<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<blockquote
cite="mid:44AAD051-0120-485A-BA84-6C7DCEE38ABF@maxneupert.de"
type="cite">
<div>
<div>
<blockquote type="cite">
<div style="margin-top: 0px; margin-right: 0px;
margin-bottom: 0px; margin-left: 0px;"><span
style="font-family:'Helvetica'; font-size:medium;
color:rgba(0, 0, 0, 1.0);"><b>Von: </b></span><span
style="font-family:'Helvetica'; font-size:medium;">Jack
<<a moz-do-not-send="true"
href="mailto:jack@rybn.org">jack@rybn.org</a>><br>
</span></div>
<div style="margin-top: 0px; margin-right: 0px;
margin-bottom: 0px; margin-left: 0px;"><span
style="font-family:'Helvetica'; font-size:medium;
color:rgba(0, 0, 0, 1.0);"><b>Betreff: </b></span><span
style="font-family:'Helvetica'; font-size:medium;"><b>Aw:
[PD] Lighting glitch, [alpha]-object depth detection</b><br>
</span></div>
<div style="margin-top: 0px; margin-right: 0px;
margin-bottom: 0px; margin-left: 0px;"><span
style="font-family:'Helvetica'; font-size:medium;
color:rgba(0, 0, 0, 1.0);"><b>Datum: </b></span><span
style="font-family:'Helvetica'; font-size:medium;">17.
Januar 2013 21:57:10 MEZ<br>
</span></div>
<div style="margin-top: 0px; margin-right: 0px;
margin-bottom: 0px; margin-left: 0px;"><span
style="font-family:'Helvetica'; font-size:medium;
color:rgba(0, 0, 0, 1.0);"><b>An: </b></span><span
style="font-family:'Helvetica'; font-size:medium;"><a
moz-do-not-send="true" href="mailto:pd-list@iem.at">pd-list@iem.at</a><br>
</span></div>
<br>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
<div bgcolor="#FFFFFF" text="#000000">
<div class="moz-cite-prefix">Le 17/01/2013 10:18, Klemens
Schmiady a écrit :<br>
</div>
<blockquote cite="mid:50F7C1E8.5040101@uni-weimar.de"
type="cite">
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
<div class="moz-cite-prefix">Am 10.01.2013 18:38,
schrieb Jack:<br>
</div>
<blockquote cite="mid:50EEFC97.8040608@rybn.org"
type="cite">
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
<div class="moz-cite-prefix">Le 10/01/2013 16:22, Max
a écrit :<br>
</div>
<blockquote
cite="mid:5B508CA1-87D5-4855-81F5-72E6A95072BA@revolwear.com"
type="cite">
<pre wrap="">Am 10.01.2013 um 12:34 schrieb Jack <a moz-do-not-send="true" class="moz-txt-link-rfc2396E" href="mailto:jack@rybn.org"><jack@rybn.org></a>:
</pre>
<blockquote type="cite">
<pre wrap="">Le 10/01/2013 11:57, Klemens Schmiady a écrit :
</pre>
<blockquote type="cite">
<pre wrap="">Am 10.01.2013 11:40, schrieb Cyrille Henry:
</pre>
<blockquote type="cite">
<pre wrap="">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 :
</pre>
<blockquote type="cite">
<pre wrap="">Hey there,
the sphere in combination with the lighting leads to strange
artefacts as shown in the .jpg.
Looking for a solution.
</pre>
</blockquote>
</blockquote>
</blockquote>
<pre wrap="">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.
</pre>
</blockquote>
<pre wrap="">i don't think it's that. i simplified the patch a bit more:
</pre>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">with
GEM: ver: 0.93.3
GEM: compiled: Nov 10 2011
i have the same phenomenon here.</pre>
</blockquote>
<br>
Yep, you are right Max. I think it was a problem with
the near clipping plane of the frustum. But i was
wrong...<br>
Cyrille, your patch seems to have the same problem if
you put an alpha = 0.5, or i am wrong ?<br>
Here a patch that enable culling.<br>
Hoping it helps to solve _this_ problem.<br>
++<br>
<br>
Jack<br>
<br>
PS : dont't forget to start by rendering the light
before geos with an argument in [gemhead] ;)<br>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<pre wrap="">_______________________________________________
<a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="mailto:Pd-list@iem.at">Pd-list@iem.at</a> mailing list
UNSUBSCRIBE and account-management -> <a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://lists.puredata.info/listinfo/pd-list">http://lists.puredata.info/listinfo/pd-list</a>
</pre>
</blockquote>
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. <br>
The lightsource should be in the center of the patch
somehow.<br>
Can you please help me with that!<br>
<br>
Thanks,<br>
<br>
Klemens<br>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
<a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="mailto:Pd-list@iem.at">Pd-list@iem.at</a> mailing list
UNSUBSCRIBE and account-management -> <a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://lists.puredata.info/listinfo/pd-list">http://lists.puredata.info/listinfo/pd-list</a>
</pre>
</blockquote>
Hello Klemens,<br>
<br>
Can you tell us your configuration (OS, Graphic card, Pd
version and Gem version) ?<br>
Have you put an <u>argument</u> in your [gemhead] ? See
example (in Gem help) if you didn't put it.<br>
You have to render lights before the first sphere. And the
first sphere before the second sphere.<br>
In fact, in your patch you can't know what is render first
because you don't have this argument.<br>
See attached patch if it works for you.<br>
++<br>
<br>
Jack<br>
<br>
<br>
<br>
</div>
</blockquote>
</div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<meta http-equiv="Content-Type" content="text/html;
charset=ISO-8859-1">
<div>
<div>
<blockquote type="cite">_______________________________________________<br>
<a moz-do-not-send="true" href="mailto:Pd-list@iem.at">Pd-list@iem.at</a>
mailing list<br>
UNSUBSCRIBE and account-management -> <a
moz-do-not-send="true"
href="http://lists.puredata.info/listinfo/pd-list">http://lists.puredata.info/listinfo/pd-list</a><br>
</blockquote>
</div>
</div>
</blockquote>
<br>
I tried you patch I there are no visual differences between yours
and mine.<br>
<br>
I'm using win7, intel hd graphics 4000 card, pd 0.42.5 extended and
gem 0.93.3.<br>
<br>
Thanks,<br>
<br>
Klemens<br>
</body>
</html>