View Full Version : dmap shadow problem

10 October 2005, 01:53 AM
hi, i am having some troubles with dmap shadows....
as u can see in this render, there are a lot brown-ish color near the gaps, is there any way that i can get rip of them?
i know they are shadows, but why are they here?

and here is a render with same scene but i render it in maxwell

10 October 2005, 07:29 AM
Can you be more specific, as in if you are using Software render or Mental Ray?, any info on any "make pretty" functions of Mental Ray you may be using. That will help the forum users to help you. D-map shadows act very differently depending on what renderer you are using.

10 October 2005, 05:20 PM
i am used mental ray to render the first render, the shader is just a lambert
here is how the scene set up and the setting of my lights

and here is the "make pretty "setting u refer to i suppose

i dont have GI nor FG turn on

10 October 2005, 12:57 AM
Try using the D map shadow settings in the Mental Ray tab of the lights attribute editor. The samples need to be very high (100 or so) to get rid of the noise in the shadow...then you MIGHT be able to get those cracks to shadow correctly by adjusting the softness and bias. Maya 7 has a new "detail shadow map" tab, that might work? A dome set up like that with D map shadows will just blur the shadow over those tiny cracks. They would most likely need to be ray-traced shadows, but then you have a bunch of shadow edges or very long render times. FG would give you look you want pretty easily.

CGTalk Moderation
10 October 2005, 12:57 AM
This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.