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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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==============================================================================
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==============================================================================
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// in memory representation
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typedef struct mvertex_s
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typedef struct mplane_s
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// for texture axis selection and fast side tests
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#define SHADERSTAGE_SKY 0
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#define SHADERSTAGE_NORMAL 1
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#define SHADERSTAGE_COUNT 2
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//#define SURF_PLANEBACK 2
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// use alpha blend on this material
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#define MATERIALFLAG_ALPHA 2
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// use additive blend on this material
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#define MATERIALFLAG_ADD 4
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// turn off depth test on this material
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#define MATERIALFLAG_NODEPTHTEST 8
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// multiply alpha by r_wateralpha cvar
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#define MATERIALFLAG_WATERALPHA 16
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// draw with no lighting
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#define MATERIALFLAG_FULLBRIGHT 32
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// drawn as a normal surface (alternative to SKY)
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#define MATERIALFLAG_WALL 64
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// this surface shows the sky in its place, alternative to WALL
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// skipped if transparent
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#define MATERIALFLAG_SKY 128
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// swirling water effect (used with MATERIALFLAG_WALL)
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#define MATERIALFLAG_WATERSCROLL 256
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// skips drawing the surface
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#define MATERIALFLAG_NODRAW 512
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// probably used only on q1bsp water
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#define MATERIALFLAG_LIGHTBOTHSIDES 1024
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// use alpha test on this material
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#define MATERIALFLAG_ALPHATEST 2048
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// treat this material as a blended transparency (as opposed to an alpha test
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// transparency), this causes special fog behavior, and disables glDepthMask
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#define MATERIALFLAG_BLENDED 4096
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// render using a custom blendfunc
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#define MATERIALFLAG_CUSTOMBLEND 8192
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// do not cast shadows from this material
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#define MATERIALFLAG_NOSHADOW 16384
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// render using vertex alpha (q3bsp) as texture blend parameter between foreground (normal) skinframe and background skinframe
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#define MATERIALFLAG_VERTEXTEXTUREBLEND 32768
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// disables GL_CULL_FACE on this texture (making it double sided)
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#define MATERIALFLAG_NOCULLFACE 65536
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// render with a very short depth range (like 10% of normal), this causes entities to appear infront of most of the scene
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#define MATERIALFLAG_SHORTDEPTHRANGE 131072
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// render water, comprising refraction and reflection (note: this is always opaque, the shader does the alpha effect)
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#define MATERIALFLAG_WATERSHADER 262144
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// render refraction (note: this is just a way to distort the background, otherwise useless)
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#define MATERIALFLAG_REFRACTION 524288
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#define MATERIALFLAG_REFLECTION 1048576
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// use model lighting on this material (q1bsp lightmap sampling or q3bsp lightgrid, implies FULLBRIGHT is false)
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#define MATERIALFLAG_MODELLIGHT 4194304
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// add directional model lighting to this material (q3bsp lightgrid only)
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#define MATERIALFLAG_MODELLIGHT_DIRECTIONAL 8388608
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// combined mask of all attributes that require depth sorted rendering
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#define MATERIALFLAGMASK_DEPTHSORTED (MATERIALFLAG_BLENDED | MATERIALFLAG_NODEPTHTEST)
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typedef struct medge_s
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struct entity_render_s;
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typedef struct mnode_s
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//this part shared between node and leaf
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mplane_t *plane; // != NULL
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struct mnode_s *parent;
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struct mportal_s *portals;
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// for bounding box culling
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// supercontents from all brushes inside this node or leaf
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int combinedsupercontents;
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// this part unique to node
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struct mnode_s *children[2];
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unsigned short firstsurface;
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unsigned short numsurfaces;
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typedef struct mleaf_s
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//this part shared between node and leaf
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mplane_t *plane; // == NULL
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struct mnode_s *parent;
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struct mportal_s *portals;
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// for bounding box culling
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// supercontents from all brushes inside this node or leaf
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int combinedsupercontents;
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// this part unique to leaf
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int clusterindex; // -1 is not in pvs, >= 0 is pvs bit number
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int areaindex; // q3bsp
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int containscollisionsurfaces; // indicates whether the leafsurfaces contains q3 patches
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int *firstleafsurface;
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int numleafbrushes; // q3bsp
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int *firstleafbrush; // q3bsp
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unsigned char ambient_sound_level[NUM_AMBIENTS]; // q1bsp
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int contents; // q1bsp: // TODO: remove (only used temporarily during loading when making collision hull 0)
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int portalmarkid; // q1bsp // used by see-polygon-through-portals visibility checker
