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Problem with the diffuse lighting shader
#145324
08/02/07 19:10
08/02/07 19:10
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Joined: Mar 2006
Posts: 24
Atsu
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I'm trying to get the diffuse lighting shader from the introduction to shader programming by Taco Cohen to work as I want, but can't quite seem to get it. Problem is that the dynamic light seems to light the whole scene, but I would like it to be blocked by the models. In the demo level provided it seems to work fine with the sun, but I would like to use lights for this. How is this done? This is what I mean (ball acts as a dynamic light, but the whole box is lighted. I'd like the back to be shadowed as the real shadows fall): http://koti.mbnet.fi/ttb/gamestu.jpgDoes the light act as a sun and light still come from above, even if the light object is placed on to the ground level in WED? Or what's going on?
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Re: Problem with the diffuse lighting shader
[Re: Scorpion]
#145326
08/03/07 10:54
08/03/07 10:54
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Joined: Mar 2006
Posts: 2,758 Antwerp,Belgium
frazzle
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Joined: Mar 2006
Posts: 2,758
Antwerp,Belgium
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You can use dynamic lights together with a diffuse shader since the normal map shader from Guitar and co. did it so maybe try to infer it from their code ![](/ubbthreads/images/graemlins/wink.gif) Cheers Frazzle
Antec® Case Intel® X58 Chipset Intel® i7 975 Quad Core 8 GB RAM DDR3 SSD OCZ®-VERTEX2 3.5 x4 ; HD 600 GB NVIDIA® GeForce GTX 295 Memory 1795GB
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Re: Problem with the diffuse lighting shader
[Re: frazzle]
#145327
08/03/07 11:11
08/03/07 11:11
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Joined: Mar 2006
Posts: 24
Atsu
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Posts: 24
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Quote:
You can use dynamic lights together with a diffuse shader since the normal map shader from Guitar and co. did it so maybe try to infer it from their code ![](/ubbthreads/images/graemlins/wink.gif)
Yeah, already tried that but don't actually know where to start. Maybe I should just try to learn this stuff rather than experimenting till I go crazy ![](/ubbthreads/images/graemlins/wink.gif)
Still, I won't probably need this anyway, as I'll most likely bake the shadows and it's gonna have to do.
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Re: Problem with the diffuse lighting shader
[Re: Atsu]
#145328
08/03/07 11:42
08/03/07 11:42
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Joined: Mar 2006
Posts: 2,758 Antwerp,Belgium
frazzle
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Joined: Mar 2006
Posts: 2,758
Antwerp,Belgium
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Oke, but remember that when baking shadows you can expect a lower quality and pixelized/blurred edges ![](/ubbthreads/images/graemlins/wink.gif) Cheers Frazzle
Antec® Case Intel® X58 Chipset Intel® i7 975 Quad Core 8 GB RAM DDR3 SSD OCZ®-VERTEX2 3.5 x4 ; HD 600 GB NVIDIA® GeForce GTX 295 Memory 1795GB
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Re: Problem with the diffuse lighting shader
[Re: frazzle]
#145329
08/03/07 17:33
08/03/07 17:33
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Joined: Mar 2006
Posts: 2,503 SC, United States
xXxGuitar511
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Posts: 2,503
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well, if your into shaders, I can give you a little example on how to add simple lighting...
xXxGuitar511 - Programmer
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Re: Problem with the diffuse lighting shader
[Re: xXxGuitar511]
#145330
08/06/07 23:19
08/06/07 23:19
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Joined: Mar 2006
Posts: 24
Atsu
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Posts: 24
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Quote:
well, if your into shaders, I can give you a little example on how to add simple lighting...
Yeah, that would be great.
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Re: Problem with the diffuse lighting shader
[Re: Atsu]
#145331
08/07/07 05:55
08/07/07 05:55
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Joined: Mar 2006
Posts: 2,503 SC, United States
xXxGuitar511
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Posts: 2,503
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I've been very busy lately, if I find time, I'll drop a short example...
In the mean time, try to get a basic understanding of shader structure...
xXxGuitar511 - Programmer
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