Bicubic transform on ID channel is not bicubic #46641

New Issue

Anna Celarek · 2015-10-30T09:13:10+01:00

Anna Celarek commented

2015-10-30 09:13:10 +01:00

System Information
Windows 10, GTX 950M

Blender Version
Blender 2.76 3bc5399

Short description of error
Bicubic transform applied on an ID channel is not bicubic (no interpolation between pixels)

Exact steps for others to reproduce the error
See the .blend
The ID channel output is transformed without interpolation, only black or white pixels.
The exactly same output, saved as file, is transformed with interpolation as expected.

related:
https://developer.blender.org/T46408
https://developer.blender.org/rB8918e089a5ef

scale.blend

**System Information** Windows 10, GTX 950M **Blender Version** Blender 2.76 3bc5399 **Short description of error** Bicubic transform applied on an ID channel is not bicubic (no interpolation between pixels) **Exact steps for others to reproduce the error** See the .blend The ID channel output is transformed without interpolation, only black or white pixels. The exactly same output, saved as file, is transformed with interpolation as expected. related: https://developer.blender.org/T46408 https://developer.blender.org/rB8918e089a5ef [scale.blend](https://archive.blender.org/developer/F248281/scale.blend) ![scale_not_bicubic.jpg](https://archive.blender.org/developer/F248282/scale_not_bicubic.jpg)

Anna Celarek commented

2015-10-30 09:13:10 +01:00

Changed status to: 'Open'

Sergey Sharybin was assigned by Anna Celarek

2015-10-30 09:13:10 +01:00

Anna Celarek commented

2015-10-30 09:13:10 +01:00

Added subscriber: @AnnaCelarek

Sergey Sharybin commented

2015-11-03 11:33:06 +01:00

Ok, see what you mean now. Unfortunately, it's not really simple to do with the current compositor design, because bicubic filtering will happen before the ID mask node. There is one trick tho to make an ID Mask node to have it's buffer to force bicubic filtering happen after the ID mask selection.

Will prepare patch a bit later,

Ok, see what you mean now. Unfortunately, it's not really simple to do with the current compositor design, because bicubic filtering will happen before the ID mask node. There is one trick tho to make an ID Mask node to have it's buffer to force bicubic filtering happen after the ID mask selection. Will prepare patch a bit later,

blender-admin commented

2015-11-12 16:29:54 +01:00

This issue was referenced by 63f2f82f92

This issue was referenced by 63f2f82f92936ce642eaa95def1179304ef0b363

Sergey Sharybin commented

2015-11-12 16:31:38 +01:00

Changed status from 'Open' to: 'Resolved'

Sergey Sharybin closed this issue

2015-11-12 16:31:38 +01:00

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Bicubic transform on ID channel is not bicubic #46641