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Ray-traced Spheres by ~Axiem:iconAxiem:

Categories Digital Art > 3-Dimensional Art > Objects > Basic Shapes

©2006-2009 ~Axiem
:iconaxiem:

Artist's Comments

Our assignment was to generate 9 spheres in a grid, each of a different material (the various values and coefficients for the materials were given to us). There were to be four lights: one white, and one of each of the primary colors (red, green, blue). After fiddling with positions for a long time, this is what I eventually got. The problem with ray-tracing is that each iteration takes a long time to render, especially when it's OpenGL, which likes rendering things multiple times before it considers itself done. Still, it works, and it looks kinda nice. Admittedly, it's just nine spheres, but it's pretty nifty.

This was generated with a ray-tracer written in C, using OpenGL for graphics.

The spheres, from the upper-left and working right, row by row, are Black Plastic, Brass, Bronze, Chrome, Copper, Gold, Pewter, Silver, and finally Polished Silver.

Comments


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:icondragonessbahamut:
~DragonessBahamut May 7, 2006, 10:34:15 AM
I think it looks kinda weird since they're just kinda floating in space but it is kinda pretty. And you do have to use your imagination to accept that they're all made out of different materials. *^_^*;;
:icondragonessbahamut:
~DragonessBahamut May 7, 2006, 10:35:12 AM
Hm, I think putting them on a lighter background would probably make it look prettier, since they're all kind of darkish in color. Either that or making the lights brighter..
:iconaxiem:
~Axiem May 7, 2006, 10:40:45 AM
He specified the brightness of the lights, so it's not something I could change. As for the background, yeah, I probably could have made it a bit brighter than off-black. The main thing is that I didn't really know what color to make it, and I'm not sure how much it would add. The focus of the picture, after all, is the nine balls floating in space! :D
:iconaxiem:
~Axiem May 7, 2006, 10:42:54 AM
Well, it's not going to be uberrealistic. The metals, actually, aren't metallic enough, as metals reflect light differently, and require a different relfection algorithm to draw. I didn't use that algorithm.

What's interesting is that, from a computer science perspective, the only difference in a lot of materials is just a lot of coefficients relating to how it reflects light.
:icondragonessbahamut:
~DragonessBahamut May 9, 2006, 12:25:12 PM
Yes, and putting them on a lighter background would make them a lot easier to see. *^.^*;;
:iconaoikagetora:
=aoikagetora Dec 20, 2006, 1:40:49 PM
They look pretty cool. ^^ I agree with Joanne, it should've been on a light background, but aside from that I like it. =3

--
"Works of art are created by those who are prepared to go to the limit." - Hayao Miyazaki
--Icon by *SoloPlush
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May 6, 2006
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