mirror of
https://github.com/id-Software/DOOM-3-BFG.git
synced 2026-03-20 17:11:16 +01:00
Initial commit
This commit is contained in:
Brian Harris
93
neo/renderer/jobs/staticshadowvolume/StaticShadowVolume.cpp
Normal file
93
neo/renderer/jobs/staticshadowvolume/StaticShadowVolume.cpp
Normal file
@@ -0,0 +1,93 @@
|
||||
/*
|
||||
===========================================================================
|
||||
|
||||
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.
|
||||
|
||||
===========================================================================
|
||||
*/
|
||||
|
||||
#include "StaticShadowVolume_local.h"
|
||||
|
||||
/*
|
||||
===================
|
||||
StaticShadowVolumeJob
|
||||
===================
|
||||
*/
|
||||
void StaticShadowVolumeJob( const staticShadowVolumeParms_t * parms ) {
|
||||
if ( parms->tempCullBits == NULL ) {
|
||||
*const_cast< byte ** >( &parms->tempCullBits ) = (byte *)_alloca16( TEMP_CULLBITS( parms->numVerts ) );
|
||||
}
|
||||
|
||||
// Calculate the shadow depth bounds.
|
||||
float shadowZMin = parms->lightZMin;
|
||||
float shadowZMax = parms->lightZMax;
|
||||
if ( parms->useShadowDepthBounds ) {
|
||||
idRenderMatrix::DepthBoundsForShadowBounds( shadowZMin, shadowZMax, parms->triangleMVP, parms->triangleBounds, parms->localLightOrigin, true );
|
||||
shadowZMin = Max( shadowZMin, parms->lightZMin );
|
||||
shadowZMax = Min( shadowZMax, parms->lightZMax );
|
||||
}
|
||||
|
||||
bool renderZFail = false;
|
||||
int numShadowIndices = 0;
|
||||
|
||||
// The shadow volume may be depth culled if either the shadow volume was culled to the view frustum or if the
|
||||
// depth range of the visible part of the shadow volume is outside the depth range of the light volume.
|
||||
if ( shadowZMin < shadowZMax ) {
|
||||
// Check if we need to render the shadow volume with Z-fail.
|
||||
// If the view is potentially inside the shadow volume bounds we may need to render with Z-fail.
|
||||
if ( R_ViewPotentiallyInsideInfiniteShadowVolume( parms->triangleBounds, parms->localLightOrigin, parms->localViewOrigin, parms->zNear * INSIDE_SHADOW_VOLUME_EXTRA_STRETCH ) ) {
|
||||
// Optionally perform a more precise test to see whether or not the view is inside the shadow volume.
|
||||
if ( parms->useShadowPreciseInsideTest && parms->verts != NULL && parms->indexes != NULL ) {
|
||||
renderZFail = R_ViewInsideShadowVolume( parms->tempCullBits, parms->verts, parms->numVerts, parms->indexes, parms->numIndexes,
|
||||
parms->localLightOrigin, parms->localViewOrigin, parms->zNear * INSIDE_SHADOW_VOLUME_EXTRA_STRETCH );
|
||||
} else {
|
||||
renderZFail = true;
|
||||
}
|
||||
}
|
||||
|
||||
// Check if we can avoid rendering the shadow volume caps.
|
||||
numShadowIndices = ( parms->forceShadowCaps || renderZFail ) ? parms->numShadowIndicesWithCaps : parms->numShadowIndicesNoCaps;
|
||||
}
|
||||
|
||||
// write out the number of shadow indices
|
||||
if ( parms->numShadowIndices != NULL ) {
|
||||
*parms->numShadowIndices = numShadowIndices;
|
||||
}
|
||||
// write out whether or not the shadow volume needs to be rendered with Z-Fail
|
||||
if ( parms->renderZFail != NULL ) {
|
||||
*parms->renderZFail = renderZFail;
|
||||
}
|
||||
// write out the shadow depth bounds
|
||||
if ( parms->shadowZMin != NULL ) {
|
||||
*parms->shadowZMin = shadowZMin;
|
||||
}
|
||||
if ( parms->shadowZMax != NULL ) {
|
||||
*parms->shadowZMax = shadowZMax;
|
||||
}
|
||||
// write out the shadow volume state
|
||||
if ( parms->shadowVolumeState != NULL ) {
|
||||
*parms->shadowVolumeState = SHADOWVOLUME_DONE;
|
||||
}
|
||||
}
|
||||
|
||||
REGISTER_PARALLEL_JOB( StaticShadowVolumeJob, "StaticShadowVolumeJob" );
|
||||
87
neo/renderer/jobs/staticshadowvolume/StaticShadowVolume.h
Normal file
87
neo/renderer/jobs/staticshadowvolume/StaticShadowVolume.h
Normal file
@@ -0,0 +1,87 @@
|
||||
/*
|
||||
===========================================================================
|
||||
|
||||
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 __STATICSHADOWVOLUME_H__
|
||||
#define __STATICSHADOWVOLUME_H__
|
||||
|
||||
/*
|
||||
================================================================================================
|
||||
|
||||
Static Shadow Volume Setup
|
||||
|
||||
A static shadow is cast from a static model touching a static light.
