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Old 08-01-2011, 01:19 AM   #1
Nilla
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Default Free Friday Tutorial #3: Use Background Shader

Simply Maya - Use Background Shader on Vimeo


This week Jay explains how you can incorporate a 3d model onto a 2d background with Maya’s use background shader. The method shown here will allow you to cast shadows onto an image and make the model sit more realistically in a composite. We take look at alpha channels, isolating shadows in a render and how the appearance of shadows can be controlled within Maya using the shader node itself, as well as how to gain a higher level of control in post applications.

- Compositing 3D Models onto 2D Backgrounds
- Use Background Shader in Maya
- Alpha Channels
- Isolating Components within Renders
- Controlling Shadows

This tutorial was created to help you get started with our January Challenge - Before and After which is running this month on the forum, more entries are very welcome so join in. You don't need to be an expert and we'll help you along the way.
You can also download our free tutorial "Ambient Occlusion Render Layers" to learn how to composite individual renders together in Photoshop.
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Old 08-01-2011, 03:47 AM   #2
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Really good stuff Jay!
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"If I have seen further it is by standing on the shoulders of giants." Sir Isaac Newton, 1675
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Old 08-01-2011, 10:24 AM   #3
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Cheers Rick glad you like mate.

I was quite pleased with it too, all done on my laptop too!!

cheers
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Old 08-01-2011, 04:35 PM   #4
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Thanks for the FFT tutorial
awesome
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Old 10-01-2011, 02:08 PM   #5
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Hey Nilla!

Are you planning to put Free Friday tuts to free downloads dictionary?
I would like to download this video but can't find it ...

joey
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Old 11-01-2011, 08:33 AM   #6
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Sorry Joey free fridays will be streaming only We'll add some more free tutorials to the download section though over the next few weeks so we'll get a mix, I like to download video as well when I can.
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Old 11-01-2011, 12:46 PM   #7
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Found a Website which capcured the video. So i ve it now in HD (mp4)

Last edited by Joey81 : 11-01-2011 at 01:51 PM.
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Old 11-01-2011, 01:49 PM   #8
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great tutorial Jay i use to use a longer route to get them to work
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Old 11-01-2011, 09:14 PM   #9
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Ahh no worries murambi - its a pleasure to help

cheers
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Old 10-05-2012, 12:12 PM   #10
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I do not see the training video clip.
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Old 10-05-2012, 01:31 PM   #11
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Its at the beginning of this thread

J
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Old 25-04-2013, 11:03 AM   #12
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Hi Guys,

I am currently working on similar project. I applied ''Use Background" material, but I did not get any shadow in my render view... The alpha channel is completely white. Does anyone know what might be the problem?

There is shadow when I use other materials.
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Old 25-04-2013, 11:28 AM   #13
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did you look at the tutorial?

Jay
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Old 25-04-2013, 01:36 PM   #14
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Hi Jay,

Thank you for your reply. I did watch the tutorial before hand, but I use different lighting and build the ground out of poly cube to resemble a table.
Anyway, I redo everything again and follow the tutorial. I just change the lighting into directional light and create a new ground plane, it works now.

I'll just need to find out what I did wrong before. I guess there is something wrong with my poly cube.
Thanks!
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