// mark and sweep garbage collection, this value is updated to a new value
// on each level change for the used skinframes, if some are not used they
// are freed
- int loadsequence;
+ unsigned int loadsequence;
// indicates whether this texture has transparent pixels
qboolean hasalpha;
// average texture color, if applicable
// vertex and index buffers for rendering
r_meshbuffer_t *vertexmesh_vertexbuffer;
+
+ // dynamic mesh building support (Mod_Mesh_*)
+ int num_vertexhashsize; // always pow2 for simple masking
+ int *data_vertexhash; // hash table - wrapping buffer for storing index of similar vertex with -1 as terminator
+ int max_vertices; // preallocated size of data_vertex3f and friends (always >= num_vertices)
+ int max_triangles; // preallocated size of data_element3i
}
surfmesh_t;
#define TEXTURE_MAXFRAMES 64
#define Q3WAVEPARMS 4
#define Q3DEFORM_MAXPARMS 3
-#define Q3SHADER_MAXLAYERS 2 // FIXME support more than that (currently only two are used, so why keep more in RAM?)
+#define Q3SHADER_MAXLAYERS 8
#define Q3RGBGEN_MAXPARMS 3
#define Q3ALPHAGEN_MAXPARMS 1
#define Q3TCGEN_MAXPARMS 6
int clampmap;
float framerate;
int numframes;
- int texflags;
+ int dptexflags;
char** texturename;
int blendfunc[2];
q3shaderinfo_layer_rgbgen_t rgbgen;
qboolean lighting;
qboolean vertexalpha;
qboolean textureblendalpha;
- int primarylayer, backgroundlayer;
q3shaderinfo_layer_t layers[Q3SHADER_MAXLAYERS];
char skyboxname[Q3PATHLENGTH];
q3shaderinfo_deform_t deforms[Q3MAXDEFORMS];
}
q3shaderinfo_t;
+typedef struct texture_shaderpass_s
+{
+ qboolean alphatest; // FIXME: handle alphafunc properly
+ float framerate;
+ int numframes;
+ skinframe_t *skinframes[TEXTURE_MAXFRAMES];
+ int blendfunc[2];
+ q3shaderinfo_layer_rgbgen_t rgbgen;
+ q3shaderinfo_layer_alphagen_t alphagen;
+ q3shaderinfo_layer_tcgen_t tcgen;
+ q3shaderinfo_layer_tcmod_t tcmods[Q3MAXTCMODS];
+}
+texture_shaderpass_t;
+
typedef enum texturelayertype_e
{
TEXTURELAYERTYPE_INVALID,
int basematerialflags;
// current material flags (updated each bmodel render)
int currentmaterialflags;
+ // base material alpha (used for Q2 materials)
+ float basealpha;
// PolygonOffset values for rendering this material
// (these are added to the r_refdef values and submodel values)
float biaspolygonfactor;
float biaspolygonoffset;
- // textures to use when rendering this material
+ // textures to use when rendering this material (derived from materialshaderpass)
skinframe_t *currentskinframe;
- int numskinframes;
- float skinframerate;
- skinframe_t *skinframes[TEXTURE_MAXFRAMES];
- // background layer (for terrain texture blending)
+ // textures to use for terrain texture blending (derived from backgroundshaderpass)
skinframe_t *backgroundcurrentskinframe;
- int backgroundnumskinframes;
- float backgroundskinframerate;
- skinframe_t *backgroundskinframes[TEXTURE_MAXFRAMES];
// total frames in sequence and alternate sequence
int anim_total[2];
// direct pointers to each of the frames in the sequences
// (indexed as [alternate][frame])
struct texture_s *anim_frames[2][10];
- // set if animated or there is an alternate frame set
- // (this is an optimization in the renderer)
+ // 1 = q1bsp animation with anim_total[0] >= 2 (animated) or anim_total[1] >= 1 (alternate frame set)
+ // 2 = q2bsp animation with anim_total[0] >= 2 (uses self.frame)
int animated;
// renderer checks if this texture needs updating...
