// begin/end model rendering to screen
void BeginModelRenderingView( CAnyProjection3D &prProjection, CDrawPort *pdp)
{
ASSERT( _iRenderingType==0 && _pdp==NULL);
// set 3D projection
_iRenderingType = 1;
_pdp = pdp;
prProjection->ObjectPlacementL() = CPlacement3D(FLOAT3D(0,0,0), ANGLE3D(0,0,0));
prProjection->Prepare();
// in case of mirror projection, move mirror clip plane a bit father from the mirrored models,
// so we have less clipping (for instance, player feet)
if( prProjection->pr_bMirror) prProjection->pr_plMirrorView.pl_distance -= 0.06f; // -0.06 is because entire projection is offseted by +0.05
_aprProjection = prProjection;
_pdp->SetProjection( _aprProjection);
// make FPU precision low
_fpuOldPrecision = GetFPUPrecision();
SetFPUPrecision(FPT_24BIT);
// prepare common arrays for simple shadows rendering
_avtxCommon.PopAll();
_atexCommon.PopAll();
_acolCommon.PopAll();
// eventually setup truform
extern INDEX gap_bForceTruform;
extern INDEX ogl_bTruformLinearNormals;
if( ogl_bTruformLinearNormals) ogl_bTruformLinearNormals = 1;
if( gap_bForceTruform) {
gap_bForceTruform = 1;
gfxSetTruform( _pGfx->gl_iTessellationLevel, ogl_bTruformLinearNormals);
}
}
// assure that floating point precision is 53 bits
void AssureFPT_53(void)
{
if (GetFPUPrecision()!=FPT_53BIT) {
ASSERTALWAYS( "Floating precision must be set to 53 bits during CSG!");
SetFPUPrecision(FPT_53BIT);
}
}
/*
* Destructor with automatic restoring of FPU precision.
*/
CSetFPUPrecision::~CSetFPUPrecision(void)
{
// check consistency
ASSERT(GetFPUPrecision()==sfp_fptNewPrecision);
// restore old precision if needed
if (sfp_fptNewPrecision!=sfp_fptOldPrecision) {
SetFPUPrecision(sfp_fptOldPrecision);
}
}
/*
* Constructor with automatic setting of FPU precision.
*/
CSetFPUPrecision::CSetFPUPrecision(enum FPUPrecisionType fptNew)
{
// remember old precision
sfp_fptOldPrecision = GetFPUPrecision();
// set new precision if needed
sfp_fptNewPrecision = fptNew;
if (sfp_fptNewPrecision!=sfp_fptOldPrecision) {
SetFPUPrecision(fptNew);
}
}
void EndModelRenderingView( BOOL bRestoreOrtho/*=TRUE*/)
{
ASSERT( _iRenderingType==1 && _pdp!=NULL);
// assure that FPU precision was low all the model rendering time, then revert to old FPU precision
ASSERT( GetFPUPrecision()==FPT_24BIT);
SetFPUPrecision(_fpuOldPrecision);
// restore front face direction
gfxFrontFace(GFX_CCW);
// render all batched shadows
extern void RenderBatchedSimpleShadows_View(void);
RenderBatchedSimpleShadows_View();
// back to 2D projection?
if( bRestoreOrtho) _pdp->SetOrtho();
_iRenderingType = 0;
_pdp = NULL;
// eventually disable re-enable clipping
gfxEnableClipping();
if( _aprProjection->pr_bMirror || _aprProjection->pr_bWarp) gfxEnableClipPlane();
}
/*
* Copy selected sectors of a source brush to a 3D object.
*/
void CWorld::CopySourceBrushSectorsToObject(
CEntity &enBrush,
CBrushSectorSelectionForCSG &bscselSectors,
const CPlacement3D &plSourcePlacement,
CObject3D &obObject,
const CPlacement3D &plTargetPlacement,
DOUBLEaabbox3D &boxSourceAbsolute
)
{
ASSERT(GetFPUPrecision()==FPT_53BIT);
// get the brush mip from the entity
CBrushMip &bmBrushMip = *GetBrushMip(enBrush);
// calculate placement of the brush in absolute space (taking relative
// world placement and entity placement in account)
CPlacement3D plBrush = enBrush.en_plPlacement;
plBrush.RelativeToAbsolute(plSourcePlacement);
// copy selected sectors of brush to object3d object
bmBrushMip.ToObject3D(obObject, bscselSectors);
// make a copy of the object and find its box in absolute space
CObject3D obAbsolute;
obAbsolute = obObject;
CSimpleProjection3D_DOUBLE prToAbsolute;
prToAbsolute.ObjectPlacementL() = plBrush;
prToAbsolute.ViewerPlacementL() = CPlacement3D(FLOAT3D(0,0,0), ANGLE3D(0,0,0));
prToAbsolute.Prepare();
obAbsolute.Project(prToAbsolute);
obAbsolute.GetBoundingBox(boxSourceAbsolute);
// project the brush into target space
CSimpleProjection3D_DOUBLE prSimple;
prSimple.ObjectPlacementL() = plBrush;
prSimple.ViewerPlacementL() = plTargetPlacement;
prSimple.Prepare();
obObject.Project(prSimple);
}
/*
* Move sectors of a target brush that are affected, to a 3D object.
*/
void CWorld::MoveTargetBrushPartToObject(
CEntity &enBrush,
DOUBLEaabbox3D &boxAffected,
CObject3D &obObject
)
{
ASSERT(GetFPUPrecision()==FPT_53BIT);
// get the brush mip from the entity
CBrushMip &bmBrushMip = *GetBrushMip(enBrush);
// copy those sectors of brush touching given bbox to 3D object
CBrushSectorSelectionForCSG bscselSectors;
bmBrushMip.SelectSectorsInRange(bscselSectors, DOUBLEtoFLOAT(boxAffected));
bmBrushMip.ToObject3D(obObject, bscselSectors);
bmBrushMip.DeleteSelectedSectors(bscselSectors);
// if no sectors are moved this way
if (obObject.ob_aoscSectors.Count()==0) {
// move the open sector to object
CBrushSectorSelectionForCSG bscselOpen;
bmBrushMip.SelectOpenSector(bscselOpen);
bmBrushMip.ToObject3D(obObject, bscselOpen);
bmBrushMip.DeleteSelectedSectors(bscselOpen);
}
}