// 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;
}
int ReadMesh(char** buf, int frmcount, float scale, uint32 flags)
{
if(!*buf) return 1;
MEMesh2 *mesh=(MEMesh2*)*buf;
MEMD2_VERTEX *vb;
if(!scale) scale=1.0f;
*buf+=sizeof(MEMesh2);
if(!mesh->vcount || !mesh->icount) return 1;
mesh->Scale.x=65525.0f/mesh->Scale.x;
mesh->Scale.y=65525.0f/mesh->Scale.y;
mesh->Scale.z=65525.0f/mesh->Scale.z;
mesh->UVScale.x=65525.0f/mesh->UVScale.x;
mesh->UVScale.y=65525.0f/mesh->UVScale.y;
F3DSubObject &sub = pModel->GetMeshChunk()->subObjects.push();
MFString_Copy(sub.name, mesh->Name);
sub.matSubobjects[0].materialIndex = mesh->MaterialID;
// read vertex data
for(int a=0; a<frmcount; a++)
{
vb=(MEMD2_VERTEX*)*buf;
if(a == 0) // only first frame for now...
{
for(int b=0; b<mesh->vcount; b++)
{
UnpackVertex(&vb[b], mesh, scale, sub);
}
}
*buf+=sizeof(MEMD2_VERTEX)*mesh->vcount;
}
// read triangles
MFDebug_Assert(mesh->icount % 3 == 0, "Incorrect number of indices...");
F3DMaterialSubobject &msub = sub.matSubobjects[0];
uint16 *pI = (uint16*)*buf;
int tris =0;
int v = 0;
for(int a=0; a<mesh->icount; a++)
{
msub.triangles[tris].v[v] = pI[a];
++v;
if(v>=3)
{
v = 0;
++tris;
}
}
*buf+=sizeof(unsigned short)*mesh->icount;
return 0;
}
