Question

3d Max: Mental Ray + Render To Texture

Asked by: Jason210

3D Studio Max 7
I tried to "render to texture" a simple teapot in box with mental ray, and it took nearly an hour!!!!!!

The same scene renders in the viewport in less than 5 minutes.

Anyone know what is going on here?

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Asked On
2007-05-25 at 06:51:54ID22594776
Tags

render

,

texture

,

ray

,

mental

,

max

Topics

3D Graphics Software

,

3D-Studio 3D Graphics Software

Participating Experts
3
Points
0
Comments
10

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Answers

 

by: ThomasBallardITPosted on 2007-05-29 at 06:03:07ID: 19171879

What kind of computer are you using?  

 

by: Jason210Posted on 2007-05-29 at 06:26:57ID: 19172022

Nothing special - a 3.2 GHz Pentium (single core), 1.5 GB ram, Nvidia 6600 series card with 512MB ram.

Mental Ray is weird.

 

by: traxionPosted on 2007-06-19 at 11:37:37ID: 19318506

What type of texture were you using?  Any dynamic lighting / shadows / reflections?

 

by: Jason210Posted on 2007-06-19 at 12:07:36ID: 19318786

Have you tried render to texture with mental ray?

I had GI on, caustics off. I wasn't using a texture.

 

by: traxionPosted on 2007-06-19 at 14:41:25ID: 19320264

To be honest, I've never done a "Render to Texture" as the majority of my experience is with static non-animated models.  I've done some work with Photo-realism with reflections, etc. and you start taking huge performance hits.  I noticed this question had been open for some time so I thought I'd chip in.  I'm doing some reading now on Global Illumination with Mental Ray and it seems people are claiming slowness with GI.  I'll post more information as I find it.

 

by: traxionPosted on 2007-06-19 at 14:48:17ID: 19320313

What are your raytracing options?
http://simplycg.net/viewtopic.php?p=6699

 

by: Jason210Posted on 2007-06-19 at 14:56:54ID: 19320379

Thanks for your interest. Best thing to do is to try it.

The odd thing is, it renders just fine in a normal render, but with RTT, even the simplest object (a teapot in a box) seems to take an indefinite amount of time. Weird.

 

by: Jason210Posted on 2007-06-21 at 16:08:07ID: 19337763

I fixed it. For some reason, if radiosity is turned on, it slows down like time on does at the event horizon of a black hole. The solution is to turn off radiosity! Weird.

 

by: Computer101Posted on 2007-10-18 at 18:31:52ID: 20105934

PAQed with points refunded (500)

Computer101
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