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typedef struct mclipnode_s
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int children[2]; // negative numbers are contents
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typedef struct hull_s
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mclipnode_t *clipnodes;
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typedef struct mportal_s
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struct mportal_s *next; // the next portal on this leaf
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mleaf_t *here; // the leaf this portal is on
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mleaf_t *past; // the leaf through this portal (infront)
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vec3_t mins, maxs; // culling
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typedef struct svbspmesh_s
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struct svbspmesh_s *next;
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int numverts, maxverts;
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int numtriangles, maxtriangles;
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#define Q2BSPVERSION 38
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// leaffaces, leafbrushes, planes, and verts are still bounded by
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// 16 bit short limits
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//=============================================================================
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#define Q2LUMP_ENTITIES 0
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#define Q2LUMP_PLANES 1
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#define Q2LUMP_VERTEXES 2
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#define Q2LUMP_VISIBILITY 3
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#define Q2LUMP_NODES 4
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#define Q2LUMP_TEXINFO 5
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#define Q2LUMP_FACES 6
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#define Q2LUMP_LIGHTING 7
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#define Q2LUMP_LEAFS 8
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#define Q2LUMP_LEAFFACES 9
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#define Q2LUMP_LEAFBRUSHES 10
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#define Q2LUMP_EDGES 11
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#define Q2LUMP_SURFEDGES 12
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#define Q2LUMP_MODELS 13
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#define Q2LUMP_BRUSHES 14
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#define Q2LUMP_BRUSHSIDES 15
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#define Q2LUMP_POP 16
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#define Q2LUMP_AREAS 17
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#define Q2LUMP_AREAPORTALS 18
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#define Q2HEADER_LUMPS 19
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typedef struct q2dheader_s
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lump_t lumps[Q2HEADER_LUMPS];
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typedef struct q2dmodel_s
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float mins[3], maxs[3];
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float origin[3]; // for sounds or lights
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int firstface, numfaces; // submodels just draw faces
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// without walking the bsp tree
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// planes (x&~1) and (x&~1)+1 are always opposites
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// contents flags are seperate bits
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// a given brush can contribute multiple content bits
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// multiple brushes can be in a single leaf
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// these definitions also need to be in q_shared.h!
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// lower bits are stronger, and will eat weaker brushes completely
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#define Q2CONTENTS_SOLID 1 // an eye is never valid in a solid
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#define Q2CONTENTS_WINDOW 2 // translucent, but not watery
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#define Q2CONTENTS_AUX 4
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#define Q2CONTENTS_LAVA 8
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#define Q2CONTENTS_SLIME 16
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#define Q2CONTENTS_WATER 32
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#define Q2CONTENTS_MIST 64
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#define Q2LAST_VISIBLE_CONTENTS 64
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// remaining contents are non-visible, and don't eat brushes
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#define Q2CONTENTS_AREAPORTAL 0x8000
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#define Q2CONTENTS_PLAYERCLIP 0x10000
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#define Q2CONTENTS_MONSTERCLIP 0x20000
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// currents can be added to any other contents, and may be mixed
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#define Q2CONTENTS_CURRENT_0 0x40000
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#define Q2CONTENTS_CURRENT_90 0x80000
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#define Q2CONTENTS_CURRENT_180 0x100000
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#define Q2CONTENTS_CURRENT_270 0x200000
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#define Q2CONTENTS_CURRENT_UP 0x400000
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#define Q2CONTENTS_CURRENT_DOWN 0x800000
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#define Q2CONTENTS_ORIGIN 0x1000000 // removed before bsping an entity
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#define Q2CONTENTS_MONSTER 0x2000000 // should never be on a brush, only in game
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#define Q2CONTENTS_DEADMONSTER 0x4000000
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#define Q2CONTENTS_DETAIL 0x8000000 // brushes to be added after vis leafs
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#define Q2CONTENTS_TRANSLUCENT 0x10000000 // auto set if any surface has trans
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#define Q2CONTENTS_LADDER 0x20000000
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#define Q2SURF_LIGHT 0x1 // value will hold the light strength
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#define Q2SURF_SLICK 0x2 // effects game physics
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#define Q2SURF_SKY 0x4 // don't draw, but add to skybox
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#define Q2SURF_WARP 0x8 // turbulent water warp
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#define Q2SURF_TRANS33 0x10
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#define Q2SURF_TRANS66 0x20
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#define Q2SURF_FLOWING 0x40 // scroll towards angle
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#define Q2SURF_NODRAW 0x80 // don't bother referencing the texture
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typedef struct q2dnode_s
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int children[2]; // negative numbers are -(leafs+1), not nodes
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short mins[3]; // for frustom culling
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unsigned short firstface;
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unsigned short numfaces; // counting both sides
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typedef struct q2texinfo_s
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float vecs[2][4]; // [s/t][xyz offset]
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int flags; // miptex flags + overrides
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int value; // light emission, etc
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char texture[32]; // texture name (textures/*.wal)
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int nexttexinfo; // for animations, -1 = end of chain
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typedef struct q2dleaf_s
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int contents; // OR of all brushes (not needed?)
