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MrKepzie / Natron

Open-source compositing software. Node-graph based. Similar in functionalities to Adobe After Effects and Nuke by The Foundry.
www.natron.fr
GNU General Public License v2.0
1.49k stars 166 forks source link

Last Snapshot (02-21-2015) linux: Nodes can't load at startup... #492

Closed rcspam closed 9 years ago

rcspam commented 9 years ago

Hi, Last snapshot (02-21-2015) linux: Nodes can't load at startup... error while creating node_001

If i load a project, this happens for all nodes. Regards

MrKepzie commented 9 years ago

Linux distro ? 32/64 bit ? Have you touched anything to the installation ? You should have a Natron/lib/python3.4 folder and a Natron/Plugins/PySide folder.

rcspam commented 9 years ago

Linux 64 . The 02-21-2015 Snapshot has lib/python3.4 folder but no Plugins/PySide folder. I've installed the last from today, same issue: lib/python3.4 folder but no Plugins/PySide folder. Sorry, perhaps maybe it was an oversight.

2015-02-22 15:29 GMT+01:00 Alexandre Gauthier notifications@github.com:

Linux distro ? 32/64 bit ? Have you touched anything to the installation ? You should have a Natron/lib/python3.4 folder and a Natron/Plugins/PySide folder.

— Reply to this email directly or view it on GitHub https://github.com/MrKepzie/Natron/issues/492#issuecomment-75437873.

MrKepzie commented 9 years ago

Yes this is a bug in the build server, I’m fixing it right now

On 23 Feb 2015, at 12:07, rcspam notifications@github.com wrote:

Linux 64 . The 02-21-2015 Snapshot has lib/python3.4 folder but no Plugins/PySide folder. I've installed the last from today, same issue: lib/python3.4 folder but no Plugins/PySide folder. Sorry, perhaps maybe it was an oversight.

2015-02-22 15:29 GMT+01:00 Alexandre Gauthier notifications@github.com:

Linux distro ? 32/64 bit ? Have you touched anything to the installation ? You should have a Natron/lib/python3.4 folder and a Natron/Plugins/PySide folder.

— Reply to this email directly or view it on GitHub https://github.com/MrKepzie/Natron/issues/492#issuecomment-75437873.

— Reply to this email directly or view it on GitHub https://github.com/MrKepzie/Natron/issues/492#issuecomment-75523966.

MrKepzie commented 9 years ago

should be ok now

rcspam commented 9 years ago

You mean: "output=[ r, g, b, a];" ? See it in next Snapshot ?

On Monday, March 23, 2015 at 7:03:16 PM UTC+1, MrKepzie wrote:

I’ve added the possibility to the SeExpr node to output RGBA or Alpha only. When outputting alpha/RGBA a separate script has to be used. The default is RGB only

On 23 Mar 2015, at 18:11, Alessandro Dalla Fontana < alessandro....@gmail.com > wrote:

screen is: 1-(1-A)*(1-B): http://en.wikipedia.org/wiki/Blend_modes#Screen

for merge screen 2 input A-B

screen=1-(1-Cs)*(1-Cs2); screen

for merge screen 2 channel R-G

screen=1-(1-Cs[0])*(1-Cs[1]); screen

Il giorno lunedì 23 marzo 2015 17:31:24 UTC+1, Rc Spam ha scritto:

If i want work on alpha to have a correct alpha channel output for this image, i need to merge the red canal in a screen merge node.(4 node in Natron, 1 in Nuke) 'Screen' in Merge Node corresponds to operation :a+b-ab and it is that i want.

This image has a non acceptable alpha for me

https://lh5.googleusercontent.com/-OziCGdzr9Jg/VRA7qpOyiBI/AAAAAAAAAI4/fqiM7GqPNUs/s1600/S%C3%A9lection_001.png here is its alpha channel

https://lh5.googleusercontent.com/-9cGmnaD2bXs/VRA7yA70DyI/AAAAAAAAAJA/voN1KkBcGQk/s1600/S%C3%A9lection_002.png

So i need 3 shuffles nodes + 1 merge node (screen)

https://lh3.googleusercontent.com/-1hTE5APnYdw/VRA79n_QqdI/AAAAAAAAAJI/t1RVLbjGd5k/s1600/S%C3%A9lection_003.png

So i don't know how to simplify this 4 nodes to one.

This the reason i thought that the SeExpr could help me to simplify the nodegraph.

That's why a node like the Nuke ShuffleMerge Node might be a cool enhancement, or a math operations node or something like that, might do the trick as well.

I don't know to do that with the SeExpr Node... :(

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rcspam commented 9 years ago

No, there will be 2 separate expressions because SeExpr does not allow to output more than a 3-dimensional vector.

So there will be a RGB expression and a separate alpha expression. The latest should only output the alpha component, will the former should output the RGB (as usual), so it would be:

RGB expr:

color = [r, g, b] color

alpha expr:

alpha = As alpha

On 24 Mar 2015, at 09:56, Rc Spam rcspams@gmail.com wrote:

You mean: "output=[ r, g, b, a];" ? See it in next Snapshot ?

