Photo-realism?

[roguenroll]

id say 99.9%, a slight bounce problem, when big ball hits other.

R

[Luddy]

Animation wise: the smaller ball stops too abruptly and seems to change speeds as it decelerates. The bigger balls collision with the other ball could follow through a little more. I guess it would depend on how much mass it has. Is it a Christmas ornament or lead ball?

The reflected glow on the bigger ball seems a bit too intense. It would probably be that bright if it was directly reflecting the sun. Otherwise I think it looks photorealistic.

[abeq]

Thanks for the comments guys this animation took 10 Days to render on my Dual p3 800. I'm going to add the fesnel effect and up the number of raytraced reflections while dimming the brightness of the overall relfections. I'll also adjust the speed of the smaller ball so it stops a little more smoothly.

[Ovi]

The HDRI is a little overused these days, but it looks quite good nevertheless.

The balls are rolling in a nonrealistic way. Tweak the animation some more.

The rendering time is way too high in my opinion. A couple of weeks ago, i did some test renderings with chromeballs and HDRI, and on my old 600mhz a frame only took about 1min (with Brazil).
You don't write what you use, but if you use 3ds max with some 3rd party renderer you should be able to get the same results much faster.

[fabman]

Yep!, the lightning looks good, but the animation it`s really unrealistic ( sorry... easy joke ), maybe you should use the physic engine of the software you're using.
The small ball stopts to fast, and the big one should bounce to a side if it doesn`t hit the other one in the mass center.

[abeq]

This animation was created in Lightwave 7.5. Each frame took about 45min on my dual p3-800. I don’t know if it is possible to get the render times down an still maintain the quality of each frame. I used full Monte Carlo Radiosity with 5x15 samples, ray traced shadows, ray traced transperancy and ray traced refractions. I also used Enhanced Low anti-aliasing and that is what slows the render time a lot because it does 5 passes of every pixel in image. In the end it all looks good though.

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