Fix T81537: UV index greater than total UV coordinates
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Authored by hejing (campanulamediuml) on Oct 8 2020, 4:43 PM.

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Campbell Barton (campbellbarton)

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T81537: wavefront OBJ: exception due to face UV index greater than total coordinates.

Summary

Fix T81537

In very rare cases, when face_uvidx is larger than len(verts_tex),
it will raise an Exception that makes import failed. So I add
an (0.0,0.0) data pair to make the function run well.

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Repository: rBA Blender Add-ons

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hejing (campanulamediuml) requested review of this revision.Oct 8 2020, 4:43 PM

hejing (campanulamediuml) created this revision.

Shouldn't the exporter fix it? Does the spec [1] allow for (any) index to be greater than total coordinates written ?

https://wikipedia.org/wiki/Wavefront_.obj_file#External_links

Ankit Meel (ankitm) retitled this revision from Solve an "index out of range" Bug to Fix T81537: UV index greater than total UV coordinates .Oct 8 2020, 5:27 PM

Ankit Meel (ankitm) edited the summary of this revision. (Show Details)

Ankit Meel (ankitm) removed a project: Add-ons (Community).

Ankit Meel (ankitm) added a task: T81537: wavefront OBJ: exception due to face UV index greater than total coordinates. .

hejing (campanulamediuml) added a comment.Oct 8 2020, 5:49 PM

This comment was removed by hejing (campanulamediuml).

wait, I know what happen now...
my obj file hide the vt 0.0, 0.0

so maybe this update could be a patch about compatibility :)

As discussed in the bug report, exporter should be fixed.