*Von: *Jack <[email protected] <mailto:[email protected]>>
*Betreff: **Aw: [PD] Lighting glitch, [alpha]-object depth detection*
*Datum: *17. Januar 2013 21:57:10 MEZ
*An: *[email protected] <mailto:[email protected]>
Le 17/01/2013 10:18, Klemens Schmiady a écrit :
Am 10.01.2013 18:38, schrieb Jack:
Le 10/01/2013 16:22, Max a écrit :
Am 10.01.2013 um 12:34 schrieb Jack<[email protected]>:
Le 10/01/2013 11:57, Klemens Schmiady a écrit :
Am 10.01.2013 11:40, schrieb Cyrille Henry:
hello,
i can't reproduce this.
is there anything special to do in the patch?
cheers
c
Le 10/01/2013 11:06, Klemens Schmiady a écrit :
Hey there,
the sphere in combination with the lighting leads to strange
artefacts as shown in the .jpg.
Looking for a solution.
I think, this is because your viewpoint come too close to your geo (sphere).
Put a [max 2] (for example) on your Z axis for the viewpoint to avoid
collision.
i don't think it's that. i simplified the patch a bit more:
with
GEM: ver: 0.93.3
GEM: compiled: Nov 10 2011
i have the same phenomenon here.
Yep, you are right Max. I think it was a problem with the near
clipping plane of the frustum. But i was wrong...
Cyrille, your patch seems to have the same problem if you put an
alpha = 0.5, or i am wrong ?
Here a patch that enable culling.
Hoping it helps to solve _this_ problem.
++
Jack
PS : dont't forget to start by rendering the light before geos with
an argument in [gemhead] ;)
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I implemented your patch into what I'm working on at the moment but
the light goes all crazy and I don't know anything about openGL.
The lightsource should be in the center of the patch somehow.
Can you please help me with that!
Thanks,
Klemens
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Hello Klemens,
Can you tell us your configuration (OS, Graphic card, Pd version and
Gem version) ?
Have you put an _argument_ in your [gemhead] ? See example (in Gem
help) if you didn't put it.
You have to render lights before the first sphere. And the first
sphere before the second sphere.
In fact, in your patch you can't know what is render first because
you don't have this argument.
See attached patch if it works for you.
++
Jack
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I tried you patch I there are no visual differences between yours and mine.
I'm using win7, intel hd graphics 4000 card, pd 0.42.5 extended and gem
0.93.3.
Thanks,
Klemens
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