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db&w Support Forum  |  exrTrader  |  exrTrader Bugs  |  OSX LW9 buffer saver alpha channel error... 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: OSX LW9 buffer saver alpha channel error...  (Read 2083 times)
jeremyhardin
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OSX LW9 buffer saver alpha channel error...
« on: October 04, 2006, 01:09:10 PM »

when using the .exr saver with LW's render buffer saver, the alpha comes out all wonky.  tested it with TGA32 and it doesn't save an alpha channel (even though the saver is 32bit.

Is there any way to detect that it's being used in the buffer saver, then have it to where the alpha is solid black, solid white, mirrors the rgb, or takes the rendered alpha and inputs it there?

Attached is an image with it's alpha 'all wonky' (just so you know what I mean).  Wink

[attachment deleted by admin]
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lightwolf
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Re: OSX LW9 buffer saver alpha channel error...
« Reply #1 on: October 04, 2006, 04:33:29 PM »

when using the .exr saver with LW's render buffer saver, the alpha comes out all wonky.  tested it with TGA32 and it doesn't save an alpha channel (even though the saver is 32bit.

Is there any way to detect that it's being used in the buffer saver, then have it to where the alpha is solid black, solid white, mirrors the rgb, or takes the rendered alpha and inputs it there?
No, there isn't. The image saver knows nothing of the context it is being called in.

However, I was going to do some more work on the code of the normal loader and saver anyhow, so I'll look out for the issue. What if you set the OpenEXR settings to RGB only in the "OpenEXR Settings" scene master plugin?

Cheers,
Mike
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