import FBX fails on bump maps on 2.90.1 #81821

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opened 2020-10-19 00:02:28 +02:00 by (Deleted) · 4 comments
(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)
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Added subscriber: @(Deleted)

Added subscriber: @(Deleted)
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Added subscriber: @OmarEmaraDev

Added subscriber: @OmarEmaraDev
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Changed status from 'Needs Triage' to: 'Confirmed'

Changed status from 'Needs Triage' to: 'Confirmed'
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I can replicate on latest version still.

I can replicate on latest version still.
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Reference: blender/blender-addons#81821
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