armory3d / armory3d/armorpaint
Bump node issues
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- C
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Description
**ArmorPaint version:**
ArmorPaint.org - v0.8 (2021-04-28) - e334850
**OS/device including version:**
Win10 x64
**Issue description:**
Bump node produces several unexpected results.
**Steps to reproduce:**
**1. Issue**
Build the following graph in ArmorPaint and in Blender
By using the standard 2mx2mx2m cube from Blender in both programms, we get
ArmorPaint's result is way different
**2. Issue**
I build myself a simple Bump height map
and used it in Blender and in ArmorPaint. The idea was to compare the normal vector directions.
Blender:
ArmorPaint:
Notice that the normal vector directions are different. If you look carefully you can see that they differ by a flip in y-direction. To highlight this I set strength 5 in ArmorPaint vs. strength 1 in Blender as the strength differs.
Contributor guide
No contributing guide indexed for this repository
Research direction
Reproduce both reported bump-node graphs in ArmorPaint and Blender using the standard 2m cube and the supplied height map. Compare the resulting normal directions, especially the Y direction and the different strength values; done means ArmorPaint's results match the Blender comparison for these cases. No source file or test is named in the issue.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- blender
- Domain
- computer-graphics
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100