Re: [Nuke-users] Why does Overlay clamp the image?

2015-01-28 Thread John Mangia
Screen is also a multiplicative operation, it's just inverted images multiplied together and re-inverted. On Wed, Jan 28, 2015 at 8:35 AM, Ron Ganbar ron...@gmail.com wrote: The math used in Nuke for Screen makes it inheritingly clamp (it doesn't really clamp, but can not produce colors

Re: [Nuke-users] Why does Overlay clamp the image?

2015-01-28 Thread Ron Ganbar
The math used in Nuke for Screen makes it inheritingly clamp (it doesn't really clamp, but can not produce colors brighter than 1). Ron Ganbar email: ron...@gmail.com tel: +44 (0)7968 007 309 [UK] +972 (0)54 255 9765 [Israel] url: http://ronganbar.wordpress.com/ On Wed, Jan 28, 2015 at

Re: [Nuke-users] Why does Overlay clamp the image?

2015-01-28 Thread Mads Lund
But i guess that leads back to the original question. I can't find a single reason (artistically or technically) why they changed this to clamp between 0-1. On Wed, Jan 28, 2015 at 6:03 PM, Ivan Busquets ivanbusqu...@gmail.com wrote: For more crude / unclamped versions of some merging

Re: [Nuke-users] Why does Overlay clamp the image?

2015-01-28 Thread Mads Hagbarth Lund
Ohh, interesting. Thanks a lot! Sendt fra min iPhone Den 28/01/2015 kl. 18.03 skrev Ivan Busquets ivanbusqu...@gmail.com: For more crude / unclamped versions of some merging operations (including overlay), you can also use the olde Merge node (as opposed to the default Merge2. Merge {

Re: [Nuke-users] Why does Overlay clamp the image?

2015-01-28 Thread Howard Jones
Maybe there should be a clamp option in 'merge3'. I think divide has similar issues. That would allow for backward compatibility to 'merge2'. Clamping for matte purposes is valid isn't it? Howard On 28 Jan 2015, at 7:53 pm, Deke Kincaid d...@thefoundry.co.uk wrote: Mads: When you say

Re: [Nuke-users] Undo function in 9.0v3 not working

2015-01-28 Thread John Mangia
I've been seeing this too on OS X at a place I'm working right now. Thought it was something internal. It's driving me crazy. On Wed, Jan 28, 2015 at 7:15 PM, adam jones adam@mac.com wrote: Hi guys I apologies if this has been posted prior I have just not come across it on the forum.

Re: [Nuke-users] Undo function in 9.0v3 not working

2015-01-28 Thread Brent Veal
Havent seen this issue on Windows On Wed, Jan 28, 2015 at 4:25 PM, John Mangia j...@johnmangia.com wrote: I've been seeing this too on OS X at a place I'm working right now. Thought it was something internal. It's driving me crazy. On Wed, Jan 28, 2015 at 7:15 PM, adam jones

Re: [Nuke-users] Deep reading Read node

2015-01-28 Thread matt estela
Is it reading the deep data though, or just the non-deep channels? That fooled us in nuke 8 ('hey look! regular reads can load mantra deep exrs! oh wait, where's all my deep data gone?'). On 29 January 2015 at 10:16, Michael Hodges mhod...@morganfalls.com wrote: If I’m not mistaken it looks

[Nuke-users] Undo function in 9.0v3 not working

2015-01-28 Thread adam jones
Hi guys I apologies if this has been posted prior I have just not come across it on the forum. I am using nuke 9.0v3 in a studio and seems that the undo and redo feature is not working in the release or is it something that in the studios pipeline might have broken this. There is no undo at

Re: [Nuke-users] Undo function in 9.0v3 not working

2015-01-28 Thread adam jones
ah we are on windows and have it also On Jan 29, 2015, at 11:44 AM, Brent Veal naslund.fan...@gmail.com wrote: Havent seen this issue on Windows On Wed, Jan 28, 2015 at 4:25 PM, John Mangia j...@johnmangia.com wrote: I've been seeing this too on OS X at a place I'm working right now.

Re: [Nuke-users] Why does Overlay clamp the image?

2015-01-28 Thread John Mangia
Looks like the nuke screen algorithm has a low pass to allow for values over 1 to comp more naturally. You can see the difference if you expose down. On Wed, Jan 28, 2015 at 10:37 AM, Mads Lund madshl...@gmail.com wrote: Ahh ok, so the Screen operation in the merge node does not just screen.

Re: [Nuke-users] Why does Overlay clamp the image?

2015-01-28 Thread Mads Lund
Ahh ok, so the Screen operation in the merge node does not just screen. Screen is the same as the Merge http://help.thefoundry.co.uk/nuke/9.0/content/reference_guide/merge_nodes/merge.html node, only with operation set to screen by default. It layers images together using the screen compositing

[Nuke-users] Deep reading Read node

2015-01-28 Thread Michael Hodges
If I’m not mistaken it looks like Nuke 9 seems to read my Arnold Deep EXRs with both “Read” and Deep Read” nodes. Is this a new functionality? Dan Michael Hodges Atlanta ___ Nuke-users mailing list Nuke-users@support.thefoundry.co.uk,

Re: [Nuke-users] Why does Overlay clamp the image?

2015-01-28 Thread Daniel Short
I wondered how the screen would need to be calculated differently since the invert function might get you some crazy values in float space. It makes sense that they changed it to give us a visually accurate result when a mathematical one would look like an error. On Wed, Jan 28, 2015 at 10:49 AM,

Re: [Nuke-users] Why does Overlay clamp the image?

2015-01-28 Thread Mads Hagbarth Lund
It's just bad with the overlay thing, as it is a pretty useful way to add grain and do dodge/burn effects. It works out of the box in Photoshop, Fusion and AfterEffects but you have to make your own overlay gizmo to make it work in Nuke. Den 28/01/2015 kl. 17.11 skrev Daniel Short

Re: [Nuke-users] Why does Overlay clamp the image?

2015-01-28 Thread Ron Ganbar
Build your own Overlay?... You know the math... Ron Ganbar email: ron...@gmail.com tel: +44 (0)7968 007 309 [UK] +972 (0)54 255 9765 [Israel] url: http://ronganbar.wordpress.com/ On Wed, Jan 28, 2015 at 6:34 PM, Mads Hagbarth Lund madshl...@gmail.com wrote: It's just bad with the

[Nuke-users] solve still cameras along with LIDAR data?

2015-01-28 Thread Jason Huang
Hi guys, I am trying to solve cameras of still images along with LIDAR data acquired. Ideally I would like to solve each still camera positions and lock in with the LIDAR data in terms of scale and accuracy, and then triangulate the positions of multiple HDR panos. I first created 6+ user tracks

Re: [Nuke-users] Why does Overlay clamp the image?

2015-01-28 Thread Deke Kincaid
Mads: When you say we changed it, did we at one time have a merge2 node that did not clamp and we changed the formula on the Merge2 node to then clamp? I suspect this predates The Foundry's involvement in Nuke (Merge2 node was introduced before 2007) and anyone who did make the modification has