[Nuke-users] PointPositionPass - > 3DVectorFieldLUT MASKING

2013-08-01 Thread Vincent Langer 


i hate computers!

http://www.vincentlanger.com/3dLut_PointPositionMask.zip


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Re: [Nuke-users] Casting shadows

2013-08-01 Thread Mark Nettleton 
 I was using PrmanRender to generate my shadows, and this solution 
doesn't work with that node (the shadow disappears, as well as the 
creature). But with ScanlineRender, feeding the casting geom black RGBA 
works! Thanks Ivan.



On 08/01/2013 10:11 AM, Ivan Busquets wrote:

Hey Mark,

Have you tried feeding a black RGBA constant into your casting geometry?




On Thu, Aug 1, 2013 at 8:54 AM, Mark Nettleton > wrote:


I'm trying to render cast shadows in Nuke, from a creature
(alembic), onto some ground geom (alembic). I can get the creature
casting shadows, but the creature is visible, which I don't want.
I only want the shadow visible.

Is there any way to turn off the creature visibility to camera,
while keeping the cast shadows?

thanks
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Re: [Nuke-users] Casting shadows

2013-08-01 Thread Ivan Busquets 
Hey Mark,

Have you tried feeding a black RGBA constant into your casting geometry?




On Thu, Aug 1, 2013 at 8:54 AM, Mark Nettleton  wrote:

> I'm trying to render cast shadows in Nuke, from a creature (alembic), onto
> some ground geom (alembic). I can get the creature casting shadows, but the
> creature is visible, which I don't want. I only want the shadow visible.
>
> Is there any way to turn off the creature visibility to camera, while
> keeping the cast shadows?
>
> thanks
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Re: [Nuke-users] colospace node vs colorspace in the write node

2013-08-01 Thread Johannes Hezer 

Hi Deke,

thanks for the reply.

Cheers


On 08/01/2013 05:16 PM, Deke Kincaid wrote:
Yes, some of them are different.  Srgb clamps in the read node but 
does not clamp in with the colorspace node.  So if your artists 
accidentally rendered a gamma encoded file into an EXR file, then make 
sure you use the colorspace node.


-
Deke Kincaid
Creative Specialist
The Foundry
Mobile: (310) 883 4313
Tel: (310) 399 4555 - Fax: (310) 450 4516

The Foundry Visionmongers Ltd.
Registered in England and Wales No: 4642027


On Thu, Aug 1, 2013 at 3:03 PM, Johannes Hezer 
mailto:j.he...@studiorakete.de>> wrote:


Hey,

is there a difference in math between the colospace transforms in
the write node and the colospace node ?
For example:
I am having a linearized input and I set the write node to sRGB vs
I am having a linearized input and I set the write node to linar
with a Colorspace node (before the write) set to: in "linear" and
out "srgb" (all other params in the colospace node remain untouched)?

Cheers
Johannes

-- 
STUDIO RAKETE GmbH

Johannes Hezer, Compositing TD
Schomburgstr. 120
D - 22767 Hamburg

j.he...@studiorakete.de 
Tel:+49 (0)40 - 380 375 69 - 0

Fax:+49 (0)40 - 380 375 69 - 99


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--
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Johannes Hezer, Compositing TD
Schomburgstr. 120
D - 22767 Hamburg

j.he...@studiorakete.de
Tel:+49 (0)40 - 380 375 69 - 0
Fax:+49 (0)40 - 380 375 69 - 99

--
Pflichtangaben laut Handelsgesetzbuch und GmbH-Gesetz:

STUDIO RAKETE GmbH
Schomburgstr. 120 D - 22767 Hamburg

www.studiorakete.de / i...@studiorakete.de

Geschaeftsfuehrer: Jana Bohl / Hans-Martin Rickers

Die Gesellschaft ist eingetragen im Handelregister des
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USt.-ID Nr.: DE 245787817

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[Nuke-users] Casting shadows

2013-08-01 Thread Mark Nettleton 
I'm trying to render cast shadows in Nuke, from a creature (alembic), 
onto some ground geom (alembic). I can get the creature casting shadows, 
but the creature is visible, which I don't want. I only want the shadow 
visible.


Is there any way to turn off the creature visibility to camera, while 
keeping the cast shadows?


thanks
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Re: [Nuke-users] colospace node vs colorspace in the write node

2013-08-01 Thread Deke Kincaid 
Yes, some of them are different.  Srgb clamps in the read node but does not
clamp in with the colorspace node.  So if your artists accidentally
rendered a gamma encoded file into an EXR file, then make sure you use the
colorspace node.

