Hi there!
I'm testing the Arnold for C4D demo and I came across a rather weird issue with the Skydome reflections. I've rendered the same image in Vray, Corona, Physical and Arnold, and I keep getting an unexpected result with Arnold.
Here's the renders comparison of a simple chrome sphere and a sky or dome object in each render engine:
Arnold is the only renderer that shows me an inverted version of the Arnold Sky image, rotated 180º.
If I adjust the Arnold Sky coordinates to 90º, 180º, 0º and invert the Y scale it shows the same as the other render engines, but by default it shows me an inverted and rotated reflection.
I'm using this HDRI file from HDRI Haven:
https://hdrihaven.com/hdri/?c=studio&h=photo_studio_01
I've tested other HDRI files, from other sources like Grayscale Gorilla, but the results are the same.
I've also created an alternative setup in Arnold, with a basic sphere acting as a sky, with the same HDRI applied to it, which produced the same results as the other render engines.
I'm using the latlong coordinates in Arnold Sky, but the other options produce even worst results.
Am I missing something? Might this be related to the default Arnold sky coordinates?
Thanks!!
