UV's are discarded if no material is referenced in .obj about obj2gltf HOT 9 CLOSED

I found at least one problem here - CesiumGS/gltf-pipeline#197. Once that's merged I'll update obj2gltf.

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@webprofusion-chrisc obj2gltf is now published with the fix

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I upgraded to a newer version of the gltf-pipeline and this issue seems to be fixed. Once #38 is in can you verify?

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Thanks! I'll check this out and get back to you.

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@webprofusion-chrisc I merged #38. Let us know if this is still an issue.

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Tried this out but unfortunately with the models I've tried I now get a shader error (loading using the threejs gltf loader). I can share the .obj privately if that helps. This fails in both firefox and chrome but only chrome reports the error. Obviously this could be a an issue with the threejs glTF loader but I wondered if you'd seen a similar error with anything else?:

Failed to load resource: net::ERR_INVALID_URL
data:text/plain;base64,precision highp float;uniform vec4 u_ambient;uniform vec4 u_diffuse;uniform vec4 u_emission;uniform vec4 u_specular;uniform float u_shininess;uniform float u_transparency;varying vec3 v_positionEC;varying vec3 v_normal;void main(void) { vec3 normal = normalize(v_normal); vec4 diffuse = u_diffuse; vec3 diffuseLight = vec3(0.0, 0.0, 0.0); vec3 specular = u_specular.rgb; vec3 specularLight = vec3(0.0, 0.0, 0.0); vec3 emission = u_emission.rgb; vec3 ambient = u_ambient.rgb; vec3 viewDir = -normalize(v_positionEC); vec3 ambientLight = vec3(0.0, 0.0, 0.0); ambientLight += vec3(0.2, 0.2, 0.2); vec3 l = vec3(0.0, 0.0, 1.0); diffuseLight += vec3(1.0, 1.0, 1.0) * max(dot(normal,l), 0.); vec3 h = normalize(l + viewDir); float specularIntensity = max(0., pow(max(dot(normal, h), 0.), u_shininess)); specularLight += vec3(1.0, 1.0, 1.0) * specularIntensity; vec3 color = vec3(0.0, 0.0, 0.0); color += diffuse.rgb * diffuseLight; color += specular * specularLight; color += emission; color += ambient * ambientLight; gl_FragColor = vec4(color * diffuse.a, diffuse.a * u_transparency);}

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It looks like the shader isn't being base64-encoded properly. I thought this was fixed but maybe not - you can send the model to [email protected].

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Thanks! Have tried this out and it's working well. I noticed I had trouble getting UVs to work for files exported from Rhino as .obj with long lines wrapped - wondered if that was a known issue? Unchecking the option to wrap long lines in the rhino export seemed to fix it.

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I'm not too surprised that it would fail for wrapped lines since the obj parser reads line by line. Do you have a sample obj that I can look at though?

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