diff --git a/libs/models/brush/glsl_model_brush.c b/libs/models/brush/glsl_model_brush.c
index 8827844da..e840e0b29 100644
--- a/libs/models/brush/glsl_model_brush.c
+++ b/libs/models/brush/glsl_model_brush.c
@@ -132,11 +132,6 @@ glsl_Mod_ProcessTexture (texture_t *tx)
 	}
 }
 
-void
-glsl_Mod_LoadExternalTextures (model_t *mod)
-{
-}
-
 void
 glsl_Mod_LoadLighting (bsp_t *bsp)
 {
@@ -150,8 +145,3 @@ glsl_Mod_LoadLighting (bsp_t *bsp)
 	loadmodel->lightdata = Hunk_AllocName (bsp->lightdatasize, loadname);
 	memcpy (loadmodel->lightdata, bsp->lightdata, bsp->lightdatasize);
 }
-
-void
-glsl_Mod_SubdivideSurface (msurface_t *fa)
-{
-}
diff --git a/libs/models/brush/model_brush.c b/libs/models/brush/model_brush.c
index c81fbabe9..19d28a8c6 100644
--- a/libs/models/brush/model_brush.c
+++ b/libs/models/brush/model_brush.c
@@ -204,7 +204,7 @@ Mod_LoadTextures (bsp_t *bsp)
 
 		if (!strncmp (mt->name, "sky", 3))
 			loadmodel->skytexture = tx;
-		if (mod_funcs)
+		if (mod_funcs && mod_funcs->Mod_ProcessTexture)
 			mod_funcs->Mod_ProcessTexture (tx);
 	}
 
@@ -539,7 +539,7 @@ Mod_LoadFaces (bsp_t *bsp)
 		if (!strncmp (out->texinfo->texture->name, "sky", 3)) {	// sky
 			out->flags |= (SURF_DRAWSKY | SURF_DRAWTILED);
 			if (gl_sky_divide && gl_sky_divide->int_val)
-				if (mod_funcs)
+				if (mod_funcs && mod_funcs->Mod_SubdivideSurface)
 					mod_funcs->Mod_SubdivideSurface (out);
 			continue;
 		}
@@ -552,8 +552,10 @@ Mod_LoadFaces (bsp_t *bsp)
 				out->extents[i] = 16384;
 				out->texturemins[i] = -8192;
 			}
-			if (mod_funcs)	// cut up polygon for warps
+			if (mod_funcs && mod_funcs->Mod_SubdivideSurface) {
+				// cut up polygon for warps
 				mod_funcs->Mod_SubdivideSurface (out);
+			}
 			continue;
 		}
 	}
@@ -915,8 +917,9 @@ Mod_LoadBrushModel (model_t *mod, void *buffer)
 	Mod_LoadEdges (bsp);
 	Mod_LoadSurfedges (bsp);
 	Mod_LoadTextures (bsp);
-	if (mod_funcs)
+	if (mod_funcs && mod_funcs->Mod_LoadLighting) {
 		mod_funcs->Mod_LoadLighting (bsp);
+	}
 	Mod_LoadPlanes (bsp);
 	Mod_LoadTexinfo (bsp);
 	Mod_LoadFaces (bsp);
diff --git a/libs/models/brush/sw_model_brush.c b/libs/models/brush/sw_model_brush.c
index c78cd12b4..1f179bab2 100644
--- a/libs/models/brush/sw_model_brush.c
+++ b/libs/models/brush/sw_model_brush.c
@@ -40,22 +40,6 @@
 
 #include "mod_internal.h"
 
-
-void
-sw_Mod_SubdivideSurface (msurface_t *fa)
-{
-}
-
-void
-sw_Mod_ProcessTexture (texture_t *tx)
-{
-}
-
-void
-sw_Mod_LoadExternalTextures (model_t *mod)
-{
-}
-
 void
 sw_Mod_LoadLighting (bsp_t *bsp)
 {
diff --git a/libs/models/null_model.c b/libs/models/null_model.c
index 18cb987c1..6f482cc01 100644
--- a/libs/models/null_model.c
+++ b/libs/models/null_model.c
@@ -48,26 +48,11 @@ Mod_LoadSpriteModel (model_t *mod, void *buf)
 {
 }
 
-void
-Mod_ProcessTexture (texture_t *tx)
-{
-}
-
 void
 Mod_LoadExternalSkins (model_t *mod)
 {
 }
 
-void
-Mod_LoadExternalTextures (model_t *mod)
-{
-}
-
-void
-Mod_SubdivideSurface (msurface_t *fa)
-{
-}
-
 viddef_t    vid;
 
 VISIBLE void
diff --git a/libs/video/renderer/vid_render_glsl.c b/libs/video/renderer/vid_render_glsl.c
index 25bdb9224..6d6c87b3a 100644
--- a/libs/video/renderer/vid_render_glsl.c
+++ b/libs/video/renderer/vid_render_glsl.c
@@ -46,9 +46,9 @@
 gl_ctx_t *glsl_ctx;
 
 static vid_model_funcs_t model_funcs = {
-	glsl_Mod_LoadExternalTextures,
+	0,//Mod_LoadExternalTextures,
 	glsl_Mod_LoadLighting,
-	glsl_Mod_SubdivideSurface,
+	0,//Mod_SubdivideSurface,
 	glsl_Mod_ProcessTexture,
 
 	Mod_LoadIQM,
diff --git a/libs/video/renderer/vid_render_sw.c b/libs/video/renderer/vid_render_sw.c
index 02ff562e6..8c5360701 100644
--- a/libs/video/renderer/vid_render_sw.c
+++ b/libs/video/renderer/vid_render_sw.c
@@ -39,10 +39,10 @@
 sw_ctx_t *sw_ctx;
 
 static vid_model_funcs_t model_funcs = {
-	sw_Mod_LoadExternalTextures,
+	0,//Mod_LoadExternalTextures,
 	sw_Mod_LoadLighting,
-	sw_Mod_SubdivideSurface,
-	sw_Mod_ProcessTexture,
+	0,//Mod_SubdivideSurface,
+	0,//Mod_ProcessTexture,
 
 	Mod_LoadIQM,
 	Mod_LoadAliasModel,
diff --git a/libs/video/renderer/vid_render_sw32.c b/libs/video/renderer/vid_render_sw32.c
index 97097e2ad..af72bc0df 100644
--- a/libs/video/renderer/vid_render_sw32.c
+++ b/libs/video/renderer/vid_render_sw32.c
@@ -44,10 +44,10 @@
 sw_ctx_t *sw32_ctx;
 
 static vid_model_funcs_t model_funcs = {
-	sw_Mod_LoadExternalTextures,
+	0,//Mod_LoadExternalTextures,
 	sw_Mod_LoadLighting,
-	sw_Mod_SubdivideSurface,
-	sw_Mod_ProcessTexture,
+	0,//Mod_SubdivideSurface,
+	0,//Mod_ProcessTexture,
 
 	Mod_LoadIQM,
 	Mod_LoadAliasModel,