import FBX fails on bump maps on 2.90.1 #81821

New Issue

Omar Emara · 2020-10-19T00:02:28+02:00

(Deleted) commented

2020-10-19 00:02:28 +02:00

(Migrated from localhost:3001)

when importing a scene from a FBX file, which has a bump (=height) map instead of a tangent-space normal map,
a normal-map node (with tangent-space) is created instead of a bump map node.
And the TexImage node of the bump map is missing (when loading a FBX which was exported by Blender FBX exporter)

blend file (incl. textures):
bumpTest.zip

Steps:
try to import bumpTestA_1.fbx into a scene and look into Shader Editor
(exporting from FBX obviously does not write the bump texture;

but the problem also happens on importing FBX files, which have bump maps; or they were wrongly connected to normal maps; I cannot checkout that, cause they were from third party content)

Broken: 2.90.1 (official release)

when importing a scene from a FBX file, which has a bump (=height) map instead of a tangent-space normal map, a normal-map node (with tangent-space) is created instead of a bump map node. And the TexImage node of the bump map is missing (when loading a FBX which was exported by Blender FBX exporter) blend file (incl. textures): [bumpTest.zip](https://archive.blender.org/developer/F9013793/bumpTest.zip) Steps: try to import bumpTestA_1.fbx into a scene and look into Shader Editor (exporting from FBX obviously does not write the bump texture; but the problem also happens on importing FBX files, which have bump maps; or they were wrongly connected to normal maps; I cannot checkout that, cause they were from third party content) Broken: 2.90.1 (official release)

(Deleted) commented

2020-10-19 00:02:28 +02:00

(Migrated from localhost:3001)

Added subscriber: @(Deleted)

Omar Emara commented

2022-03-07 15:18:03 +01:00

Added subscriber: @OmarEmaraDev

Omar Emara commented

2022-03-07 15:18:03 +01:00

Changed status from 'Needs Triage' to: 'Confirmed'

Omar Emara commented

2022-03-07 15:18:03 +01:00

I can replicate on latest version still.

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import FBX fails on bump maps on 2.90.1 #81821