Downsampling algorithm used at 50% feature

Corona Corona for 3ds Max General
1

What downsampling algorithm is used for the new Save 50% feature?
Is it Bicubic Sharper or Lanczos3?

Also, does it work correctly with 32-bit float RAW images (CXR/EXR) as well?
In that case, are all AOV channels downsampled to 50%?

2

Hello, currently we are using bilinear interpolation. It works well with the CXR format (including AOVs/render elements). It doesn’t work well with the EXR format as it’s handled by 3ds Max. When saving to EXR, you will end up with AOVs in full size, cropped to 50%.

exr-beauty-element.jpg
exr-beauty-element.jpg1213×412 54.6 KB

3

Thank you for the detailed information.

We look forward to having the option to choose the downsampling algorithm in the future.

We also appreciate you explaining that OpenEXR goes through 3ds Max I/O and therefore has limitations regarding AOVs. This was very helpful and informative.

4

You’re welcome!

Could you please log this feature request at our Ideas Portal - https://chaoscorona.ideas.aha.io/