+// a lot of model formats use the Q1BSP code, so here are the prototypes...
+struct entity_render_s;
+void R_Q1BSP_DrawAddWaterPlanes(struct entity_render_s *ent);
+void R_Q1BSP_DrawSky(struct entity_render_s *ent);
+void R_Q1BSP_Draw(struct entity_render_s *ent);
+void R_Q1BSP_DrawDepth(struct entity_render_s *ent);
+void R_Q1BSP_DrawDebug(struct entity_render_s *ent);
+void R_Q1BSP_DrawPrepass(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, unsigned char *outshadowtrispvs, unsigned char *outlighttrispvs, unsigned char *visitingleafpvs, int numfrustumplanes, const mplane_t *frustumplanes);
+void R_Q1BSP_CompileShadowMap(struct entity_render_s *ent, vec3_t relativelightorigin, vec3_t relativelightdirection, float lightradius, int numsurfaces, const int *surfacelist);
+void R_Q1BSP_DrawShadowMap(int side, struct entity_render_s *ent, const vec3_t relativelightorigin, const vec3_t relativelightdirection, float lightradius, int modelnumsurfaces, const int *modelsurfacelist, const unsigned char *surfacesides, const vec3_t lightmins, const vec3_t lightmaxs);
+void R_Q1BSP_CompileShadowVolume(struct entity_render_s *ent, vec3_t relativelightorigin, vec3_t relativelightdirection, float lightradius, int numsurfaces, const int *surfacelist);
+void R_Q1BSP_DrawShadowVolume(struct entity_render_s *ent, const vec3_t relativelightorigin, const vec3_t relativelightdirection, 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, const unsigned char *trispvs);
+
+// alias models
+struct frameblend_s;
+struct skeleton_s;
+void Mod_AliasInit(void);
+int Mod_Alias_GetTagMatrix(const dp_model_t *model, const struct frameblend_s *frameblend, const struct skeleton_s *skeleton, int tagindex, matrix4x4_t *outmatrix);
+int Mod_Alias_GetTagIndexForName(const dp_model_t *model, unsigned int skin, const char *tagname);
+int Mod_Alias_GetExtendedTagInfoForIndex(const dp_model_t *model, unsigned int skin, const struct frameblend_s *frameblend, const struct skeleton_s *skeleton, int tagindex, int *parentindex, const char **tagname, matrix4x4_t *tag_localmatrix);
+
+// sprite models
+void Mod_SpriteInit(void);
+
+// loaders
+void Mod_Q1BSP_Load(dp_model_t *mod, void *buffer, void *bufferend);
+void Mod_IBSP_Load(dp_model_t *mod, void *buffer, void *bufferend);
+void Mod_MAP_Load(dp_model_t *mod, void *buffer, void *bufferend);
+void Mod_OBJ_Load(dp_model_t *mod, void *buffer, void *bufferend);
+void Mod_IDP0_Load(dp_model_t *mod, void *buffer, void *bufferend);
+void Mod_IDP2_Load(dp_model_t *mod, void *buffer, void *bufferend);
+void Mod_IDP3_Load(dp_model_t *mod, void *buffer, void *bufferend);
+void Mod_ZYMOTICMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend);
+void Mod_DARKPLACESMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend);
+void Mod_PSKMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend);
+void Mod_IDSP_Load(dp_model_t *mod, void *buffer, void *bufferend);
+void Mod_IDS2_Load(dp_model_t *mod, void *buffer, void *bufferend);
+
+#endif // MODEL_SHARED_H