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key0p

Exporting Your Uv Mapped Model To .3ds

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When you export a mesh to .3ds format with "Preserve MAX's Texture Coordinates" enabled, it creates errors in 2 ways.

 

First up, the UV stitching get corrpted.While the UV co-ordinates themselves remain in place, some of their welds get broken.You can see in the following image, the UV edges(green lines) before export, and after export.

 

UVstitching.jpg

 

 

WHile the co-ordinates themselves remain intact, unstitched vertices are slower to render.It also complicates the second problem, which is that the mesh becomes broken along the UV edges.You can see in the following image that the top of the mesh is one single element, however after export it has been broken into multiple elements.

 

Elements.jpg

 

 

To avoid this, you need to save the UV layout, and export the model with "Preserve MAX's Texture Coordinates" disabled.

 

PreserveOff.jpg

 

 

To save the UV layout, first apply an Unwrap UVW modifier to the mesh, then in the Parameters rollout, click 'Save'

 

SaveUVs.jpg

 

Upon importing your model, apply the Unwrap UVW modfier again, and load the UV file you saved.

 

If you follow this procedure, you will not encounter mesh division due to UV mapping, and your UV seams will also remain intact.

Edited by key0p

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I tried applying a saved UVmap from max6 to a 3ds mesh exported without the unwrap into Gmax. The unwrap was very distorted and unusable. What would cause this?

 

here is what i saw:

 

distorted.jpg

 

cobra_unwrap.jpg

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could you please attach the files so I can take a look at them, I havent seen it happen before.

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the problem is that you are exporting the UVs and geometry from an editable poly. Collapse to an editable mesh, and try again.

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