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short mins[3]; // for frustum culling
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unsigned short firstleafface;
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unsigned short numleaffaces;
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unsigned short firstleafbrush;
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unsigned short numleafbrushes;
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typedef struct q2dbrushside_s
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unsigned short planenum; // facing out of the leaf
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typedef struct q2dbrush_s
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// the visibility lump consists of a header with a count, then
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// byte offsets for the PVS and PHS of each cluster, then the raw
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// compressed bit vectors
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typedef struct q2dvis_s
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int bitofs[8][2]; // bitofs[numclusters][2]
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// each area has a list of portals that lead into other areas
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// when portals are closed, other areas may not be visible or
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// hearable even if the vis info says that it should be
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typedef struct q2dareaportal_s
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typedef struct q2darea_s
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#define Q3BSPVERSION 46
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#define Q3LUMP_ENTITIES 0 // entities to spawn (used by server and client)
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#define Q3LUMP_TEXTURES 1 // textures used (used by faces)
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#define Q3LUMP_PLANES 2 // planes used (used by bsp nodes)
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#define Q3LUMP_NODES 3 // bsp nodes (used by bsp nodes, bsp leafs, rendering, collisions)
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#define Q3LUMP_LEAFS 4 // bsp leafs (used by bsp nodes)
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#define Q3LUMP_LEAFFACES 5 // array of ints indexing faces (used by leafs)
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#define Q3LUMP_LEAFBRUSHES 6 // array of ints indexing brushes (used by leafs)
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#define Q3LUMP_MODELS 7 // models (used by rendering, collisions)
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#define Q3LUMP_BRUSHES 8 // brushes (used by effects, collisions)
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#define Q3LUMP_BRUSHSIDES 9 // brush faces (used by brushes)
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#define Q3LUMP_VERTICES 10 // mesh vertices (used by faces)
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#define Q3LUMP_TRIANGLES 11 // mesh triangles (used by faces)
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#define Q3LUMP_EFFECTS 12 // fog (used by faces)
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#define Q3LUMP_FACES 13 // surfaces (used by leafs)
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#define Q3LUMP_LIGHTMAPS 14 // lightmap textures (used by faces)
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#define Q3LUMP_LIGHTGRID 15 // lighting as a voxel grid (used by rendering)
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#define Q3LUMP_PVS 16 // potentially visible set; bit[clusters][clusters] (used by rendering)
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#define Q3HEADER_LUMPS 17
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typedef struct q3dheader_s
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lump_t lumps[Q3HEADER_LUMPS];
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typedef struct q3dtexture_s
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char name[Q3PATHLENGTH];
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// note: planes are paired, the pair of planes with i and i ^ 1 are opposites.
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typedef struct q3dplane_s
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typedef struct q3dnode_s
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int childrenindex[2];
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typedef struct q3dleaf_s
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int clusterindex; // pvs index
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int areaindex; // area index
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typedef struct q3dmodel_s
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typedef struct q3dbrush_s
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typedef struct q3dbrushside_s
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typedef struct q3dvertex_s
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unsigned char color4ub[4];
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typedef struct q3dmeshvertex_s
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int offset; // first vertex index of mesh
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typedef struct q3deffect_s
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char shadername[Q3PATHLENGTH];
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int unknown; // I read this is always 5 except in q3dm8 which has one effect with -1
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#define Q3FACETYPE_FLAT 1 // common
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#define Q3FACETYPE_PATCH 2 // common
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#define Q3FACETYPE_MESH 3 // common
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#define Q3FACETYPE_FLARE 4 // rare (is this ever used?)
