www.kraytracing.com

Sorry if this has been asked before, but what buffers (alpha, diffuse, whatever) are supported in the latest release and how do I know their commands? Alpha is "needbuffers 3" if I am not wrong. But are there others?
Again, thanks in advance.

needbuffers -1; exports all buffers available afaik

Hey thanks AcidArrow.
I hope there will be a good and up-to-date manual soon.

The most useful commands (such as the buffer export) will be included in the GUI, at least that's the plan.

hmm it works, but any idea why the transparency is not taken into account?

is there a header for that?

Matt -

Since im no expert in postprocessing/afterFX/razor or whatever, Is that what we want or will transparency in alpha cause problems in some situations? Do we need to have them both,ability to render out alphas with and without trasnparency taken into account? Im interested to hear what the needs are and why.

Hmm thanks Silver -

I meant the reflection seems to be lost on the main windopane, (it seems to be reflecting the palm tree but not the environment)

I faked it by placing a solid layer in AFX though, looks like the transparency is OK up to 2 or 4 recursions, but if there is more glass behind it is does not compute (I need to test this, not 100% this is correct)

Also, (lastly) is it possible to have the alpha channel already included in the file itself? ( I think it gives a cleaner alpha than a separate file (or Im not sure how to do this correctly in PS)

Thanks a million !

Matt -

Silverlw wrote:Do we need to have them both,ability to render out alphas with and without trasnparency taken into account? Im interested to hear what the needs are and why.

Yes, yes, yes. Definitely need both.

You can't use Kray to render up, say, a tree and use it in other renders as a flat plane with the alpha map as a clip because the alpha doesn't show the leaves correctly (see my recent post in the bugs section). Also, if transparency is accounted for, it makes life sooo much easier if you want to drop a background in behind the scene in post - for instance when you're inside a room with glass in the windows, or if there is any other transparent object through which the backdrop would be visible.

Also, having both means you can combine them in situations where it's needed. Right now, we don't have that capability.

Am I sounding worked up enough about this?

Phil

Will the new release combine the alpha in the TGA file like most appz?

This was not in the plan. But you can output PNG with alpha already - use http://www.kraytracing.com/wiki/index.p ... at_pnga.3B

Thanks. I tried needbuffers -1; . Is there a way to output it in single file tga or png? Or its really output to two separate files by kray?
When I use outputformat pnga; the file doesn't contain alpha.

Please take a look at Kray Wiki for an answer to your question:
http://www.kraytracing.com/wiki/index.p ... eedbuffers

This code doesn't work for me outputformat pnga;
Only rgb output is in png. No alpha layer.

Yea seems to be a bug.

jure wrote:Yea seems to be a bug.

Ok thanks. so its just not me.