int update_lastrenderframe;
void *update_lastrenderentity;
- // the current alpha of this texture (may be affected by r_wateralpha)
+ // the current alpha of this texture (may be affected by r_wateralpha, also basealpha, and ent->alpha)
float currentalpha;
// the current texture frame in animation
struct texture_s *currentframe;
matrix4x4_t currentbackgroundtexmatrix;
// various q3 shader features
- q3shaderinfo_layer_rgbgen_t rgbgen;
- q3shaderinfo_layer_alphagen_t alphagen;
- q3shaderinfo_layer_tcgen_t tcgen;
- q3shaderinfo_layer_tcmod_t tcmods[Q3MAXTCMODS];
- q3shaderinfo_layer_tcmod_t backgroundtcmods[Q3MAXTCMODS];
q3shaderinfo_deform_t deforms[Q3MAXDEFORMS];
+ texture_shaderpass_t *shaderpasses[Q3SHADER_MAXLAYERS]; // all shader passes in one array
+ texture_shaderpass_t *materialshaderpass; // equal to one of shaderpasses[] or NULL
+ texture_shaderpass_t *backgroundshaderpass; // equal to one of shaderpasses[] or NULL
+ unsigned char startpreshaderpass; // range within shaderpasses[]
+ unsigned char endpreshaderpass; // number of preshaderpasses
+ unsigned char startpostshaderpass; // range within shaderpasses[]
+ unsigned char endpostshaderpass; // number of postshaderpasses
qboolean colormapping;
rtexture_t *basetexture; // original texture without pants/shirt/glow
rtexture_t *backgroundnmaptexture; // normalmap (bumpmap for dot3)
rtexture_t *backgroundglosstexture; // glossmap (for dot3)
rtexture_t *backgroundglowtexture; // glow only (fullbrights)
- float specularscale;
float specularpower;
- // color tint (colormod * currentalpha) used for rtlighting this material
- float dlightcolor[3];
- // color tint (colormod * 2) used for lightmapped lighting on this material
- // includes alpha as 4th component
- // replaces role of gl_Color in GLSL shader
- float lightmapcolor[4];
+
+ // rendering parameters - updated by R_GetCurrentTexture using rsurface.render_* fields
+ // (almost) all map textures are lightmap (no MATERIALFLAG_MODELLIGHT set),
+ // (almost) all model textures are MATERIALFLAG_MODELLIGHT,
+ // MATERIALFLAG_FULLBRIGHT is rendered as a forced MATERIALFLAG_MODELLIGHT with rtlights disabled
+ float render_glowmod[3];
+ // MATERIALFLAG_MODELLIGHT uses these parameters
+ float render_modellight_ambient[3];
+ float render_modellight_diffuse[3];
+ float render_modellight_lightdir[3];
+ float render_modellight_specular[3];
+ // lightmap rendering (not MATERIALFLAG_MODELLIGHT)
+ float render_lightmap_ambient[3];
+ float render_lightmap_diffuse[3];
+ float render_lightmap_specular[3];
+ // rtlights use these colors for the materials on this entity
+ float render_rtlight_diffuse[3];
+ float render_rtlight_specular[3];
+ // tint applied on top of render_*_diffuse for pants layer
+ float render_colormap_pants[3];
+ // tint applied on top of render_*_diffuse for shirt layer
+ float render_colormap_shirt[3];
// from q3 shaders
int customblendfunc[2];
char name[64];
int surfaceflags;
int supercontents;
- int textureflags;
+
+ // q2bsp
+ // we have to load the texture multiple times when Q2SURF_ flags differ,
+ // though it still shares the skinframe
+ int q2flags;
+ int q2value;
+ int q2contents;
+
+ // q1qsp
+ /// this points to a variant of the sky texture that has MATERIALFLAG_NOSHADOW, for the e1m5 logo shadow trick.