-
Deke Kincaid
Creative Specialist
The Foundry
Mobile: (310) 883 4313
Tel: (310) 399 4555 - Fax: (310) 450 4516

The Foundry Visionmongers Ltd.
Registered in England and Wales No: 4642027


On Thu, Aug 1, 2013 at 3:03 PM, Johannes Hezer wrote:

> Hey,
>
> is there a difference in math between the colospace transforms in the
> write node and the colospace node ?
> For example:
> I am having a linearized input and I set the write node to sRGB vs
> I am having a linearized input and I set the write node to linar with a
> Colorspace node (before the write) set to: in "linear" and out "srgb" (all
> other params in the colospace node remain untouched)?
>
> Cheers
> Johannes
>
> --
> STUDIO RAKETE GmbH
> Johannes Hezer, Compositing TD
> Schomburgstr. 120
> D - 22767 Hamburg
>
> j.he...@studiorakete.de
> Tel:+49 (0)40 - 380 375 69 - 0
> Fax:+49 (0)40 - 380 375 69 - 99
>
> --**
> Pflichtangaben laut Handelsgesetzbuch und GmbH-Gesetz:
>
> STUDIO RAKETE GmbH
> Schomburgstr. 120 D - 22767 Hamburg
>
> www.studiorakete.de / i...@studiorakete.de
>
> Geschaeftsfuehrer: Jana Bohl / Hans-Martin Rickers
>
> Die Gesellschaft ist eingetragen im Handelregister des
> Amtsgerichts Hamburg unter der Nummer HR B 95660
> USt.-ID Nr.: DE 245787817
>
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> http://forums.thefoundry.co.**uk/ 
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Re: [Nuke-users] colospace node vs colorspace in the write node

2013-08-01 Thread Joe Laude 
I presume they'd be the same, but its easy to render both and then check the 
difference between the two, if any.

Johannes Hezer  wrote:
>Hey,
>
>is there a difference in math between the colospace transforms in the 
>write node and the colospace node ?
>For example:
>I am having a linearized input and I set the write node to sRGB vs
>I am having a linearized input and I set the write node to linar with a
>
>Colorspace node (before the write) set to: in "linear" and out "srgb" 
>(all other params in the colospace node remain untouched)?
>
>Cheers
>Johannes
>
>-- 
>STUDIO RAKETE GmbH
>Johannes Hezer, Compositing TD
>Schomburgstr. 120
>D - 22767 Hamburg
>
>j.he...@studiorakete.de
>Tel:+49 (0)40 - 380 375 69 - 0
>Fax:+49 (0)40 - 380 375 69 - 99
>
>--
>Pflichtangaben laut Handelsgesetzbuch und GmbH-Gesetz:
>
>STUDIO RAKETE GmbH
>Schomburgstr. 120 D - 22767 Hamburg
>
>www.studiorakete.de / i...@studiorakete.de
>
>Geschaeftsfuehrer: Jana Bohl / Hans-Martin Rickers
>
>Die Gesellschaft ist eingetragen im Handelregister des
>Amtsgerichts Hamburg unter der Nummer HR B 95660
>USt.-ID Nr.: DE 245787817
>
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[Nuke-users] colospace node vs colorspace in the write node

2013-08-01 Thread Johannes Hezer 

Hey,

is there a difference in math between the colospace transforms in the 
write node and the colospace node ?

For example:
I am having a linearized input and I set the write node to sRGB vs
I am having a linearized input and I set the write node to linar with a 
Colorspace node (before the write) set to: in "linear" and out "srgb" 
(all other params in the colospace node remain untouched)?


Cheers
Johannes

--
STUDIO RAKETE GmbH
Johannes Hezer, Compositing TD
Schomburgstr. 120
D - 22767 Hamburg

j.he...@studiorakete.de
Tel:+49 (0)40 - 380 375 69 - 0
Fax:+49 (0)40 - 380 375 69 - 99

--
Pflichtangaben laut Handelsgesetzbuch und GmbH-Gesetz:

STUDIO RAKETE GmbH
Schomburgstr. 120 D - 22767 Hamburg

www.studiorakete.de / i...@studiorakete.de

Geschaeftsfuehrer: Jana Bohl / Hans-Martin Rickers

Die Gesellschaft ist eingetragen im Handelregister des
Amtsgerichts Hamburg unter der Nummer HR B 95660
USt.-ID Nr.: DE 245787817

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Re: [Nuke-users] PointPositionPass - > 3DVectorFieldLUT MASKING

2013-08-01 Thread Falko Paeper 

Hey Vinny!

couldnt open that video file. Could you upload it again or just bring  
it upstairs ;).


lg falko

Zitat von Vincent Langer :


sorry for the confusion.

here is a little video that shows what the current small WIP python  
script is doing:


www.vincentlanger.com/3dLut_PointPositionMask.mp4


basically all it does is to write the current alpha value to the  
corresponding xyz point data directly into a .vf vectorfield textfile.


so you get some kind of fake fast projection.

cheers,
Vincent


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Tel. 0173 74 84 449
falko.pae...@filmakademie.de | falko-pae...@web.de
Skype: fpaeper
Karlsplatz 1 | 71638-Ludwigsburg


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[Nuke-users] PointPositionPass - > 3DVectorFieldLUT MASKING

2013-08-01 Thread Vincent Langer 

sorry for the confusion.

here is a little video that shows what the current small WIP python  
script is doing:


www.vincentlanger.com/3dLut_PointPositionMask.mp4


basically all it does is to write the current alpha value to the  
corresponding xyz point data directly into a .vf vectorfield textfile.


so you get some kind of fake fast projection.

cheers,
Vincent


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