Tweet
Hi,
I seem to remember that when dealing with multiple panes of glass, one behind another (sometimes 8 layers of glass or more the camera is looking through), I needed to crank up the refraction depth for things to look correct.
Now I was rendering an interior office with lots of glass and all of a sudden my chrome materials were completely black when I viewed them through 4 layers (boxes) of 1cm. All geometry was fine, and the glass had a refraction depth of 20. It looked ok when I looked through only 2 layers. After hours and hours of searching. I found that even the default of 8 produces weird results (in my opinion, I have no idea if this is physically correct). I needed to put the depth on 7 and then my issue was solved. Is this to be expected?
I tried changing reflection depth of all materials as well. Raising it to insane values. Resetting my scene settings. Other than lowering refraction depth I couldn't get it to look 'good'.
I'm showing it in IPR but it's the same result in progressive and bucket.
Attached scene as well.
​Refraction depth at 8 or higher
Refraction depth at 7
​
I seem to remember that when dealing with multiple panes of glass, one behind another (sometimes 8 layers of glass or more the camera is looking through), I needed to crank up the refraction depth for things to look correct.
Now I was rendering an interior office with lots of glass and all of a sudden my chrome materials were completely black when I viewed them through 4 layers (boxes) of 1cm. All geometry was fine, and the glass had a refraction depth of 20. It looked ok when I looked through only 2 layers. After hours and hours of searching. I found that even the default of 8 produces weird results (in my opinion, I have no idea if this is physically correct). I needed to put the depth on 7 and then my issue was solved. Is this to be expected?
I tried changing reflection depth of all materials as well. Raising it to insane values. Resetting my scene settings. Other than lowering refraction depth I couldn't get it to look 'good'.
I'm showing it in IPR but it's the same result in progressive and bucket.
Attached scene as well.
​Refraction depth at 8 or higher
Refraction depth at 7
​
Comment