MantisBT - VTK |
| View Issue Details |
|
| ID | Project | Category | View Status | Date Submitted | Last Update |
| 0009061 | VTK | (No Category) | public | 2009-05-24 14:45 | 2013-04-05 20:15 |
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| Reporter | Nick Gnedin | |
| Assigned To | Utkarsh Ayachit | |
| Priority | normal | Severity | major | Reproducibility | always |
| Status | closed | Resolution | fixed | |
| Platform | | OS | | OS Version | |
| Product Version | | |
| Target Version | | Fixed in Version | | |
| Project | |
| Type | |
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| Summary | 0009061: Los of performance in 5.4.0 vs 5.2.0 |
| Description |
vtkPolyDataMapper in 5.4.0 resets display lists at every call. It seems that the problem is with vtkOpenGLDisplayListPainter.cxx. In the following piece of the code:
// First check for the cases where all display lists (irrespective of
// typeflags are obsolete.
if (
// Since input changed
input->GetMTime() > this->Internals->BuildTime ||
// actor's properties were modified
actor->GetProperty()->GetMTime() > this->Internals->BuildTime ||
// mapper information was modified
this->Information->GetMTime() > this->Internals->BuildTime)
{
this->Internals->ReleaseAllLists();
}
the if(...) statement is always true, and the display list is always
re-created, even when the input data does not change. Perhaps, input
gets Modified() somewhere where it should not.
That results in the major performance loss. That only happens when display non-opaque geometry with scalar data.
The test code that shows the catastrophic perfomance difference between 5.2.0 and 5.4.0 is attached.
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| Steps To Reproduce | |
| Additional Information | |
| Tags | No tags attached. |
| Relationships | |
| Attached Files |  Test.cpp (2,285) 2009-05-24 14:45
https://www.vtk.org/Bug/file/7267/Test.cpp |
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| Issue History |
| Date Modified | Username | Field | Change |
| 2009-05-24 14:45 | Nick Gnedin | New Issue | |
| 2009-05-24 14:45 | Nick Gnedin | File Added: Test.cpp | |
| 2010-03-19 11:32 | Utkarsh Ayachit | Note Added: 0019965 | |
| 2010-03-19 11:32 | Utkarsh Ayachit | Status | backlog => @80@ |
| 2010-03-19 11:32 | Utkarsh Ayachit | Resolution | open => fixed |
| 2010-03-19 11:32 | Utkarsh Ayachit | Assigned To | => Utkarsh Ayachit |
| 2011-01-13 17:00 | | Source_changeset_attached | => VTK master a2bd8391 |
| 2011-01-13 17:00 | | Source_changeset_attached | => VTK master 020ef709 |
| 2011-06-16 13:11 | Zack Galbreath | Category | => (No Category) |
| 2013-04-05 20:15 | Berk Geveci | Status | customer review => closed |