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typedef struct q3dface_s
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int effectindex; // -1 if none
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int type; // Q3FACETYPE
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int lightmapindex; // -1 if none
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int lightmap_base[2];
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int lightmap_size[2];
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// corrupt or don't care
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// mesh is a collection of triangles on a plane, renderable as a mesh (NOT a polygon)
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float lightmap_origin[3];
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float lightmap_vectors[2][3];
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// patch renders as a bezier mesh, with adjustable tesselation
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// level (optionally based on LOD using the bbox and polygon
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// count to choose a tesselation level)
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// note: multiple patches may have the same bbox to cause them to
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// be LOD adjusted together as a group
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float mins[3]; // LOD bbox
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float maxs[3]; // LOD bbox
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int patchsize[2]; // dimensions of vertex grid
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// mesh renders as simply a triangle mesh
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// flare renders as a simple sprite at origin, no geometry
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// exists, nor does it have a radius, a cvar controls the radius
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// and another cvar controls distance fade
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// (they were not used in Q3 I'm told)
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typedef struct q3dlightmap_s
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unsigned char rgb[128*128*3];
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typedef struct q3dlightgrid_s
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unsigned char ambientrgb[3];
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unsigned char diffusergb[3];
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unsigned char diffusepitch;
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unsigned char diffuseyaw;
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typedef struct q3dpvs_s
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// unsigned char chains[];
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// containing bits in 0-7 order (not 7-0 order),
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// pvschains[mycluster * chainlength + (thatcluster >> 3)] & (1 << (thatcluster & 7))
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// surfaceflags from bsp
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#define Q3SURFACEFLAG_NODAMAGE 1
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#define Q3SURFACEFLAG_SLICK 2
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#define Q3SURFACEFLAG_SKY 4
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#define Q3SURFACEFLAG_LADDER 8
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#define Q3SURFACEFLAG_NOIMPACT 16
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#define Q3SURFACEFLAG_NOMARKS 32
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#define Q3SURFACEFLAG_FLESH 64
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#define Q3SURFACEFLAG_NODRAW 128
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#define Q3SURFACEFLAG_HINT 256
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#define Q3SURFACEFLAG_SKIP 512
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#define Q3SURFACEFLAG_NOLIGHTMAP 1024
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#define Q3SURFACEFLAG_POINTLIGHT 2048
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#define Q3SURFACEFLAG_METALSTEPS 4096
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#define Q3SURFACEFLAG_NOSTEPS 8192
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#define Q3SURFACEFLAG_NONSOLID 16384
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#define Q3SURFACEFLAG_LIGHTFILTER 32768
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#define Q3SURFACEFLAG_ALPHASHADOW 65536
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#define Q3SURFACEFLAG_NODLIGHT 131072
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#define Q3SURFACEFLAG_DUST 262144
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// surfaceparms from shaders
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#define Q3SURFACEPARM_ALPHASHADOW 1
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#define Q3SURFACEPARM_AREAPORTAL 2
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#define Q3SURFACEPARM_CLUSTERPORTAL 4
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#define Q3SURFACEPARM_DETAIL 8
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#define Q3SURFACEPARM_DONOTENTER 16
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#define Q3SURFACEPARM_FOG 32
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#define Q3SURFACEPARM_LAVA 64
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#define Q3SURFACEPARM_LIGHTFILTER 128
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#define Q3SURFACEPARM_METALSTEPS 256
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#define Q3SURFACEPARM_NODAMAGE 512
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#define Q3SURFACEPARM_NODLIGHT 1024
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#define Q3SURFACEPARM_NODRAW 2048
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#define Q3SURFACEPARM_NODROP 4096
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#define Q3SURFACEPARM_NOIMPACT 8192
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#define Q3SURFACEPARM_NOLIGHTMAP 16384
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#define Q3SURFACEPARM_NOMARKS 32768
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#define Q3SURFACEPARM_NOMIPMAPS 65536
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#define Q3SURFACEPARM_NONSOLID 131072
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#define Q3SURFACEPARM_ORIGIN 262144
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#define Q3SURFACEPARM_PLAYERCLIP 524288
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#define Q3SURFACEPARM_SKY 1048576
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#define Q3SURFACEPARM_SLICK 2197152
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#define Q3SURFACEPARM_SLIME 4194304
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#define Q3SURFACEPARM_STRUCTURAL 8388608
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#define Q3SURFACEPARM_TRANS 16777216
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#define Q3SURFACEPARM_WATER 33554432
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#define Q3SURFACEPARM_POINTLIGHT 67108864
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#define Q3SURFACEPARM_HINT 134217728
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#define Q3SURFACEPARM_DUST 268435456
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#define Q3SURFACEPARM_BOTCLIP 536870912
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#define Q3SURFACEPARM_LIGHTGRID 1073741824
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#define Q3SURFACEPARM_ANTIPORTAL 2147483648u
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typedef struct q3mbrush_s
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struct colbrushf_s *colbrushf;
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struct q3mbrushside_s *firstbrushside;
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struct texture_s *texture;
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typedef struct q3mbrushside_s
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struct mplane_s *plane;
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struct texture_s *texture;
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#define CHECKPVSBIT(pvs,b) ((b) >= 0 ? ((pvs)[(b) >> 3] & (1 << ((b) & 7))) : false)
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#define SETPVSBIT(pvs,b) ((b) >= 0 ? ((pvs)[(b) >> 3] |= (1 << ((b) & 7))) : false)
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#define CLEARPVSBIT(pvs,b) ((b) >= 0 ? ((pvs)[(b) >> 3] &= ~(1 << ((b) & 7))) : false)
added
removed
darkplaces/model_brush.h
