Vector transform not behaving correctly with camera space and cycles #47288

New Issue

Clément Foucault · 2016-01-31T23:04:35+01:00

Clément Foucault commented

2016-01-31 23:04:35 +01:00

System Information
Windows x64 with GT960

Blender Version
Broken: 2.76.9 24f95a1

Short description of error
Vector transform node is not transforming correctly in glsl mode with Cycles.
Cycles camera Z vector is the oposite of the camera Z in BI.
So you need to have to invert the Z before applying the matrix when transforming from Camera Space, and after when transforming to Camera Space.

Exact steps for others to reproduce the error
Use a Vector transform node inside cycles with camera space. The render and the material preview does not match.

See this for a working version of the glsl in cycles.

371c289af8 (diff-17)

**System Information** Windows x64 with GT960 **Blender Version** Broken: 2.76.9 24f95a1 **Short description of error** Vector transform node is not transforming correctly in glsl mode with Cycles. Cycles camera Z vector is the oposite of the camera Z in BI. So you need to have to invert the Z before applying the matrix when transforming **from** Camera Space, and after when transforming **to** Camera Space. **Exact steps for others to reproduce the error** Use a Vector transform node inside cycles with camera space. The render and the material preview does not match. See this for a working version of the glsl in cycles. https://github.com/Hypersomniac/blender-shader/commit/371c289af8f44264854b697fa095425e00d69c70#diff-17 ![Capture.JPG](https://archive.blender.org/developer/F279363/Capture.JPG)

Clément Foucault commented

2016-01-31 23:04:35 +01:00

Changed status to: 'Open'

Alexander Romanov was assigned by Clément Foucault

2016-01-31 23:04:35 +01:00

Clément Foucault commented

2016-01-31 23:04:35 +01:00

Added subscriber: @fclem

blender-admin commented

2016-02-01 16:46:32 +01:00

This issue was referenced by 25de685d36

This issue was referenced by 25de685d3668b6ed10af144ff33e2d44da00df61

Alexander Romanov commented

2016-02-01 16:46:57 +01:00

Changed status from 'Open' to: 'Resolved'

Alexander Romanov closed this issue

2016-02-01 16:46:57 +01:00

Alexander Romanov commented

2016-02-01 16:54:24 +01:00

Thanks for the report and for the help!
Initially I wanted to transfer the correct matrices, but I met many problems that may lead in serious regression. So I used your fix.

Thanks for the report and for the help! Initially I wanted to transfer the correct matrices, but I met many problems that may lead in serious regression. So I used your fix.

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Vector transform not behaving correctly with camera space and cycles #47288