Problem: Buggy shadows in mental ray

[Cre8]

Did you try to boost up the shadowmap res?

Do it in the lights attributes. A size of 1024 is usually quite good.
Otherwise try raytracing shadows.

Is the snowmans head SUBD´s? I know they disappear sometimes when rendered in MR.

Do you really want both lights to cast shadows?

It seems from the pic that you dont need to use mental ray.

You´ll find that there wont really be a big difference between your MR render and a Software one.

Also make sure you set your render settings for Production!

Hope this helps

[LadyMedusa]

Did you try to boost up the shadowmap res?

Do it in the lights attributes. A size of 1024 is usually quite good.
Otherwise try raytracing shadows.Yay, raytrace shadows worked.

Is the snowmans head SUBD´s? I know they disappear sometimes when rendered in MR.Its made in Polygons. Alltho the problem is resolved, I would like to know why it dissapeared, just to understand the program better.

Do you really want both lights to cast shadows?

It seems from the pic that you dont need to use mental ray.

You´ll find that there wont really be a big difference between your MR render and a Software one.
I made two shadows so that the problem was more visible. I'm going to give him arms and try to make a house now, so I'll most probably change lighting

The shadows dissapear when I render it in Software, but mental ray is looking great now.

Thank you

[Cre8]

How much RAM does your machine have?

It could be that maya ran out of memory to create a shadow for the object.

Mental Ray chows your RAM!

Have you ever experimented with software lights that have decay switched on?

You can get some stunning results and more reliable renders, not to metion the rendering is much faster too.

Is this the first time you r working with MR?

Another solution if things dont render right or if your machine keeps crashing, render your picture with the maya batch renderer, a friend of mine had a huge scene to render and when he used the standard render the machine would crash.

With the batch renderer though it rendered like magic.

I think it´s cause the batch renderer manages your resources better.

Try it if you have future RAM problems, otherwise, upgrade.

Cheers!

[LadyMedusa]

Its my first time rendering whit shadows actually.

Decay? I dont even know what decay is, so I cannot really say I have experimented software and whit lighting

I got 512 RAM

[Jackdeth]

Goto the attirbute spread sheet and make sure cast shadow and visible in reflection/refraction is turned on.

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