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Old 03-10-2003, 04:44 PM   #1
stephen.h1
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Default shadows

Hi,
Is there a general rule that the bigger your model, the higher the depth map resolution needs to be.

I have a massive model of an aircraft carrier and the Dmap is over 3ooo, and the shadows are still naf. I can go down to 512 if I scale the model down to about the size of my grid.

So bigger the model, higher the Dmap?

cheers
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Old 03-10-2003, 05:28 PM   #2
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pretty much. Dmap shadows are literally a big image that is spread over your scene for the shadows.
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Old 03-10-2003, 06:48 PM   #3
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3000 isnt THAT big. What's the largest map you can have? use that! try playing with the filter size aswell that should improve your shadows a bit
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Old 03-10-2003, 09:28 PM   #4
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3000, whaaaaat!?! Generally you want to keep dmap resolution as low as possible. It's a balance between mainly resolution and filter size. The goal of course is to get descent shadows as quickly as possible.

I got many lights on my Andrea Gail project. Currently I'm adding lights inside the cockpit. I've found out that a resolution of 64 and filter size of 2 is enough for these lights (frame resolution is 720x432)...
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Old 04-10-2003, 11:14 AM   #5
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But my frame rez is 3000 px, as im rendering out for print.
The shadows only improve the higher I have the Dmap. But I cant go any higher then 4000 as the computer cant handle it.
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Old 04-10-2003, 02:30 PM   #6
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have you played enough with Dmap silter size?

if that still doesnt gets you good shadows use raytracing...
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