// setup CRenderModel class for rendering one model and eventually it's shadow(s)
void CModelObject::SetupModelRendering( CRenderModel &rm)
{
_sfStats.IncrementCounter( CStatForm::SCI_MODELS);
_pfModelProfile.StartTimer( CModelProfile::PTI_INITMODELRENDERING);
_pfModelProfile.IncrementTimerAveragingCounter( CModelProfile::PTI_INITMODELRENDERING);
// get model's data and lerp info
rm.rm_pmdModelData = (CModelData*)GetData();
GetFrame( rm.rm_iFrame0, rm.rm_iFrame1, rm.rm_fRatio);
const INDEX ctVertices = rm.rm_pmdModelData->md_VerticesCt;
if( rm.rm_pmdModelData->md_Flags & MF_COMPRESSED_16BIT) {
// set pFrame to point to last and next frames' vertices
rm.rm_pFrame16_0 = &rm.rm_pmdModelData->md_FrameVertices16[rm.rm_iFrame0 *ctVertices];
rm.rm_pFrame16_1 = &rm.rm_pmdModelData->md_FrameVertices16[rm.rm_iFrame1 *ctVertices];
} else {
// set pFrame to point to last and next frames' vertices
rm.rm_pFrame8_0 = &rm.rm_pmdModelData->md_FrameVertices8[rm.rm_iFrame0 *ctVertices];
rm.rm_pFrame8_1 = &rm.rm_pmdModelData->md_FrameVertices8[rm.rm_iFrame1 *ctVertices];
}
// obtain current rendering preferences
rm.rm_rtRenderType = _mrpModelRenderPrefs.GetRenderType();
// remember blending color
rm.rm_colBlend = MulColors( rm.rm_colBlend, mo_colBlendColor);
// get decompression/stretch factors
FLOAT3D &vDataStretch = rm.rm_pmdModelData->md_Stretch;
rm.rm_vStretch(1) = vDataStretch(1) * mo_Stretch(1);
rm.rm_vStretch(2) = vDataStretch(2) * mo_Stretch(2);
rm.rm_vStretch(3) = vDataStretch(3) * mo_Stretch(3);
rm.rm_vOffset = rm.rm_pmdModelData->md_vCompressedCenter;
// check if object is inverted (in mirror)
BOOL bXInverted = rm.rm_vStretch(1) < 0;
BOOL bYInverted = rm.rm_vStretch(2) < 0;
BOOL bZInverted = rm.rm_vStretch(3) < 0;
rm.rm_ulFlags &= ~RMF_INVERTED;
if( bXInverted != bYInverted != bZInverted != _aprProjection->pr_bInverted) rm.rm_ulFlags |= RMF_INVERTED;
// prepare projections
_pfModelProfile.StartTimer( CModelProfile::PTI_INITPROJECTION);
_pfModelProfile.IncrementTimerAveragingCounter( CModelProfile::PTI_INITPROJECTION);
PrepareView(rm);
_pfModelProfile.StopTimer( CModelProfile::PTI_INITPROJECTION);
// get mip factor from projection (if needed)
if( (INDEX&)rm.rm_fDistanceFactor==12345678) {
FLOAT3D vObjectAbs;
_aprProjection->PreClip( rm.rm_vObjectPosition, vObjectAbs);
rm.rm_fDistanceFactor = _aprProjection->MipFactor( Min(vObjectAbs(3), 0.0f));
}
// adjust mip factor in case of dynamic stretch factor
if( mo_Stretch != FLOAT3D(1,1,1)) {
rm.rm_fMipFactor = rm.rm_fDistanceFactor - Log2( Max(mo_Stretch(1),Max(mo_Stretch(2),mo_Stretch(3))));
} else {
rm.rm_fMipFactor = rm.rm_fDistanceFactor;
}
// adjust mip factor by custom settings
rm.rm_fMipFactor = rm.rm_fMipFactor*mdl_fLODMul +mdl_fLODAdd;
// get current mip model using mip factor
rm.rm_iMipLevel = GetMipModel( rm.rm_fMipFactor);
mo_iLastRenderMipLevel = rm.rm_iMipLevel;
// get current vertices mask
rm.rm_pmmiMip = &rm.rm_pmdModelData->md_MipInfos[rm.rm_iMipLevel];
// don't allow any shading, if shading is turned off
if( rm.rm_rtRenderType & RT_SHADING_NONE) {
rm.rm_colAmbient = C_WHITE|CT_OPAQUE;
rm.rm_colLight = C_BLACK;
}
// calculate light vector as seen from model, so that vertex normals
