+// bsp models
+void Mod_BrushInit(void);
+// used for talking to the QuakeC mainly
+int Mod_Q1BSP_NativeContentsFromSuperContents(struct model_s *model, int supercontents);
+int Mod_Q1BSP_SuperContentsFromNativeContents(struct model_s *model, int nativecontents);
+
+// a lot of model formats use the Q1BSP code, so here are the prototypes...
+struct entity_render_s;
+void R_Q1BSP_DrawSky(struct entity_render_s *ent);
+void R_Q1BSP_Draw(struct entity_render_s *ent);
+void R_Q1BSP_GetLightInfo(struct entity_render_s *ent, vec3_t relativelightorigin, float lightradius, vec3_t outmins, vec3_t outmaxs, int *outleaflist, unsigned char *outleafpvs, int *outnumleafspointer, int *outsurfacelist, unsigned char *outsurfacepvs, int *outnumsurfacespointer);
+void R_Q1BSP_CompileShadowVolume(struct entity_render_s *ent, vec3_t relativelightorigin, float lightradius, int numsurfaces, const int *surfacelist);
+void R_Q1BSP_DrawShadowVolume(struct entity_render_s *ent, vec3_t relativelightorigin, float lightradius, int numsurfaces, const int *surfacelist, const vec3_t lightmins, const vec3_t lightmaxs);
+void R_Q1BSP_DrawLight(struct entity_render_s *ent, int numsurfaces, const int *surfacelist);
+
+// alias models
+struct frameblend_s;
+void Mod_AliasInit(void);
+void Mod_Alias_GetMesh_Vertex3f(const model_t *model, const struct frameblend_s *frameblend, const struct surfmesh_s *mesh, float *out3f);
+int Mod_Alias_GetTagMatrix(const model_t *model, int poseframe, int tagindex, matrix4x4_t *outmatrix);
+int Mod_Alias_GetTagIndexForName(const model_t *model, unsigned int skin, const char *tagname);
+
+// sprite models
+void Mod_SpriteInit(void);
+
+// loaders
+void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend);
+void Mod_IBSP_Load(model_t *mod, void *buffer, void *bufferend);
+void Mod_MAP_Load(model_t *mod, void *buffer, void *bufferend);
+void Mod_IDP0_Load(model_t *mod, void *buffer, void *bufferend);
+void Mod_IDP2_Load(model_t *mod, void *buffer, void *bufferend);
+void Mod_IDP3_Load(model_t *mod, void *buffer, void *bufferend);
+void Mod_ZYMOTICMODEL_Load(model_t *mod, void *buffer, void *bufferend);
+void Mod_DARKPLACESMODEL_Load(model_t *mod, void *buffer, void *bufferend);
+void Mod_PSKMODEL_Load(model_t *mod, void *buffer, void *bufferend);
+void Mod_IDSP_Load(model_t *mod, void *buffer, void *bufferend);
+void Mod_IDS2_Load(model_t *mod, void *buffer, void *bufferend);
+