Re: [Bf-committers] Is alpha within Blender totally broken?

2011-07-17 Thread Reuben Martin
On Saturday, July 16, 2011 02:37:57 PM Troy Sobotka wrote: So far, I've been experimenting with several files and uptake tools using Blender in conjunction with Nuke. I have yet to be able to find a pattern that delivers proper alpha channels.Perhaps someone here can shed some light on the

Re: [Bf-committers] Is alpha within Blender totally broken?

2011-07-17 Thread Mats Holmberg
You are on the right tracks, Troy. The alpha issue is something we've been pondering about at Studio Lumikuu also. If you composite within Blender there really are no issues, but, in my case, using After Effects gives very weird results. I've always used premultiplied png -files before, as

Re: [Bf-committers] Is alpha within Blender totally broken?

2011-07-17 Thread Αντώνης Ρυακιωτάκης
From my little experience with color management, these issues sometimes have todo with not being in the right color space(linear) when compositing. Blender's internal as far as I have seen are not always consistent in this matter. Personally I've looked into parts of the code where compositing was

Re: [Bf-committers] Is alpha within Blender totally broken?

2011-07-17 Thread Daniel Salazar - 3Developer.com
What format are you using to export, png? Daniel Salazar 3Developer.com 2011/7/17 Αντώνης Ρυακιωτάκης kal...@gmail.com: From my little experience with color management, these issues sometimes have todo with not being in the right color space(linear) when compositing. Blender's internal as

Re: [Bf-committers] Is alpha within Blender totally broken?

2011-07-17 Thread Αντώνης Ρυακιωτάκης
Some more info: As far as I know, in blender most image formats are written in color corrected space. OpenEXR is an exception as far as I remember. So maybe it's just a matter of non-conversion or erroneous conversion when writing the exr file? I've noticed similar behavior in other parts of

Re: [Bf-committers] Is alpha within Blender totally broken?

2011-07-17 Thread Αντώνης Ρυακιωτάκης
2011/7/17 Αντώνης Ρυακιωτάκης kal...@gmail.com: This comes from the face I meant 'fact', sorry! ___ Bf-committers mailing list Bf-committers@blender.org http://lists.blender.org/mailman/listinfo/bf-committers

Re: [Bf-committers] Is alpha within Blender totally broken?

2011-07-17 Thread Ton Roosendaal
Hi Troy, The issue you have is a combination of several issues; as others wrote as replies already, we have things reasonably OK work internally, but when it gets to colormanagement and file saving things get fuzzier. It's been noted on our todo wiki in many places that both

[Bf-committers] Is alpha within Blender totally broken?

2011-07-16 Thread Troy Sobotka
So far, I've been experimenting with several files and uptake tools using Blender in conjunction with Nuke. I have yet to be able to find a pattern that delivers proper alpha channels.Perhaps someone here can shed some light on the matter. It has been noted before that there has been some