Combine XYZ transform from Degrees to Radians #84374

New Issue

Massimiliano Puliero · 2021-01-04T14:30:36+01:00

2021-01-04 14:30:36 +01:00

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce RTX 2070 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 457.51

Blender Version
Broken: version: 2.91.0, branch: master, commit date: 2020-11-25 08:34, hash: 0f45cab862
Worked: (newest version of Blender that worked as expected)

Short description of error
I try to expose the Rotation option of the mapping node by usign a Combine XYZ node, but I noticed that it converts the value from Degrees to Radians.

Exact steps for others to reproduce the error
Opne the file, I pinned the 2 nodes editors, so it's easier to compare the two behaviors.

In order to get a 90° degrees rotation using the Combine XYZ node I had to use π/2.
While on the right I got it by using the Mapping node slot with a value in degrees at 90.

Since I think the fastes way to expose those 3 values is by using the Combine XYZ, I expect that the result won't change.

thank you.

angle_degrees.blend

**System Information** Operating system: Windows-10-10.0.18362-SP0 64 Bits Graphics card: GeForce RTX 2070 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 457.51 **Blender Version** Broken: version: 2.91.0, branch: master, commit date: 2020-11-25 08:34, hash: `0f45cab862` Worked: (newest version of Blender that worked as expected) **Short description of error** I try to expose the Rotation option of the mapping node by usign a Combine XYZ node, but I noticed that it converts the value from Degrees to Radians. **Exact steps for others to reproduce the error** Opne the file, I pinned the 2 nodes editors, so it's easier to compare the two behaviors. In order to get a 90° degrees rotation using the Combine XYZ node I had to use π/2. While on the right I got it by using the Mapping node slot with a value in degrees at 90. Since I think the fastes way to expose those 3 values is by using the Combine XYZ, I expect that the result won't change. thank you. [angle_degrees.blend](https://archive.blender.org/developer/F9550303/angle_degrees.blend)

Massimiliano Puliero commented

2021-01-04 14:30:36 +01:00

Added subscriber: @MassimilianoPuliero

Falk David commented

2021-01-04 16:14:31 +01:00

Added subscriber: @filedescriptor

Falk David commented

2021-01-04 16:14:31 +01:00

What exactly is the bug here? As far as I can see this behavior is exactly expected since 90deg = pi/2 radians = 1.571... and the "combine XYZ" does not have fields of type "angle", just plain values. I guess a "Combine Rotation" or "Radians to Degrees" node would be nice to have, but then it's a feature request.

Philipp Oeser commented

2021-01-04 16:52:00 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2021-01-04 16:52:00 +01:00

Internally, all angles are radians, this is just displayed as degrees in the UI.
This is similar to #81389 (The 'Vector Rotate' node's 'Angle' input is displayed in degrees but uses radians when something is plugged into it.) or #49062 ("Rotate" compositor node units inconsistent).

Dont think this is a bug, so unless I am missing something and this is different from #81389: will merge with #81389

Note: you could of course use the Converter > Math node set to To Radians mode, but this requires more clicks...

Internally, all angles are radians, this is just displayed as degrees in the UI. This is similar to #81389 (The 'Vector Rotate' node's 'Angle' input is displayed in degrees but uses radians when something is plugged into it.) or #49062 ("Rotate" compositor node units inconsistent). Dont think this is a bug, so unless I am missing something and this is different from #81389: will merge with #81389 Note: you could of course use the `Converter` > `Math` node set to `To Radians` mode, but this requires more clicks...

Philipp Oeser commented

2021-01-04 16:52:19 +01:00

Closed as duplicate of #81389

Philipp Oeser closed this issue

2021-01-04 16:52:19 +01:00

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Combine XYZ transform from Degrees to Radians #84374