armory icon indicating copy to clipboard operation
armory copied to clipboard

Normal mapping results in artifacts when both mesh batching and precompute tangents options are enabled

Open QuantumCoderQC opened this issue 1 year ago • 0 comments

Description When both Batch Meshes and Precompute Tangents options are enabled, strange artefacts appear on the rendered mesh.

For example, consider a 2 X 2 arrangement of 4 identical grid mesh objects: image

The meshes share the following material setup: image

Either/ both options disabled Both options enabled
Correct: image Incorrect: image

Also, this issue does not happen if all the objects share the same mesh data (like linked duplicates).

To Reproduce Run the provided blend file.

System Blender: 3.3 LTS Armory: SDK 2023.4 OS: Windows 10 Graphics card: Nvdia 2030

Test File Mesh Batch Normal Mapping Tangents.zip

QuantumCoderQC avatar Apr 07 '23 18:04 QuantumCoderQC