Maya depth map shadows are rendered wrong
Hi there. I am (still) a novice and trying get to grips with Maya. Sometimes I hit a snag but tend to overcome it after some googling but this one is sticking...
I am following a lighting tutorial but after playing around, this happens when I use Depth Map Shadows. I have deleted all my lights and reset Mental Ray to both preview and production but I still get the "scetch" effect. I have tried diffirent settings in both my Penumbra and Dropoff settings. http://img13.imageshack.us/img13/663...pthmapshad.jpg When I use Ray Trace shadows, it works. (Just a quick render to show it does.) http://img39.imageshack.us/img39/327...wsraytrace.jpg I hope someone can help, its really anoying and frustrating atm, but I want to puch through but dont want to start all over, I think it might be something in the level, not the lights... Thank you in advance! Software Windows XP SP3 Maya 8.0 System Specs Intel E8500 Geforce GTX 285 (Driver ver : 180.87) 4GB System Ram |
With depth map shadows you have to understand that fiddling with the resolution, filtersize or bias of the shadow can give strange results when rendering.
I don't remember exactly in what way it connects to each other since i haven't done depth map shadows in a while. But googling or pressing F1 will help you i think, it did once for me Good luck |
Hi,
I believe like mastone said it's down to filter size and map size. With depth map shadows the light basically projects a texture into the scene and creates a shadow map based on it. If the texture is too small then you will get stepped edges, unless you use a larger filter size (which will blur the stepped edges together, simulating soft shadows). If you want sharp shadows you need to use a larger map size but with a lower filter. So small map + high filter = soft shadow edges. Large maps = sharper shadows. Hope that helps, cheers gubar |
You guys are but struggling to get the shadows to render correctly...
Thanks guys!!! |
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