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Gaia Clary eda377c223 update Collada Importer: reworked export and import of Materials ...

- added import of transparency and emission into principled BSDF Shader
- added support for importing all default collada material parameters

  * diffuse
  * emission
  * index_of_refraction
  * shininess (mapped to BSDF Roughness)
  * reflectivity (mapped to BSDF Metallic)
  * transparency + transparent mapped to BSDF Alpha)
  * ambient (creates unconnected texture node)
  * specular (creates unconnected texture node)
  * reflective(creates unconnected texture node)

- added support for exporting collada material parameters:

  * diffuse
  * emission
  * index_of_refraction
  * shininess (mapped to BSDF Roughness)
  * reflectivity (mapped to BSDF Metallic)
  * transparency + transparent mapped to BSDF Alpha)

- prepared support for exporting the following parameters
  but currently commented out:

  * ambient (creates unconnected texture node)
  * specular (creates unconnected texture node)
  * reflective(creates unconnected texture node)

  Problem: For now we only allow export of principled BSDF based
  materials. I am not sure from where to get ambient, specular
  and reflective as those values are not included in the
  principled BSDF Shader (wip).

2019-06-05 12:42:54 +02:00

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