- Fri Jul 24, 2009 5:23 pm
#304829
Thanks for all your comments. The diamond is maybe slightly overexposed. I could have reduced the intensity a bit. Good eye Max.
I have attached 3 images: my scene setup, a trade secret of mine, and the texture for the light panels
Here is my scene setup. You will notice the top, left and right panels are primarily used to control the reflection of the metal setting. Not so much refraction in the diamond occurs from these panels (maybe 10% of the diamond "sees" these panels from our viewpoint). The 4th front panel is behind the camera. This one is seen in ~80% of the diamond.
The second image shows a trick I always use to enhance the contrast in the table of the diamond. I use a relatively small black card that is in the path of the diamond's "table" reflection (the top surface of the diamond - referred to as "table") from the viewpoint of the camera. This does two things: 1. eliminates a bright reflection off the table which would make the refractions visible through the table muted, 2. it gives you some nice patterning/scintillation in the facets refraction. The other option is to have two panels in front of the diamond that are slightly apart. Make sure the gap between these two panels is in the table reflection path from the view of the camera. This technique also produces some nice patterning in the table.
This is the jpg save of an HDRI map I made of the panels. And yes, this is the actual size of the image I use (doesn't have to be high resolution).
Hope this helps you.
I have attached 3 images: my scene setup, a trade secret of mine, and the texture for the light panels
Here is my scene setup. You will notice the top, left and right panels are primarily used to control the reflection of the metal setting. Not so much refraction in the diamond occurs from these panels (maybe 10% of the diamond "sees" these panels from our viewpoint). The 4th front panel is behind the camera. This one is seen in ~80% of the diamond.
The second image shows a trick I always use to enhance the contrast in the table of the diamond. I use a relatively small black card that is in the path of the diamond's "table" reflection (the top surface of the diamond - referred to as "table") from the viewpoint of the camera. This does two things: 1. eliminates a bright reflection off the table which would make the refractions visible through the table muted, 2. it gives you some nice patterning/scintillation in the facets refraction. The other option is to have two panels in front of the diamond that are slightly apart. Make sure the gap between these two panels is in the table reflection path from the view of the camera. This technique also produces some nice patterning in the table.
This is the jpg save of an HDRI map I made of the panels. And yes, this is the actual size of the image I use (doesn't have to be high resolution).
Hope this helps you.