// do not need to be transformed for lighting calculations
FLOAT fLightDirection=(rm.rm_vLightDirection).Length();
if( fLightDirection>0.001f) {
rm.rm_vLightDirection /= fLightDirection;
} else {
rm.rm_vLightDirection = FLOAT3D(0,0,0);
}
rm.rm_vLightObj = rm.rm_vLightDirection * !rm.rm_mObjectRotation;
// precalculate rendering data if needed
extern void PrepareModelForRendering( CModelData &md);
PrepareModelForRendering( *rm.rm_pmdModelData);
// done with setup if viewing from this model
if( rm.rm_ulFlags&RMF_SPECTATOR) {
_pfModelProfile.StopTimer( CModelProfile::PTI_INITMODELRENDERING);
return;
}
_pfModelProfile.StartTimer( CModelProfile::PTI_INITATTACHMENTS);
// for each attachment on this model object
FOREACHINLIST( CAttachmentModelObject, amo_lnInMain, mo_lhAttachments, itamo) {
_pfModelProfile.IncrementTimerAveragingCounter( CModelProfile::PTI_INITATTACHMENTS);
CAttachmentModelObject *pamo = itamo;
// create new render model structure
pamo->amo_prm = &_armRenderModels.Push();
const BOOL bVisible = CreateAttachment( rm, *pamo);
if( !bVisible) { // skip if not visible
pamo->amo_prm = NULL;
_armRenderModels.Pop();
continue;
} // prepare if visible
_pfModelProfile.StopTimer( CModelProfile::PTI_INITMODELRENDERING);
_pfModelProfile.StopTimer( CModelProfile::PTI_INITATTACHMENTS);
pamo->amo_moModelObject.SetupModelRendering( *pamo->amo_prm);
_pfModelProfile.StartTimer( CModelProfile::PTI_INITATTACHMENTS);
_pfModelProfile.StartTimer( CModelProfile::PTI_INITMODELRENDERING);
}
// Create render model structure for rendering an attached model
BOOL CModelObject::CreateAttachment( CRenderModel &rmMain, CAttachmentModelObject &amo)
{
_pfModelProfile.StartTimer( CModelProfile::PTI_CREATEATTACHMENT);
_pfModelProfile.IncrementTimerAveragingCounter( CModelProfile::PTI_CREATEATTACHMENT);
CRenderModel &rmAttached = *amo.amo_prm;
rmAttached.rm_ulFlags = rmMain.rm_ulFlags&(RMF_FOG|RMF_HAZE|RMF_WEAPON) | RMF_ATTACHMENT;
// get the position
rmMain.rm_pmdModelData->md_aampAttachedPosition.Lock();
const CAttachedModelPosition & = rmMain.rm_pmdModelData->md_aampAttachedPosition[amo.amo_iAttachedPosition];
rmMain.rm_pmdModelData->md_aampAttachedPosition.Unlock();
// copy common values
rmAttached.rm_vLightDirection = rmMain.rm_vLightDirection;
rmAttached.rm_fDistanceFactor = rmMain.rm_fDistanceFactor;
rmAttached.rm_colLight = rmMain.rm_colLight;
rmAttached.rm_colAmbient = rmMain.rm_colAmbient;
rmAttached.rm_colBlend = rmMain.rm_colBlend;
// unpack the reference vertices
FLOAT3D vCenter, vFront, vUp;
const INDEX iCenter = amp.amp_iCenterVertex;
const INDEX iFront = amp.amp_iFrontVertex;
const INDEX iUp = amp.amp_iUpVertex;
UnpackVertex( rmMain, iCenter, vCenter);
UnpackVertex( rmMain, iFront, vFront);
UnpackVertex( rmMain, iUp, vUp);
// create front and up direction vectors
FLOAT3D vY = vUp - vCenter;
FLOAT3D vZ = vCenter - vFront;
// project center and directions from object to absolute space
const FLOATmatrix3D &mO2A = rmMain.rm_mObjectRotation;
const FLOAT3D &vO2A = rmMain.rm_vObjectPosition;
vCenter = vCenter*mO2A +vO2A;
vY = vY *mO2A;
vZ = vZ *mO2A;
// make a rotation matrix from the direction vectors
