render png alpha on object

[Doeke Wartena]

I use a png with alpha as a texture.

This is the render:

https://dl.dropboxusercontent.com/u/17630770/temp/image.png

The alpha on the object is gone.

Now how can i get this correct in mental ray?

this is my current render tree:

https://dl.dropboxusercontent.com/u/17630770/temp/image-1.png

[Gareth Bell]

There's probably a more elegant solution but you can do this (see attached)

 

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From: softimag...@listproc.autodesk.com [softimag...@listproc.autodesk.com] on behalf of Doeke Wartena [clank...@gmail.com]
Sent: 24 May 2013 15:37
To: soft...@listproc.autodesk.com
Subject: render png alpha on object

[Rob Wuijster]

you have to pipe the alpha through, or it isn't picked up..

Rob

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[Doeke Wartena]

Ok almost there, i got strange white rectangles which have to do with png optimalisation i guess.

Can this be because i saved on photoshop in mac os x? I don't have photoshop on my pc.

Here is the latest texture.

This one also shows red stuff in it which shouldn't be there.

https://dl.dropboxusercontent.com/u/17630770/temp/venice_transparant3.png

2013/5/24 Rob Wuijster <ro...@casema.nl>