Re: Is it possible to use an image to illuminate a scene?

[Ville Tirronen]

So it luminates scene with RS GI?
Would that work also with animation??

Ville


> I have attached a shader I use in my GI scenes that allows you to load any
> RGB image map (jpg, bmp, psd, etc) and use it as an illumination map. A bit
> of an hdri cheat but you can get some reasonable results.
>
> I have also attached a scope curve object in the shader to control the
> intensity of the illumination, so have a play with this and see what you get
> in GI renders.
>
> You can also add a colour curve to the shader as well to control the
> intensity of the illumination colours.  If for example there is too much
> blue you can bring the blue curve down a touch.
>
> Kind regards,
>
> Jason
>
>

Re: Is it possible to use an image to illuminate a scene?

[Jean-Sebastien Perron]

Thank you very much Jason. I will try it later : in the next week.
Will get back to you.

Jean-Sebastien Perron
www.NeuroWorld.ws

On 11-01-17 04:45 PM, j...@pixelperfect.co.uk wrote:

Hi Jean-Sebastien,

You may want to try this if you haven't already, as an alternative to using
HDRI images.

I have attached a shader I use in my GI scenes that allows you to load any
RGB image map (jpg, bmp, psd, etc) and use it as an illumination map. A bit
of an hdri cheat but you can get some reasonable results.

I have also attached a scope curve object in the shader to control the
intensity of the illumination, so have a play with this and see what you get
in GI renders.

You can also add a colour curve to the shader as well to control the
intensity of the illumination colours.  If for example there is too much
blue you can bring the blue curve down a touch.

Kind regards,

Jason



-Original Message-
From: owner-l...@light.realsoft3d.com
[mailto:owner-l...@light.realsoft3d.com] On Behalf Of Jean-Sebastien Perron
Sent: Monday, January 17, 2011 2:59 AM
To: user-list@light.realsoft3d.com
Subject: Is it possible to use an image to illuminate a scene?

I would like to use an HDRI image of a 360 landscape to illuminate my scene.
How do I do that without opening my shading language books?

By the way, I have a project to realize for a company with RS.
It would not be wise to use CombadZ at this stage for such an important
project with a short dead-line.
Will not be able to show it for a long time (until the idea of the client is
protected by a patent).
It involve visualization and demonstration of a product abilities not yet
created.
The video produced will be used for demonstration and later for promotion.

Jean-Sebastien Perron
www.NeuroWorld.ws

RE: Is it possible to use an image to illuminate a scene?

[Arjo Rozendaal]

Hi Jean,

Lighting a scene with an HDRI will be very hard in RS.
As I understand you need to create animations.
Image based lighting needs GI. And the current GI system is very slow in
RS...
I'm even not sure if you can get a flicker free animation.

Arjo.

> -Oorspronkelijk bericht-
> Van: owner-l...@light.realsoft3d.com [mailto:owner-
> l...@light.realsoft3d.com] Namens Jean-Sebastien Perron
> Verzonden: maandag 17 januari 2011 3:59
> Aan: user-list@light.realsoft3d.com
> Onderwerp: Is it possible to use an image to illuminate a scene?
> 
> I would like to use an HDRI image of a 360 landscape to illuminate my
> scene.
> How do I do that without opening my shading language books?
> 
> By the way, I have a project to realize for a company with RS.
> It would not be wise to use CombadZ at this stage for such an important
> project with a short dead-line.
> Will not be able to show it for a long time (until the idea of the
> client is protected by a patent).
> It involve visualization and demonstration of a product abilities not
> yet created.
> The video produced will be used for demonstration and later for
> promotion.
> 
> Jean-Sebastien Perron
> www.NeuroWorld.ws

Re: Is it possible to use an image to illuminate a scene?

[tijai]

Hello Jean,

i remember ... some time ago... there was a HDRI plugin for Realsoft3d

from realsoft news:

*HDRI image import plugin released*

Henrik Nyqvist has written a plugin which reads HDRI images into 
Realsoft 3D. He kindly made the plugin available to the user community 
free of charge. Available for Windows, Linux and IRIX.


and i found this...

http://rs-forum.the-final.com/viewtopic.php?f=11&t=37&start=30 




best regards

tijai



Am 17.01.2011 03:59, schrieb Jean-Sebastien Perron:
I would like to use an HDRI image of a 360 landscape to illuminate my 
scene.

How do I do that without opening my shading language books?

By the way, I have a project to realize for a company with RS.
It would not be wise to use CombadZ at this stage for such an 
important project with a short dead-line.
Will not be able to show it for a long time (until the idea of the 
client is protected by a patent).
It involve visualization and demonstration of a product abilities not 
yet created.
The video produced will be used for demonstration and later for 
promotion.


Jean-Sebastien Perron
www.NeuroWorld.ws