imagenesis
February 9, 2018, 3:00am
1
The blender scaler appears to be very low in quality in comparison to the following scaling implementations:
Windows Photo Viewer
What is the implementation used for scaling in Blender and what are the implementations used in the above software?
I have used trilinear interpolation as provided by Starling (Adobe Flash Stage3d scenegraph library) and it appears to be of low quality.
Considering this, what is the state of the art to achieve high quality, efficient (real time and otherwise) scaling of raster images?
3pointEdit
February 9, 2018, 3:52am
2
Yes the scaling algo used in Blender is not optimum. Here is an old patch page outlining the issues: https://wiki.blender.org/index.php/User:Sobotka/Cubic_B-Spline_Scaling_Algorithm
And here is why we won’t be getting it https://developer.blender.org/D2984
imagenesis
February 9, 2018, 5:57am
3
Okay, I just found that you can specify bicubic in the Transform node of the compositor. The scale node doesn’t offer that selection. Bicubic looks much better.
