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Real-time Global Illumination #374766
06/21/11 15:15
06/21/11 15:15
Joined: May 2009
Posts: 5,370
Caucasus
3run Offline OP
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3run  Offline OP
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Is there any examples similar to this in GS?
Quake 2 Real-time Global Illumination
I loved those dynamic shadows and shadows from flashlight.


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Re: Real-time Global Illumination [Re: 3run] #374772
06/21/11 16:02
06/21/11 16:02
Joined: Mar 2006
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Hummel Offline
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Hummel  Offline
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Foxfire implemented an indirect illumination but it was too slow for in-game usage.
I wanted to implement cascaded LPVs, the technique the Cry3 uses, but had too much trouble with GS related issues.
That was the point when I started to write my own DX10 framework for graphics programming...

Re: Real-time Global Illumination [Re: Hummel] #374773
06/21/11 16:07
06/21/11 16:07
Joined: May 2009
Posts: 5,370
Caucasus
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3run  Offline OP
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Your own DX10 framework for GS? blush If yes, will it be free or commercial? If commercial is there anyway to preorder now and get discount? grin


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Re: Real-time Global Illumination [Re: 3run] #374782
06/21/11 17:25
06/21/11 17:25
Joined: Mar 2006
Posts: 2,252
Hummel Offline
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Hummel  Offline
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Itīs a standalone tool. Has nothing to do with GS.

Re: Real-time Global Illumination [Re: Hummel] #374784
06/21/11 17:41
06/21/11 17:41
Joined: May 2009
Posts: 5,370
Caucasus
3run Offline OP
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Ohh.. thats sad.. So my question is still actual, is there any example of this? And is it even possible to make with GS?


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Re: Real-time Global Illumination [Re: 3run] #374788
06/21/11 18:16
06/21/11 18:16
Joined: Sep 2003
Posts: 6,861
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Superku Offline
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There once was a flashlight script with texture projection and normal mapping in an AUM (could be that it is by Foxfire, I don't know, the author's name is Joseph Duffey Jan). It's ps 2.0 and runs pretty fast, too.



EDIT: I'm not pretty sure what Global Illumination stands for but I don't know what you are really looking for, too, just the flashlight?

Last edited by Superku; 06/21/11 18:18.

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Re: Real-time Global Illumination [Re: Superku] #374792
06/21/11 18:27
06/21/11 18:27
Joined: Jul 2001
Posts: 6,904
H
HeelX Offline
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HeelX  Offline
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H

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Posts: 6,904
GI is kinda the sibling to shadow mapping. Global illumination algorithms take into account not only the light which comes directly from a light source (direct illumination -> shadowmapping!), but also subsequent cases in which light rays from the same source are reflected by other surfaces in the scene, whether reflective or non (indirect illumination).

Re: Real-time Global Illumination [Re: Superku] #374794
06/21/11 18:33
06/21/11 18:33
Joined: May 2009
Posts: 1,816
at my pc (duh)
darkinferno Offline
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darkinferno  Offline
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at my pc (duh)
i ran some tests to fake GI using the last shadeC beta, basically each light was two light sources, its certainly not great but it beats the direct lighting by miles ... as for speed, wasnt bad, plus my pc sucks so i assume it acceptable for most laugh



Re: Real-time Global Illumination [Re: Superku] #374795
06/21/11 18:33
06/21/11 18:33
Joined: May 2009
Posts: 5,370
Caucasus
3run Offline OP
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No, not just the flashlight, the example which is in the picture above made by Grafton I think, I got that one from AUM. But to be honest I don't really like it, shadows are terrible and not realistic... And there are no dynamic and static lights as well... But even if there were, it's not what I'm looking for. About Global Illuminations, in the video at "0.13" you can see how walls are illuminating by flashlight. When he points with flashlight to the right, you can see illumination on the left wall, same for the right side when he points to the left wall as well. This way lights, shadows and illumination itself are really looking awesome and very realistic! I hope this could be made with GS, cause as we can see from the video, it was made without any problems on old Quake's (2) engine.

Dark@: screens are really pretty laugh
The thing I don't really like is, that most of sweet stuff in GS is always faked... Yeah, at least now we have real HDR which isn't really a new...


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Re: Real-time Global Illumination [Re: 3run] #374798
06/21/11 18:50
06/21/11 18:50
Joined: May 2009
Posts: 1,816
at my pc (duh)
darkinferno Offline
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darkinferno  Offline
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at my pc (duh)
well it doesnt matter to the end-user what is faked or not, aslong as it works, realtime just sometimes makes it easier for the developer, unless making a dynamic world

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