Textures and alphas

Introduction to Maya - Rendering in Arnold

This course will look at the fundamentals of rendering in Arnold. We'll go through the different light types available, cameras, shaders, Arnold's render settings and finally how to split an image into render passes (AOV's), before we then reassemble it i

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# 1 16-11-2012 , 03:38 PM

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Join Date: Mar 2011

Location: UK

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Doing a project for Uni, I am trying to build up some foliage in my scene I am using a tif file with an alpha channel, I attached the texture to colour attr but keep this message 'Error: (Mayatomr.Output) : while defining texture "file20:tex": failed to open texture file'

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# 2 16-11-2012 , 06:39 PM

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MR doesn't like your texture, it may a tiff with an unsupported compression (LZW I think) or maybe just out right corrupted. Trying opening it in an image editor and writing it out again. And restart Maya because I think MR will still have issues unless you flush it.

- Genny
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# 3 16-11-2012 , 07:51 PM

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Join Date: Sep 2002

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I never have issues using targa (TGA). Try that.

Dave Baer
Professor of Digital Arts
Digital Media Arts College
Boca Raton, Florida
dbaer@dmac.edu

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# 4 17-11-2012 , 12:18 AM

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Join Date: Feb 2004

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Sigh... I wish they would just get rid of the tiff "format". Tiff's are really just a container, meaning the internal data in the file has many different standards (or none at all), which makes them a huge pain in production, especially when you're using multiple applications. Use either png or targa.

Imagination is more important than knowledge.

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# 5 17-11-2012 , 01:43 PM

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Location: London

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You will probably want to convert everything to a map texture for mental ray.
Can get scripts off highend3d.

You will want to work with exr and convert to this format.

FX supervisor - double negative

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