On Monday, March 23, 2015 at 7:03:16 PM UTC+1, MrKepzie wrote: I’ve added the possibility to the SeExpr node to output RGBA or Alpha only. When outputting alpha/RGBA a separate script has to be used. The default is RGB only

On 23 Mar 2015, at 18:11, Alessandro Dalla Fontana <alessandro....@gmail.com > wrote:

screen is: 1-(1-A)*(1-B): http://en.wikipedia.org/wiki/Blend_modes#Screen http://en.wikipedia.org/wiki/Blend_modes#Screen

for merge screen 2 input A-B

screen=1-(1-Cs)*(1-Cs2); screen

for merge screen 2 channel R-G

screen=1-(1-Cs[0])*(1-Cs[1]); screen

Il giorno lunedì 23 marzo 2015 17:31:24 UTC+1, Rc Spam ha scritto: If i want work on alpha to have a correct alpha channel output for this image, i need to merge the red canal in a screen merge node.(4 node in Natron, 1 in Nuke) 'Screen' in Merge Node corresponds to operation :a+b-ab and it is that i want.

This image has a non acceptable alpha for me https://lh5.googleusercontent.com/-OziCGdzr9Jg/VRA7qpOyiBI/AAAAAAAAAI4/fqiM7GqPNUs/s1600/S%C3%A9lection_001.png here is its alpha channel https://lh5.googleusercontent.com/-9cGmnaD2bXs/VRA7yA70DyI/AAAAAAAAAJA/voN1KkBcGQk/s1600/S%C3%A9lection_002.png So i need 3 shuffles nodes + 1 merge node (screen)

https://lh3.googleusercontent.com/-1hTE5APnYdw/VRA79n_QqdI/AAAAAAAAAJI/t1RVLbjGd5k/s1600/S%C3%A9lection_003.png So i don't know how to simplify this 4 nodes to one.

This the reason i thought that the SeExpr could help me to simplify the nodegraph.

That's why a node like the Nuke ShuffleMerge Node might be a cool enhancement, or a math operations node or something like that, might do the trick as well.

I don't know to do that with the SeExpr Node... :(

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rcspam commented 9 years ago

In this case how to apply an expr to As, i mean for example, as i ask before, redirect color channels to alpha channel etc... Sorry for my misunderstanding here.

On Tuesday, March 24, 2015 at 10:00:53 AM UTC+1, MrKepzie wrote:

No, there will be 2 separate expressions because SeExpr does not allow to output more than a 3-dimensional vector.

So there will be a RGB expression and a separate alpha expression. The latest should only output the alpha component, will the former should output the RGB (as usual), so it would be:

RGB expr:

color = [r, g, b] color

alpha expr:

alpha = As alpha

On 24 Mar 2015, at 09:56, Rc Spam <rcs...@gmail.com > wrote:

You mean: "output=[ r, g, b, a];" ? See it in next Snapshot ?

On Monday, March 23, 2015 at 7:03:16 PM UTC+1, MrKepzie wrote:

I’ve added the possibility to the SeExpr node to output RGBA or Alpha only. When outputting alpha/RGBA a separate script has to be used. The default is RGB only

On 23 Mar 2015, at 18:11, Alessandro Dalla Fontana < alessandro....@gmail.com> wrote:

screen is: 1-(1-A)*(1-B):
http://en.wikipedia.org/wiki/Blend_modes#Screen

for merge screen 2 input A-B

screen=1-(1-Cs)*(1-Cs2); screen

for merge screen 2 channel R-G

screen=1-(1-Cs[0])*(1-Cs[1]); screen

Il giorno lunedì 23 marzo 2015 17:31:24 UTC+1, Rc Spam ha scritto:

If i want work on alpha to have a correct alpha channel output for this image, i need to merge the red canal in a screen merge node.(4 node in Natron, 1 in Nuke) 'Screen' in Merge Node corresponds to operation :a+b-ab and it is that i want.

This image has a non acceptable alpha for me

https://lh5.googleusercontent.com/-OziCGdzr9Jg/VRA7qpOyiBI/AAAAAAAAAI4/fqiM7GqPNUs/s1600/S%C3%A9lection_001.png here is its alpha channel

https://lh5.googleusercontent.com/-9cGmnaD2bXs/VRA7yA70DyI/AAAAAAAAAJA/voN1KkBcGQk/s1600/S%C3%A9lection_002.png

So i need 3 shuffles nodes + 1 merge node (screen)

https://lh3.googleusercontent.com/-1hTE5APnYdw/VRA79n_QqdI/AAAAAAAAAJI/t1RVLbjGd5k/s1600/S%C3%A9lection_003.png

So i don't know how to simplify this 4 nodes to one.

This the reason i thought that the SeExpr could help me to simplify the nodegraph.

That's why a node like the Nuke ShuffleMerge Node might be a cool enhancement, or a math operations node or something like that, might do the trick as well.

I don't know to do that with the SeExpr Node... :(

You received this message because you are subscribed to the Google Groups "Natron" group. To unsubscribe from this group and stop receiving emails from it, send an email to Natron-VFX+...@googlegroups.com. To post to this group, send email to Natro...@googlegroups.com. Visit this group at http://groups.google.com/group/Natron-VFX. To view this discussion on the web visit https://groups.google.com/d/msgid/Natron-VFX/8a2c2d36-58b9-461e-b901-85d51d1ce874%40googlegroups.com https://groups.google.com/d/msgid/Natron-VFX/8a2c2d36-58b9-461e-b901-85d51d1ce874%40googlegroups.com?utm_medium=email&utm_source=footer . For more options, visit https://groups.google.com/d/optout.

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