Virtual light source only illuminates certain surfaces
I am using Thingworx Studio 184.108.40.20699.
I have a flat L-profile which I want to visualize horizontally. When viewing the experience on a HoloLens, the long outer edge of the L-part is being illuminated, the rest appears colorless and faded. This can be seen in the following picture. Changing the viewing angle in Thingworx also changes the illumination.
Before importing the part into Thingworx I exported it as STEP from Solidworks.
I havent assigned any material or color in SolidWorks. The standard scenary with the standard light settings are being used.
My question is: Can I change the light behaviour of Thingworx to illuminate the part from another perspective? Do I have to change something in Solidworks so the part is being illuminated differently?