Correct spelling mistakes.

code/renderergl1/tr_backend.c

@@ -541,7 +541,7 @@ 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 
 			|| ( entityNum != oldEntityNum && !shader->entityMergable ) ) ) {
@@ -742,7 +742,7 @@ 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/renderergl1/tr_bsp.c

@@ -1428,7 +1428,7 @@ 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/renderergl1/tr_image.c

@@ -941,7 +941,7 @@ 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.
 =================
 */
@@ -1400,7 +1400,7 @@ 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/renderergl1/tr_light.c

@@ -134,7 +134,7 @@ static void R_SetupEntityLightingGrid( trRefEntity_t *ent ) {
 	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 );
@@ -304,7 +304,7 @@ 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/renderergl1/tr_local.h

@@ -840,7 +840,7 @@ 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;
@@ -981,7 +981,7 @@ extern cvar_t	*r_measureOverdraw;		// enables stencil buffer overdraw measuremen
 extern cvar_t	*r_lodbias;				// push/pull LOD transitions
 extern cvar_t	*r_lodscale;
 
-extern cvar_t	*r_primitives;			// "0" = based on compiled vertex array existance
+extern cvar_t	*r_primitives;			// "0" = based on compiled vertex array existence
 										// "1" = glDrawElemet tristrips
 										// "2" = glDrawElements triangles
 										// "-1" = no drawing

code/renderergl1/tr_shade.c

@@ -448,7 +448,7 @@ static void ProjectDlightTexture_altivec( void ) {
 		dlight_t	*dl;
 
 		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
 		}
 		texCoords = texCoordsArray[0];
 		colors = colorArray[0];
@@ -613,7 +613,7 @@ static void ProjectDlightTexture_scalar( void ) {
 		dlight_t	*dl;
 
 		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
 		}
 		texCoords = texCoordsArray[0];
 		colors = colorArray[0];
@@ -745,7 +745,7 @@ static void ProjectDlightTexture_scalar( void ) {
 static void ProjectDlightTexture( void ) {
 #if idppc_altivec
 	if (com_altivec->integer) {
-		// must be in a seperate function or G3 systems will crash.
+		// must be in a separate function or G3 systems will crash.
 		ProjectDlightTexture_altivec();
 		return;
 	}

code/renderergl1/tr_shade_calc.c

@@ -345,7 +345,7 @@ 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
 =====================
 */
@@ -1206,7 +1206,7 @@ void RB_CalcDiffuseColor( unsigned char *colors )
 {
 #if idppc_altivec
 	if (com_altivec->integer) {
-		// must be in a seperate function or G3 systems will crash.
+		// must be in a separate function or G3 systems will crash.
 		RB_CalcDiffuseColor_altivec( colors );
 		return;
 	}

code/renderergl1/tr_shader.c

@@ -2088,7 +2088,7 @@ 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.
 =================
 */
@@ -2493,18 +2493,18 @@ 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.
 
 ===============
@@ -2551,7 +2551,7 @@ shader_t *R_FindShader( const char *name, int lightmapIndex, qboolean mipRawImag
 
 	InitShader( strippedName, lightmapIndex );
 
-	// FIXME: set these "need" values apropriately
+	// FIXME: set these "need" values appropriately
 	shader.needsNormal = qtrue;
 	shader.needsST1 = qtrue;
 	shader.needsST2 = qtrue;
@@ -2689,7 +2689,7 @@ qhandle_t RE_RegisterShaderFromImage(const char *name, int lightmapIndex, image_
 
 	InitShader( name, lightmapIndex );
 
-	// FIXME: set these "need" values apropriately
+	// FIXME: set these "need" values appropriately
 	shader.needsNormal = qtrue;
 	shader.needsST1 = qtrue;
 	shader.needsST2 = qtrue;

code/renderergl1/tr_surface.c

@@ -569,7 +569,7 @@ static void VectorArrayNormalize(vec4_t *normals, unsigned int count)
         
         // Vanilla PPC code, but since PPC has a reciprocal square root estimate instruction,
         // runs *much* faster than calling sqrt().  We'll use a single Newton-Raphson
-        // refinement step to get a little more precision.  This seems to yeild results
+        // refinement step to get a little more precision.  This seems to yield results
         // that are correct to 3 decimal places and usually correct to at least 4 (sometimes 5).
         // (That is, for the given input range of about 0.6 to 2.0).
         do {
@@ -844,7 +844,7 @@ static void LerpMeshVertexes(md3Surface_t *surf, float backlerp)
 {
 #if idppc_altivec
 	if (com_altivec->integer) {
-		// must be in a seperate function or G3 systems will crash.
+		// must be in a separate function or G3 systems will crash.
 		LerpMeshVertexes_altivec( surf, backlerp );
 		return;
 	}