Any Render masterminds?!

Complex UV Layout in Maya

Over the last couple of years UV layout in Maya has changed for the better. In this course we're going to be taking a look at some of those changes as we UV map an entire character

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# 1 18-01-2006 , 02:46 PM

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Hey Guys,

I need help big time. Everyone on here is great and always helpful and really smart. I totally appreciate everyones help.

Whenever I render in mental ray, really black color (or in this example the background!) when rendered as a Tiff, PSD, or whatever (except jpeg which isnt what I want), it makes the background transparent instead of black like it is suppose to show.

Does anyone have any clue as to why? And how can I change it so it doesnt make the background or any of the black color transparent?!

Thanks so much guys!!

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# 2 18-01-2006 , 06:01 PM

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is there a backgrond plane there for example a sphere as if not there is no data there and it is transparent but shown black in render and will only save black in formats like jpeg
so if u dont have a plane/sphere there add one an see
if this is not it reply and i will try my best to help u

hope this helps

Now at SMU doing BSc 3D Computer Animation so its hard to get on here
My wire render tut https://forum.simplymaya.com/showthre...threadid=20973

Last edited by pbman; 18-01-2006 at 06:15 PM.

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# 3 18-01-2006 , 08:07 PM

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Thank you for your help, that did fix part of the problem, which is great, but a more complex example is here....

See where all the black areas would be on the car (even some areas that are not black) are transparent!! I have no idea why!

Any ideas on that?

Thanks again so much!

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# 4 18-01-2006 , 09:12 PM

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that is weird
not sure at the mo but will look into it for u
if not some 1 else here will probly know
good luck

Now at SMU doing BSc 3D Computer Animation so its hard to get on here
My wire render tut https://forum.simplymaya.com/showthre...threadid=20973

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# 5 18-01-2006 , 09:24 PM

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I haven't got Maya open right now, but have you checked (Render Globals maybe?) to see if there's some way to turn off transparency/alpha in your renders?

Liter is French for 'Gimme some ****ing cola before I break vous ****ing lips!"

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# 6 19-01-2006 , 04:13 PM

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i have started looking an found that this sometimes happens to me also but not all the time i still am not sure y though

Now at SMU doing BSc 3D Computer Animation so its hard to get on here
My wire render tut https://forum.simplymaya.com/showthre...threadid=20973

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# 7 20-01-2006 , 11:05 AM

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just save it as a bmp user added image

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# 8 20-01-2006 , 01:14 PM

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switch off the alpha channel in the render globals then render, that should do it

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# 9 21-01-2006 , 12:01 PM

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wat photoshop r u using??
as i have 7 and have no alpha channel and have transparent spots but i took it to school an opened it in CS and it magicaly had an alpha channel and there were no transparent spots
weird huh !?!?!?!? user added image

Now at SMU doing BSc 3D Computer Animation so its hard to get on here
My wire render tut https://forum.simplymaya.com/showthre...threadid=20973

Last edited by pbman; 21-01-2006 at 01:46 PM.

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# 10 21-01-2006 , 02:12 PM

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I mean render it in Maya with the alpha channel off.

If you want to sort it out in photoshop just use a black background and then flatten the image.

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# 11 21-01-2006 , 02:33 PM

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or just render it out as a .tga with 24 bits per pixel, it doesnt contain an alpha channel.

but simplest thing would be what gster said

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# 12 21-01-2006 , 03:15 PM

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done some resarch an asked a friend who is a compositing genius and found out that ver . 7.0 and below needs an update but he is not sure if this will fix so i will try later today and post up results

:attn: :headbang:

Now at SMU doing BSc 3D Computer Animation so its hard to get on here
My wire render tut https://forum.simplymaya.com/showthre...threadid=20973

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# 13 21-01-2006 , 04:14 PM

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JDigital
I fixed it
now im assuming ur running 7.0 only on windows then go here linky and download and install it works it fixed mine
now if ur using diff op system or version ie photoshop ver.6 go here google search its a google search the top 2 is wat u need for diff versions and op systems ie mac

hope this fixes it for u!!!!!!!!!!!!

:attn:

Now at SMU doing BSc 3D Computer Animation so its hard to get on here
My wire render tut https://forum.simplymaya.com/showthre...threadid=20973

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# 14 21-01-2006 , 10:18 PM

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Thank you guys SO much for all your suggestions and input. I tried various things that were asked so let me give results and tell you what I have found out so far...

-I went to render globals and turned off alpha channel and it was to no avail, still the same problem.

-I have photoshop CS on windows, so I am not sure what the deal is, it should work fine like you said pbman (by the way, thanks a TON for all your research.)

-I tried tiff, targa, and Photoshop outputs and they all give me the same result

-One thing I tried that makes me wonder, is I was using a car paint shader that comes with Mental ray. I changed the shader to a regular blinn shader with some slight modifications and walaa, it worked. I wonder why it makes the dark spots transparent on the car paint shader? Oh well I figured out a way to get around it.

Thank you guys so much for all of your help!!!!

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