Hello,
tried to achieve an easy to handle barndoor light effect with rectanglular pattern image in distribution node of blackbody emission. Projection mode of image is set "XYZ to UVW" in object space and if I rotate the emitter in octane via transform node the pattern light is following accordingly.
But when I import rotated emitting mesh then beams are not following the normal of the surface. This is strange and should more be like IES files, of course the rays should follow orientation of surface and in workflow I have to import numerous emitting surfaces in my scenes.
Any solutions?
Best,
Andreas