Mesh* TriPatchObject::GetRenderMesh(TimeValue t, INode *inode, View& view, BOOL& needDelete) {
UpdatePatchMesh(t);
TessApprox tess = patch.GetProdTess();
if (tess.type == TESS_SET) {
needDelete = FALSE;
patch.InvalidateMesh(); // force this...
// temporarlily set the view tess to prod tess
TessApprox tempTess = patch.GetViewTess();
patch.SetViewTess(tess);
PrepareMesh(t);
patch.SetViewTess(tempTess);
return &patch.GetMesh();
} else {
Mesh *nmesh = new Mesh/*(mesh)*/;
Matrix3 otm = inode->GetObjectTM(t);
Box3 bbox;
GetDeformBBox(t, bbox);
tess.merge *= Length(bbox.Width())/1000.0f;
TessApprox disp = patch.GetDispTess();
disp.merge *= Length(bbox.Width())/1000.0f;
GetGTessFunction();
(*psGTessFunc)(&patch, BEZIER_PATCH, &otm, nmesh, &tess, &disp, &view, inode->GetMtl(), FALSE, FALSE);
if (tess.merge > 0.0f && patch.GetProdTessWeld())
WeldMesh(nmesh, tess.merge);
needDelete = TRUE;
return nmesh;
}
}
bool TriPatchObject::UpdatePerNodeItems(const MaxSDK::Graphics::UpdateDisplayContext& updateDisplayContext,
MaxSDK::Graphics::UpdateNodeContext& nodeContext,
MaxSDK::Graphics::IRenderItemContainer& targetRenderItemContainer)
{
Mesh& mesh = patch.GetMesh();
if(mesh.getNumVerts()>0)
{
using namespace MaxSDK::Graphics;
GenerateMeshRenderItemsContext generateRenderItemsContext;
generateRenderItemsContext.GenerateDefaultContext(updateDisplayContext);
generateRenderItemsContext.RemoveInvisibleMeshElementDescriptions(nodeContext.GetRenderNode());
IMeshDisplay2* pMeshDisplay = static_cast<IMeshDisplay2*>(mesh.GetInterface(IMesh_DISPLAY2_INTERFACE_ID));
if (NULL == pMeshDisplay)
{
return false;
}
pMeshDisplay->GetRenderItems(generateRenderItemsContext,nodeContext,targetRenderItemContainer);
return true ;
}
return false;
}
int TriPatchObject::Display(TimeValue t, INode* inode, ViewExp *vpt, int flags) {
if ( ! vpt || ! vpt->IsAlive() )
{
// why are we here
DbgAssert(!_T("Invalid viewport!"));
return FALSE;
}
Matrix3 tm;
GraphicsWindow *gw = vpt->getGW();
gw->setTransform(inode->GetObjectTM(t));
UpdatePatchMesh(t);
if(!MaxSDK::Graphics::IsRetainedModeEnabled())
{
if(!(gw->getRndMode() & GW_BOX_MODE)) {
PrepareMesh(t);
Mesh& mesh = patch.GetMesh();
if(mesh.getNumVerts()) {
mesh.render( gw, inode->Mtls(),
(flags&USE_DAMAGE_RECT) ? &vpt->GetDammageRect() : NULL,
COMP_ALL | (inode->Selected()?COMP_OBJSELECTED:0), inode->NumMtls());
}
}
}
patch.render( gw, inode->Mtls(),
(flags&USE_DAMAGE_RECT) ? &vpt->GetDammageRect() : NULL,
COMP_ALL | (inode->Selected()?COMP_OBJSELECTED:0), inode->NumMtls());
return(0);
}
Object* TriPatchObject::ConvertToType(TimeValue t, Class_ID obtype) {
if(obtype == patchObjectClassID || obtype == defObjectClassID || obtype == mapObjectClassID) {
PatchObject *ob;
UpdatePatchMesh(t);
ob = new PatchObject();
ob->patch = patch;
ob->SetChannelValidity(TOPO_CHAN_NUM,ObjectValidity(t));
ob->SetChannelValidity(GEOM_CHAN_NUM,ObjectValidity(t));
return ob;
}
if(obtype == triObjectClassID) {
TriObject *ob = CreateNewTriObject();
PrepareMesh(t);
