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CesiumGS / obj2gltf

Convert OBJ assets to glTF
Apache License 2.0
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Loss of Something on conversion #238

Open yunze89 opened 4 years ago

yunze89 commented 4 years ago

We had a some issues on conversion. (see below images and descriptions)

1. It seems that the surface of button is somehow partially gone. (The number of triangles is not changed, while the number of vertecies is decreased 1,088,424 to 264,382 on conversion)

obj-original Untitcccled

gltf Untitlevvvd

2. It seems that the unnecessary plane has added. (the number of vertecies is decreased too)

obj-original Untitlbbbed

gltf image

I don't know if these 2 problems are related to issue #235, #212 or #204. still occured in v3.1.0

**3. The RGB color applied on grey scale texture image is missing on conversion. See below the material definitions in .mtl and the texture image.

newmtl PT_FABRIC_FRONT_1322893 Ka 0.230915 0.199538 0.173866 Kd 0.898039 0.776013 0.676173 Ks 0.025778 0.025778 0.025778 Ns 5.000000 illum 2 d 1.000000 map_Ka 2.3mm_3_Edit.png map_Kd 2.3mm_3_Edit.png

2.3mm_3_Edit.png 2 3mm_3_Edit

left obj-original / right gltf 2

If You need these obj files, I can email it to You! : ) Thanks!