+ struct texture_s *skynoshadowtexture;
// reflection
float reflectmin; // when refraction is used, minimum amount of reflection (when looking straight down)
typedef struct mtexinfo_s
{
- float vecs[2][4];
- texture_t *texture;
- int flags;
+ float vecs[2][4]; // [s/t][xyz offset]
+ int textureindex;
+ int q1flags;
+ int q2flags; // miptex flags + overrides
+ int q2value; // light emission, etc
+ char q2texture[32]; // texture name (textures/*.wal)
+ int q2nexttexinfo; // for animations, -1 = end of chain
}
mtexinfo_t;
int deprecatedq3num_bboxstride;
// FIXME: collisionmarkframe should be kept in a separate array
int deprecatedq3collisionmarkframe; // q3bsp // don't collide twice in one trace
+
+ // used by Mod_Mesh_Finalize when building sortedmodelsurfaces
+ qboolean included;
}
msurface_t;
qboolean isbsp2rmqe;
// true if this model is a BSP2 .bsp file (expanded 32bit bsp format for DarkPlaces, others?)
qboolean isbsp2;
+ // true if this model is a Quake2 .bsp file (IBSP38)
+ qboolean isq2bsp;
+ // true if this model is a Quake3 .bsp file (IBSP46)
+ qboolean isq3bsp;
+ // true if this model is a Quake1/Quake2 .bsp file where skymasking capability exists
+ qboolean skymasking;
// string of entity definitions (.map format)
char *entities;
shadowmesh_t *collisionmesh;
// common functions
- int (*SuperContentsFromNativeContents)(struct model_s *model, int nativecontents);
- int (*NativeContentsFromSuperContents)(struct model_s *model, int supercontents);
+ int (*SuperContentsFromNativeContents)(int nativecontents);
+ int (*NativeContentsFromSuperContents)(int supercontents);
unsigned char *(*GetPVS)(struct model_s *model, const vec3_t p);
int (*FatPVS)(struct model_s *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbufferlength, qboolean merge);
int (*BoxTouchingPVS)(struct model_s *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs);
void (*AmbientSoundLevelsForPoint)(struct model_s *model, const vec3_t p, unsigned char *out, int outsize);
void (*RoundUpToHullSize)(struct model_s *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs);
// trace a line of sight through this model (returns false if the line if sight is definitely blocked)
- qboolean (*TraceLineOfSight)(struct model_s *model, const vec3_t start, const vec3_t end);
+ qboolean (*TraceLineOfSight)(struct model_s *model, const vec3_t start, const vec3_t end, const vec3_t acceptmins, const vec3_t acceptmaxs);
char skybox[MAX_QPATH];
}
model_brushq1_t;
-/* MSVC can't compile empty structs, so this is commented out for now
typedef struct model_brushq2_s
{
+ int dummy; // MSVC can't handle an empty struct
}
model_brushq2_t;
-*/
typedef struct model_brushq3_s
{
float *data_baseboneposeinverse;
// textures of this model
int num_textures;
+ int max_textures; // preallocated for expansion (Mod_Mesh_*)
int num_texturesperskin;
texture_t *data_textures;
qboolean wantnormals;
qboolean wanttangents;
// surfaces of this model
int num_surfaces;
+ int max_surfaces; // preallocated for expansion (Mod_Mesh_*)
msurface_t *data_surfaces;
// optional lightmapinfo data for surface lightmap updates
msurface_lightmapinfo_t *data_surfaces_lightmapinfo;
// draw depth into a shadowmap
void(*DrawShadowMap)(int side, struct entity_render_s *ent, const vec3_t relativelightorigin, const vec3_t relativelightdirection, float lightradius, int numsurfaces, const int *surfacelist, const unsigned char *surfacesides, const vec3_t lightmins, const vec3_t lightmaxs);
// gathers info on which clusters and surfaces are lit by light, as well as calculating a bounding box
- void(*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(*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, qboolean noocclusion);
// compile a shadow volume for the model based on light source
void(*CompileShadowVolume)(struct entity_render_s *ent, vec3_t relativelightorigin, vec3_t relativelightdirection, float lightradius, int numsurfaces, const int *surfacelist);
// draw a shadow volume for the model based on light source
// draw the lighting on a model (through stencil)
void(*DrawLight)(struct entity_render_s *ent, int numsurfaces, const int *surfacelist, const unsigned char *trispvs);
// trace a box against this model
- void (*TraceBox)(struct model_s *model, const struct frameblend_s *frameblend, const struct skeleton_s *skeleton, struct trace_s *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask);