FLOAT3D vX = vY*vZ;
vY = vZ*vX;
vX.Normalize();
vY.Normalize();
vZ.Normalize();
FLOATmatrix3D mOrientation;
mOrientation(1,1) = vX(1); mOrientation(1,2) = vY(1); mOrientation(1,3) = vZ(1);
mOrientation(2,1) = vX(2); mOrientation(2,2) = vY(2); mOrientation(2,3) = vZ(2);
mOrientation(3,1) = vX(3); mOrientation(3,2) = vY(3); mOrientation(3,3) = vZ(3);
// adjust for relative placement of the attachment
FLOAT3D vOffset;
FLOATmatrix3D mRelative;
MakeRotationMatrixFast( mRelative, amo.amo_plRelative.pl_OrientationAngle);
vOffset(1) = amo.amo_plRelative.pl_PositionVector(1) * mo_Stretch(1);
vOffset(2) = amo.amo_plRelative.pl_PositionVector(2) * mo_Stretch(2);
vOffset(3) = amo.amo_plRelative.pl_PositionVector(3) * mo_Stretch(3);
FLOAT3D vO = vCenter + vOffset * mOrientation;
mOrientation *= mRelative; // convert absolute to relative orientation
rmAttached.SetObjectPlacement( vO, mOrientation);
// done here if clipping optimizations are not allowed
extern INDEX gap_iOptimizeClipping;
if( gap_iOptimizeClipping<1) {
gap_iOptimizeClipping = 0;
_pfModelProfile.StopTimer( CModelProfile::PTI_CREATEATTACHMENT);
return TRUE;
}
// test attachment to frustum and/or mirror
FLOAT3D vHandle;
_aprProjection->PreClip( vO, vHandle);
CalculateBoundingBox( &amo.amo_moModelObject, rmAttached);
// compose view-space bounding box and sphere of an attacment
const FLOAT fR = Max( rmAttached.rm_vObjectMinBB.Length(), rmAttached.rm_vObjectMaxBB.Length());
const FLOATobbox3D boxEntity( FLOATaabbox3D(rmAttached.rm_vObjectMinBB, rmAttached.rm_vObjectMaxBB),
vHandle, _aprProjection->pr_ViewerRotationMatrix*mOrientation);
// frustum test?
if( gap_iOptimizeClipping>1) {
// test sphere against frustrum
INDEX iFrustumTest = _aprProjection->TestSphereToFrustum(vHandle,fR);
if( iFrustumTest==0) {
// test box if sphere cut one of frustum planes
iFrustumTest = _aprProjection->TestBoxToFrustum(boxEntity);
}
// mark if attachment is fully inside frustum
if( iFrustumTest>0) rmAttached.rm_ulFlags |= RMF_INSIDE;
else if( iFrustumTest<0) { // if completely outside of frustum
// signal skip rendering only if doesn't have any attachments
_pfModelProfile.StopTimer( CModelProfile::PTI_CREATEATTACHMENT);
return !amo.amo_moModelObject.mo_lhAttachments.IsEmpty();
}
}
// test sphere against mirror/warp plane (if any)
if( _aprProjection->pr_bMirror || _aprProjection->pr_bWarp) {
INDEX iMirrorPlaneTest;
const FLOAT fPlaneDistance = _aprProjection->pr_plMirrorView.PointDistance(vHandle);
if( fPlaneDistance < -fR) iMirrorPlaneTest = -1;
else if( fPlaneDistance > +fR) iMirrorPlaneTest = +1;
else { // test box if sphere cut mirror plane
iMirrorPlaneTest = boxEntity.TestAgainstPlane(_aprProjection->pr_plMirrorView);
}
// mark if attachment is fully inside mirror
if( iMirrorPlaneTest>0) rmAttached.rm_ulFlags |= RMF_INMIRROR;
else if( iMirrorPlaneTest<0) { // if completely outside mirror
// signal skip rendering only if doesn't have any attachments
_pfModelProfile.StopTimer( CModelProfile::PTI_CREATEATTACHMENT);
return !amo.amo_moModelObject.mo_lhAttachments.IsEmpty();
}
}
// all done
_pfModelProfile.StopTimer( CModelProfile::PTI_CREATEATTACHMENT);
return TRUE;
}