Thursday, 13 May 2010

Mental Ray comparison

I've been meaning to compare lightmap render times with mental ray for quite a while so here are the results for a 1024^2 lightmap. An example of the test scene can be seen in this post.  Direct and indirect light were calculated but I've only shown indirect light below.

Max 2010 / Mental Ray: 28 minutes
Final Gather set to 'High' preset with 1 diffuse bounce.
Lanczos filtering with 1 / 16 samples.
Logarithmic exposure control
Lit with mental ray sun / sky system

My app: 1 minute 30 seconds
3 bounces (total of  roughly 9000 rays per sample point)
 Lit with 1 directional light and HDR environment probe.

System specs.
Vista 64bit 
4gb ram
Intel Core 2 Duo E6850 @ 3.0ghz
Geforce 8800 gtx w/768mb ram

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