ob->GetMesh() = patch.GetMesh();
ob->SetChannelValidity(TOPO_CHAN_NUM,ObjectValidity(t));
ob->SetChannelValidity(GEOM_CHAN_NUM,ObjectValidity(t));
return ob;
}
#ifndef NO_NURBS
if (obtype==EDITABLE_SURF_CLASS_ID) {
PatchObject *pob;
UpdatePatchMesh(t);
pob = new PatchObject();
pob->patch = patch;
Object *ob = BuildEMObjectFromPatchObject(pob);
delete pob;
ob->SetChannelValidity(TOPO_CHAN_NUM, ObjectValidity(t));
ob->SetChannelValidity(GEOM_CHAN_NUM, ObjectValidity(t));
return ob;
}
#endif
if (Object::CanConvertToType (obtype)) return Object::ConvertToType (t, obtype);
if (CanConvertPatchObject (obtype)) {
PatchObject *ob;
UpdatePatchMesh(t);
ob = new PatchObject();
ob->patch = patch;
ob->SetChannelValidity(TOPO_CHAN_NUM,ObjectValidity(t));
ob->SetChannelValidity(GEOM_CHAN_NUM,ObjectValidity(t));
Object *ret = ob->ConvertToType (t, obtype);
ob->DeleteThis ();
return ret;
}
return NULL;
}
int TriPatchObject::Display(TimeValue t, INode* inode, ViewExp *vpt, int flags) {
Matrix3 tm;
GraphicsWindow *gw = vpt->getGW();
gw->setTransform(inode->GetObjectTM(t));
UpdatePatchMesh(t);
if(!(gw->getRndMode() & GW_BOX_MODE)) {
PrepareMesh(t);
Mesh& mesh = patch.GetMesh();
if(mesh.getNumVerts()) {
mesh.render( gw, inode->Mtls(),
(flags&USE_DAMAGE_RECT) ? &vpt->GetDammageRect() : NULL,
COMP_ALL | (inode->Selected()?COMP_OBJSELECTED:0), inode->NumMtls());
}
}
patch.render( gw, inode->Mtls(),
(flags&USE_DAMAGE_RECT) ? &vpt->GetDammageRect() : NULL,
COMP_ALL | (inode->Selected()?COMP_OBJSELECTED:0), inode->NumMtls());
return(0);
}
bool TriPatchObject::UpdateDisplay(
const MaxSDK::Graphics::MaxContext& maxContext,
const MaxSDK::Graphics::UpdateDisplayContext& displayContext)
{
// create a mesh to display (leave it in cache)
PrepareMesh(displayContext.GetDisplayTime());
Mesh& mesh = patch.GetMesh();
if(mesh.getNumVerts()>0)
{
using namespace MaxSDK::Graphics;
GenerateMeshRenderItemsContext generateRenderItemsContext;
generateRenderItemsContext.GenerateDefaultContext(displayContext);
mesh.GenerateRenderItems(mRenderItemHandles,generateRenderItemsContext);
return true ;
}
return false;
}
bool TriPatchObject::PrepareDisplay(const MaxSDK::Graphics::UpdateDisplayContext& prepareDisplayContext)
{
PrepareMesh(prepareDisplayContext.GetDisplayTime());
Mesh& mesh = patch.GetMesh();
if(mesh.getNumVerts()>0)
{
using namespace MaxSDK::Graphics;
mRenderItemHandles.ClearAllRenderItems();
IMeshDisplay2* pMeshDisplay = static_cast<IMeshDisplay2*>(mesh.GetInterface(IMesh_DISPLAY2_INTERFACE_ID));
if (NULL == pMeshDisplay)
{
return false;
}
GenerateMeshRenderItemsContext generateMeshRenderItemsContext;
generateMeshRenderItemsContext.GenerateDefaultContext(prepareDisplayContext);
pMeshDisplay->PrepareDisplay(generateMeshRenderItemsContext);
return true ;
}
return false;
}
ObjectHandle TriPatchObject::CreateTriObjRep(TimeValue t) {
TriObject *tri = CreateNewTriObject();
PrepareMesh(t); // Turn it into a mesh
tri->GetMesh() = patch.GetMesh(); // Place it into the TriObject
return(ObjectHandle(tri));
}
