id-software/DOOM-3-BFG
1
0
Fork 0
mirror of https://github.com/id-Software/DOOM-3-BFG.git synced 2026-03-20 17:11:16 +01:00
Code Issues Packages Projects Releases Wiki Activity

Initial commit

Browse Source
This commit is contained in:
Brian Harris
2012-11-26 12:58:24 -06:00
parent a5214f79ef
commit 5016f605b8
1115 changed files with 587266 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

132
neo/renderer/ModelDecal.h Normal file
View File

@@ -0,0 +1,132 @@
/*
===========================================================================
Doom 3 BFG Edition GPL Source Code
Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company.
This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").
Doom 3 BFG Edition Source Code is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Doom 3 BFG Edition Source Code is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Doom 3 BFG Edition Source Code. If not, see <http://www.gnu.org/licenses/>.
In addition, the Doom 3 BFG Edition Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 BFG Edition Source Code. If not, please request a copy in writing from id Software at the address below.
If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
===========================================================================
*/
#ifndef __MODELDECAL_H__
#define __MODELDECAL_H__
/*
===============================================================================
Decals are lightweight primitives for bullet / blood marks on static
geometry. Decals with common materials will be merged together, but
additional decals will be allocated as needed. The material should not
be one that receives lighting, because no interactions are generated
for these lightweight surfaces.
FIXME: Decals on models in portalled off areas do not get freed
until the area becomes visible again.
===============================================================================
*/
static const int NUM_DECAL_BOUNDING_PLANES = 6;
#ifdef ID_PC
static const int MAX_DEFERRED_DECALS = 8;
static const int DEFFERED_DECAL_TIMEOUT = 1000; // don't create a decal if it wasn't visible within the first second
static const int MAX_DECALS = 64;
#else
static const int MAX_DEFERRED_DECALS = 4;
static const int DEFFERED_DECAL_TIMEOUT = 200; // don't create a decal if it wasn't visible within the first 200 milliseconds
static const int MAX_DECALS = 32;
#endif
static const int MAX_DECAL_VERTS = 3 + NUM_DECAL_BOUNDING_PLANES + 3 + 6; // 3 triangle verts clipped NUM_DECAL_BOUNDING_PLANES + 3 times (plus 6 for safety)
static const int MAX_DECAL_INDEXES = ( MAX_DECAL_VERTS - 2 ) * 3;
compile_time_assert( CONST_ISPOWEROFTWO( MAX_DECALS ) );
// the max indices must be a multiple of 2 for copying indices to write-combined memory
compile_time_assert( ( ( MAX_DECAL_INDEXES * sizeof( triIndex_t ) ) & 15 ) == 0 );
struct decalProjectionParms_t {
idPlane boundingPlanes[NUM_DECAL_BOUNDING_PLANES];
idPlane fadePlanes[2];
idPlane textureAxis[2];
idVec3 projectionOrigin;
idBounds projectionBounds;
const idMaterial * material;
float fadeDepth;
int startTime;
bool parallel;
bool force;
};
ALIGNTYPE16 struct decal_t {
ALIGNTYPE16 idDrawVert verts[MAX_DECAL_VERTS];
ALIGNTYPE16 triIndex_t indexes[MAX_DECAL_INDEXES];
float vertDepthFade[MAX_DECAL_VERTS];
int numVerts;
int numIndexes;
int startTime;
const idMaterial * material;
};
class idRenderModelDecal {
public:
idRenderModelDecal();
~idRenderModelDecal();
// Creates decal projection parameters.
static bool CreateProjectionParms( decalProjectionParms_t &parms, const idFixedWinding &winding, const idVec3 &projectionOrigin, const bool parallel, const float fadeDepth, const idMaterial *material, const int startTime );
// Transform the projection parameters from global space to local.
static void GlobalProjectionParmsToLocal( decalProjectionParms_t &localParms, const decalProjectionParms_t &globalParms, const idVec3 &origin, const idMat3 &axis );
// clear the model for reuse
void ReUse();
// Save the parameters for the renderer front-end to actually create the decal.
void AddDeferredDecal( const decalProjectionParms_t & localParms );
// Creates a decal on the given model.
void CreateDeferredDecals( const idRenderModel *model );
// Remove decals that are completely faded away.
void RemoveFadedDecals( int time );
unsigned int GetNumDecalDrawSurfs();
struct drawSurf_t * CreateDecalDrawSurf( const struct viewEntity_t *space, unsigned int index );
void ReadFromDemoFile( class idDemoFile *f );
void WriteToDemoFile( class idDemoFile *f ) const;
private:
decal_t decals[MAX_DECALS];
unsigned int firstDecal;
unsigned int nextDecal;
decalProjectionParms_t deferredDecals[MAX_DEFERRED_DECALS];
unsigned int firstDeferredDecal;
unsigned int nextDeferredDecal;
const idMaterial * decalMaterials[MAX_DECALS];
unsigned int numDecalMaterials;
void CreateDecalFromWinding( const idWinding &w, const idMaterial *decalMaterial, const idPlane fadePlanes[2], float fadeDepth, int startTime );
void CreateDecal( const idRenderModel *model, const decalProjectionParms_t &localParms );
};
#endif /* !__MODELDECAL_H__ */