- void (*TraceBrush)(struct model_s *model, const struct frameblend_s *frameblend, const struct skeleton_s *skeleton, struct trace_s *trace, struct colbrushf_s *start, struct colbrushf_s *end, int hitsupercontentsmask);
+ void (*TraceBox)(struct model_s *model, const struct frameblend_s *frameblend, const struct skeleton_s *skeleton, struct trace_s *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask);
+ void (*TraceBrush)(struct model_s *model, const struct frameblend_s *frameblend, const struct skeleton_s *skeleton, struct trace_s *trace, struct colbrushf_s *start, struct colbrushf_s *end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask);
// trace a box against this model
- void (*TraceLine)(struct model_s *model, const struct frameblend_s *frameblend, const struct skeleton_s *skeleton, struct trace_s *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask);
+ void (*TraceLine)(struct model_s *model, const struct frameblend_s *frameblend, const struct skeleton_s *skeleton, struct trace_s *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask);
// trace a point against this model (like PointSuperContents)
- void (*TracePoint)(struct model_s *model, const struct frameblend_s *frameblend, const struct skeleton_s *skeleton, struct trace_s *trace, const vec3_t start, int hitsupercontentsmask);
+ void (*TracePoint)(struct model_s *model, const struct frameblend_s *frameblend, const struct skeleton_s *skeleton, struct trace_s *trace, const vec3_t start, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask);
// find the supercontents value at a point in this model
int (*PointSuperContents)(struct model_s *model, int frame, const vec3_t point);
// trace a line against geometry in this model and report correct texture (used by r_shadow_bouncegrid)
- void (*TraceLineAgainstSurfaces)(struct model_s *model, const struct frameblend_s *frameblend, const struct skeleton_s *skeleton, struct trace_s *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask);
+ void (*TraceLineAgainstSurfaces)(struct model_s *model, const struct frameblend_s *frameblend, const struct skeleton_s *skeleton, struct trace_s *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask);
// fields belonging to some types of model
model_sprite_t sprite;
model_brush_t brush;
model_brushq1_t brushq1;
- /* MSVC can't handle an empty struct, so this is commented out for now
model_brushq2_t brushq2;
- */
model_brushq3_t brushq3;
// flags this model for offseting sounds to the model center (used by brush models)
int soundfromcenter;
void Mod_LoadQ3Shaders(void);
q3shaderinfo_t *Mod_LookupQ3Shader(const char *name);
qboolean Mod_LoadTextureFromQ3Shader(texture_t *texture, const char *name, qboolean warnmissing, qboolean fallback, int defaulttexflags);
+texture_shaderpass_t *Mod_CreateShaderPass(skinframe_t *skinframe);
+texture_shaderpass_t *Mod_CreateShaderPassFromQ3ShaderLayer(q3shaderinfo_layer_t *layer, int layerindex, int texflags, const char *texturename);
+/// Sets up a material to render the provided skinframe. See also R_SkinFrame_LoadInternalBGRA.
+void Mod_LoadCustomMaterial(texture_t *texture, const char *name, int supercontents, int materialflags, skinframe_t *skinframe);
extern cvar_t r_mipskins;
extern cvar_t r_mipnormalmaps;
}
mod_alloclightmap_state_t;
-void Mod_AllocLightmap_Init(mod_alloclightmap_state_t *state, int width, int height);
+void Mod_AllocLightmap_Init(mod_alloclightmap_state_t *state, mempool_t *mempool, int width, int height);
void Mod_AllocLightmap_Free(mod_alloclightmap_state_t *state);
void Mod_AllocLightmap_Reset(mod_alloclightmap_state_t *state);
qboolean Mod_AllocLightmap_Block(mod_alloclightmap_state_t *state, int blockwidth, int blockheight, int *outx, int *outy);
// 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);
+int Mod_Q1BSP_NativeContentsFromSuperContents(int supercontents);
+int Mod_Q1BSP_SuperContentsFromNativeContents(int nativecontents);
+// used for loading wal files in Mod_LoadTextureFromQ3Shader
+int Mod_Q2BSP_SuperContentsFromNativeContents(int nativecontents);
+int Mod_Q2BSP_NativeContentsFromSuperContents(int supercontents);
// a lot of model formats use the Q1BSP code, so here are the prototypes...