|
||||
A static shadow volume extends to infinity which allows the end caps to be omitted
|
||||
when the view is outside and far enough away from the shadow volume.
|
||||
|
||||
A static shadow volume is created at map load time and this job determines whether or
|
||||
not the end caps need to be rendered, whether or not the shadow volume needs to be
|
||||
rendered with Z-Fail, and optionally calculates the shadow volume depth bounds.
|
||||
|
||||
================================================================================================
|
||||
*/
|
||||
|
||||
/*
|
||||
================================================
|
||||
staticShadowVolumeParms_t
|
||||
================================================
|
||||
*/
|
||||
struct staticShadowVolumeParms_t {
|
||||
// input
|
||||
const idShadowVert * verts; // streamed in from main memory
|
||||
int numVerts;
|
||||
const triIndex_t * indexes; // streamed in from main memory
|
||||
int numIndexes;
|
||||
int numShadowIndicesWithCaps;
|
||||
int numShadowIndicesNoCaps;
|
||||
idBounds triangleBounds;
|
||||
idRenderMatrix triangleMVP;
|
||||
idVec3 localLightOrigin;
|
||||
idVec3 localViewOrigin;
|
||||
float zNear;
|
||||
float lightZMin;
|
||||
float lightZMax;
|
||||
bool forceShadowCaps;
|
||||
bool useShadowPreciseInsideTest;
|
||||
bool useShadowDepthBounds;
|
||||
// temp
|
||||
byte * tempCullBits; // temp buffer in SPU local memory
|
||||
// output
|
||||
int * numShadowIndices; // streamed out to main memory
|
||||
int * renderZFail; // streamed out to main memory
|
||||
float * shadowZMin; // streamed out to main memory
|
||||
float * shadowZMax; // streamed out to main memory
|
||||
volatile shadowVolumeState_t * shadowVolumeState; // streamed out to main memory
|
||||
// next in chain on view entity
|
||||
staticShadowVolumeParms_t * next;
|
||||
int pad[3];
|
||||
};
|
||||
|
||||
|
||||
void StaticShadowVolumeJob( const staticShadowVolumeParms_t * parms );
|
||||
void StaticShadowVolume_SetupSPURSHeader( CellSpursJob128 * job, const staticShadowVolumeParms_t * parms );
|
||||
|
||||
#endif // !__STATICSHADOWVOLUME_H__
|
||||
@@ -0,0 +1,47 @@
|
||||
/*
|
||||
===========================================================================
|
||||
|
||||
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 __STATICSHADOWVOLUME_LOCAL_H__
|
||||
#define __STATICSHADOWVOLUME_LOCAL_H__
|
||||
|
||||
#include "../../../idlib/ParallelJobList_JobHeaders.h"
|
||||
#include "../../../idlib/SoftwareCache.h"
|
||||
|
||||
#include "../../../idlib/math/Vector.h"
|
||||
#include "../../../idlib/math/Matrix.h"
|
||||
#include "../../../idlib/math/Quat.h"
|
||||
#include "../../../idlib/math/Rotation.h"
|
||||
#include "../../../idlib/math/Plane.h"
|
||||
#include "../../../idlib/bv/Sphere.h"
|
||||
#include "../../../idlib/bv/Bounds.h"
|
||||
#include "../../../idlib/geometry/JointTransform.h"
|
||||
#include "../../../idlib/geometry/DrawVert.h"
|
||||
#include "../../../idlib/geometry/RenderMatrix.h"
|
||||
#include "../ShadowShared.h"
|
||||
#include "StaticShadowVolume.h"
|
||||
|
||||
#endif // !__STATICSHADOWVOLUME_LOCAL_H__
|
||||
Reference in New Issue
Block a user