misc_model
 pre-lit surfaces.
 
 Other lightmapIndex values will have a lightmap stage created
-and src*dest blending applied with the texture, as apropriate for
+and src*dest blending applied with the texture, as appropriate for
 most world construction surfaces.
 
 ===============