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ID	Project	Category	View Status	Date Submitted	Last Update
0012786	VTK	(No Category)	public	2011-12-09 09:35	2012-04-16 20:22

Reporter	Pavel Pokutnev
Assigned To	Lisa Avila
Priority	high	Severity	minor	Reproducibility	have not tried
Status	closed	Resolution	fixed
Platform		OS		OS Version
Product Version	5.8.0
Target Version		Fixed in Version
Project	TBD
Type	crash

Summary	0012786: BUG in vtkFixedPointVolumeRayCastMapper
Description	There are some int overflow bugs in vtkFixedPointVolumeRayCastMapper, if used with big volumes [2000 * 2000 * 2000] > [max(int) = 2147483647] and shading enabled. BUG 1: Line 2787 / 2788 int sliceSize = dim[0]dim[1]((independent)?(components):(1)); int numSlices = dim[2]; should be: vtkIdType sliceSize = dim[0]dim[1]((independent)?(components):(1)); vtkIdType numSlices = dim[2]; because of line 2840, 2848, … where the actual int overflow happens (numSlices * sliceSize)! BUG 2: Line 98 int x, y, z; should be: vtkIdType x, y, z; because of line 171, where the actual int overflow happens (dptr = dataPtr + z * dim[0] * dim[1] + y * dim[0] + xlow;) Attached to this bug report you will find the fixed version of vtkFixedPointVolumeRayCastMapper.cxx.
Steps To Reproduce
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Attached Files	vtkFixedPointVolumeRayCastMapper.cxx (110,696) 2011-12-09 09:35 https://www.vtk.org/Bug/file/9087/vtkFixedPointVolumeRayCastMapper.cxx

Issue History
Date Modified	Username	Field	Change
2011-12-09 09:35	Pavel Pokutnev	New Issue
2011-12-09 09:35	Pavel Pokutnev	File Added: vtkFixedPointVolumeRayCastMapper.cxx
2011-12-09 09:56	Utkarsh Ayachit	Assigned To	=> Lisa Avila
2011-12-09 09:56	Utkarsh Ayachit	Status	backlog => tabled
2012-02-21 18:03	David Gobbi	Note Added: 0028316
2012-04-16 20:22	David Gobbi	Note Added: 0028481
2012-04-16 20:22	David Gobbi	Status	tabled => closed
2012-04-16 20:22	David Gobbi	Resolution	open => fixed

Notes