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Fix T54225: Blur node stopped working when Map Range was fed with image 

The issue was happening with fast Gaussian blur, and caused by NaN value pixels
in the input buffer.

Now made it so Map Range output does not produce NaN, by returning arbitrary
value of 0. Still better than NaN!
This commit is contained in:
Sergey Sharybin 2018-03-05 11:44:42 +01:00
parent 9593a62746
commit 63d8ccf9ff
Notes: blender-bot 2023-02-14 06:08:54 +01:00 
Referenced by issue #54225, Blur node stopped working when Map Range was fed with image
1 changed files with 5 additions and 0 deletions
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5
source/blender/compositor/operations/COM_MapRangeOperation.cpp
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@ -65,6 +65,11 @@ void MapRangeOperation::executePixelSampled(float output[4], float x, float y, P
dest_min = inputs[3];
dest_max = inputs[4];
if (fabsf(source_max - source_min) < 1e-6f) {
output[0] = 0.0f;
return;
}
if (value >= -BLENDER_ZMAX && value <= BLENDER_ZMAX) {
value = (value - source_min) / (source_max - source_min);
value = dest_min + value * (dest_max - dest_min);