Collada export broken in 2.75-testbuild1 #44856

New Issue

Drongle McMahon · 2015-05-27T04:51:07+02:00

Drongle McMahon commented

2015-05-27 04:51:07 +02:00

System: Windows 64, 64 bit versions of Blender

Reproduction: in either 2.74 or 2.75-testbuild1
Open Blender with default settings and startup file. Select the default cube object and switch to edit mode. Create a new image in the UV edit panel. Unwrap with U, smart project. Observe that there is a UV map and that it is selected in object data properties. Export Collada with default settings (includes triangulation).

With Blender 2.74 release: The collada file has a default material and a UV map section. All polys in the are triangles.

With Blender 2.75-testbuild1: The collada file has no material and no UV map section. All polys in the polylist are quads. Although there is no for the UV map data, the has an for it with a "source" attribute url that is non-existent. The indexes into the non-existent look otherwise sensible.

System: Windows 64, 64 bit versions of Blender Reproduction: in either 2.74 or 2.75-testbuild1 Open Blender with default settings and startup file. Select the default cube object and switch to edit mode. Create a new image in the UV edit panel. Unwrap with U, smart project. Observe that there is a UV map and that it is selected in object data properties. Export Collada with default settings (includes triangulation). With Blender 2.74 release: The collada file has a default material and a UV map <source> section. All polys in the <polylist> are triangles. With Blender 2.75-testbuild1: The collada file has no material and no UV map <source> section. All polys in the polylist are quads. Although there is no <source> for the UV map data, the <polylist> has an <input> for it with a "source" attribute url that is non-existent. The indexes into the non-existent <source> look otherwise sensible.

Drongle McMahon commented

2015-05-27 04:51:07 +02:00

Changed status to: 'Open'

Drongle McMahon commented

2015-05-27 04:51:07 +02:00

Added subscriber: @Drongle

Gaia Clary was assigned by Sergey Sharybin

2015-05-27 10:21:28 +02:00

Sergey Sharybin commented

2015-05-27 10:21:28 +02:00

Added subscriber: @Sergey

Gaia Clary commented

2015-05-27 13:27:43 +02:00

Hi, Drongle;

I have recently changed the way how the exporter calculated triangulation.
I either overlooked that this change broke triangulation in some subtle way,
or a more recent change elsewhere in blender broke my recent changes.

However i reverted back to how it was calculated in Blender 2.74
Now it appears to work again as expected.

Thanks for reporting!

Hi, Drongle; I have recently changed the way how the exporter calculated triangulation. I either overlooked that this change broke triangulation in some subtle way, or a more recent change elsewhere in blender broke my recent changes. However i reverted back to how it was calculated in Blender 2.74 Now it appears to work again as expected. Thanks for reporting!

Drongle McMahon commented

2015-05-27 13:33:17 +02:00

Thank you Gaia, but does that fix the missing UV map data too?