Good morning.
I’ve imported a mesh via Collada .DAE. Remode doubles, recalc Nolmals outside.
Applied the same material as the default cube.
When I render with Cycles with a HDR as light, cube is normal but the other object is not (almost black).
Can you help me please?
strange piece.blend (1.0 MB)
Checking the face orientation it seems that the Recalculate Normals command didn´t worked due to wrong geometry.
Quick turnaround: Export the selected object to .obj and reimport it with the Validate Meshes Option checked in the import window.
Now in Edit Mode Recalculate Normals will do the job.
Sometimes exporters/importers include methods to fix wrong geometries, you can do the same with .fbx (in this case you will have to Clear Sharp Edges after import).
Thank you very much!