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correct a potential divide by zero

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This commit is contained in:
Matt Larsen 2021-03-05 08:15:56 -08:00
parent a42bb1b0c7
commit 168952a0ce
1 changed files with 11 additions and 1 deletions
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12
vtkm/rendering/Wireframer.h
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@ -181,7 +181,17 @@ public:
, FrameBuffer(frameBuffer.PrepareForExecution(DeviceTag(), token))
, FieldMin(vtkm::Float32(fieldRange.Min))
{
InverseFieldDelta = 1.0f / vtkm::Float32(fieldRange.Length());
vtkm::Float32 fieldLength = vtkm::Float32(fieldRange.Length());
if (fieldLength == 0.f)
{
// constant color
FieldMin = 0.f;
InverseFieldDelta = 1.f;
}
else
{
InverseFieldDelta = 1.0f / fieldLength;
}
Offset = vtkm::Max(0.03f / vtkm::Float32(clippingRange.Length()), 0.0001f);
}