struct entity_render_s;
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_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, qboolean noocclusion);
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);
+// dynamic mesh building (every frame) for debugging and other uses
+void Mod_Mesh_Create(dp_model_t *mod, const char *name);
+void Mod_Mesh_Destroy(dp_model_t *mod);
+void Mod_Mesh_Reset(dp_model_t *mod);
+texture_t *Mod_Mesh_GetTexture(dp_model_t *mod, const char *name);
+msurface_t *Mod_Mesh_AddSurface(dp_model_t *mod, texture_t *tex);
+int Mod_Mesh_IndexForVertex(dp_model_t *mod, msurface_t *surf, float x, float y, float z, float nx, float ny, float nz, float s, float t, float u, float v, float r, float g, float b, float a);
+void Mod_Mesh_AddTriangle(dp_model_t *mod, msurface_t *surf, int e0, int e1, int e2);
+void Mod_Mesh_Finalize(dp_model_t *mod);
+
// Collision optimization using Bounding Interval Hierarchy
-void Mod_CollisionBIH_TracePoint(dp_model_t *model, const struct frameblend_s *frameblend, const skeleton_t *skeleton, struct trace_s *trace, const vec3_t start, int hitsupercontentsmask);
-void Mod_CollisionBIH_TraceLine(dp_model_t *model, const struct frameblend_s *frameblend, const skeleton_t *skeleton, struct trace_s *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask);
-void Mod_CollisionBIH_TraceBox(dp_model_t *model, const struct frameblend_s *frameblend, const skeleton_t *skeleton, struct trace_s *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask);
-void Mod_CollisionBIH_TraceBrush(dp_model_t *model, const struct frameblend_s *frameblend, const skeleton_t *skeleton, struct trace_s *trace, struct colbrushf_s *start, struct colbrushf_s *end, int hitsupercontentsmask);
-void Mod_CollisionBIH_TracePoint_Mesh(dp_model_t *model, const struct frameblend_s *frameblend, const skeleton_t *skeleton, struct trace_s *trace, const vec3_t start, int hitsupercontentsmask);
+void Mod_CollisionBIH_TracePoint(dp_model_t *model, const struct frameblend_s *frameblend, const skeleton_t *skeleton, struct trace_s *trace, const vec3_t start, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask);
+void Mod_CollisionBIH_TraceLine(dp_model_t *model, const struct frameblend_s *frameblend, const skeleton_t *skeleton, struct trace_s *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask);
+void Mod_CollisionBIH_TraceBox(dp_model_t *model, const struct frameblend_s *frameblend, const skeleton_t *skeleton, struct trace_s *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask);
+void Mod_CollisionBIH_TraceBrush(dp_model_t *model, const struct frameblend_s *frameblend, const skeleton_t *skeleton, struct trace_s *trace, struct colbrushf_s *start, struct colbrushf_s *end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask);
+void Mod_CollisionBIH_TracePoint_Mesh(dp_model_t *model, const struct frameblend_s *frameblend, const skeleton_t *skeleton, struct trace_s *trace, const vec3_t start, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask);
+qboolean Mod_CollisionBIH_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end, const vec3_t acceptmins, const vec3_t acceptmaxs);
+int Mod_CollisionBIH_PointSuperContents(struct model_s *model, int frame, const vec3_t point);
int Mod_CollisionBIH_PointSuperContents_Mesh(struct model_s *model, int frame, const vec3_t point);
bih_t *Mod_MakeCollisionBIH(dp_model_t *model, qboolean userendersurfaces, bih_t *out);