[BUG] Adobe Dimension 4.1 Doesn’t Recognize Backslash \ Paths in .mtl Files on macOS

Description of the Issue

When importing an OBJ model in Adobe Dimension 4.1 on macOS, texture references fail to load if the .mtl file uses Windows-style backslash \ separators (e.g., map_Kd textures\my_diffuse.jpg). Editing the MTL file to use forward slashes (/) instead (map_Kd textures/my_diffuse.jpg) resolves the issue, indicating Dimension 4.1 is not properly handling backslash-based paths on macOS.

Steps to Reproduce

1. On macOS, prepare an OBJ file with a corresponding MTL file containing backslash-based texture paths, for example:

map_Kd textures\building_diffuse.jpg

2. Import or open the OBJ in Adobe Dimension 4.1.

3. Observe that the textures do not load, resulting in a missing or default material.

4. Open the MTL file in a text editor and replace backslashes with forward slashes:

map_Kd textures/building_diffuse.jpg

5. Re-import the OBJ and notice that the textures now load correctly.

Expected Behavior

Adobe Dimension 4.1 should recognize and properly parse both backslashes (\) and forward slashes (/) in MTL texture paths, ensuring out-of-the-box compatibility with MTL files exported from Windows-based pipelines.

Actual Behavior

Dimension fails to load textures when paths are written with backslashes, forcing users to manually edit MTL files to replace \ with / in order to see materials and textures correctly in the scene.

System Configuration

• OS: macOS (various versions, including the latest)

• Application: Adobe Dimension 4.1

Request

• Please add support for Windows-style backslash paths in .mtl files in Adobe Dimension 4.1 (and future updates).

• This will prevent disruptions for artists working cross-platform and ensure Dimension seamlessly recognizes texture references regardless of path separator style.

Thank you for addressing this issue and helping improve the cross-platform workflow in Adobe Dimension!