opengl-gamedev-l : Messages : 21149-21178 of 23867

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21149	WHERE TO FIND OPENGL INFORMATION - (Bi-weekly posting) The Official OpenGL Site - News, downloads, tutorials, books & links:- http://www.opengl.org/ The...	Dominic Curran dcurran@...	Sep 1, 2002 7:34 am
21150	Have just been going through my extension querying code to try and clean things and have noticed something slightly strange happening (which may be entirely...	Paul Crowder paul.crowder4@...	Sep 1, 2002 8:38 pm
21151	I'd look pretty carefully at you string handling code. By my count, you are somewhere around 240 characters in what you are getting back. I expect that you may...	Evan Hart ehart@...	Sep 1, 2002 10:54 pm
21152	RE: bizarre glGetString happeningsWell, it looks as though the entire extension string is in memory, its just DevStudio refusing to display past 240 characters...	Paul Crowder paul.crowder4@...	Sep 2, 2002 12:04 am
21153	"Pat Brown" <pbrown@...> wrote in message news:F001.004C45CF.20020830111330@.... ... We have the latest drivers from the NVIDIA homepage...	Dylan Cuthbert dylan@...	Sep 2, 2002 1:49 am
21154	... Well, on a slight tangent, you have to remember that IEEE floating point consists of 1 sign bit, 8 bit exponent and 23 bit mantissa... so for a value...	Leath Muller leath.muller@...	Sep 2, 2002 3:52 am
21155	RE: bizarre glGetString happeningsI believe the OpenGL extension string depends on the pixelformat you use.... That could be the source of your problems... ...	Chris Haarmeijer c.haarmeijer@...	Sep 2, 2002 8:49 am
21156	You are forgetting that the exponent is biased, and therefore can be negative. -Evan ... Sent: Monday, September 02, 2002 12:38 AM To: Multiple recipients of...	Evan Hart ehart@...	Sep 2, 2002 3:07 pm
21157	i'm rendering a large bunch of GL_POINTS, with glVertexPointer and glTexCoordPointer, on a geforce3 board, agp4x. i allocate memory with...	Carsten Dachsbacher mailinglist@...	Sep 2, 2002 6:39 pm
21158	Hi, I noticed a very interesting link at the ogl website which features a lot of source from small games. http://igj.sourceforge.net/index.html Unfortunately...	Dimi christop@...	Sep 3, 2002 7:14 am
21159	... Well, since the high order bit of the mantissa is always 1 (except for the special case of the number zero), it's not stored - so in fact, there are...	Stephen J Baker sjbaker@...	Sep 3, 2002 1:07 pm
21160	Could the depth value be modified in a pixel shader ? I suppose that would mess up fogging but that could itself be adjusted... ... FAQ and OpenGL Resources...	pocketmoon@...	Sep 3, 2002 3:57 pm
21161	... I believe OpenGL 2.0's fragment shader allows it - but I don't think the nVidia Cg fragment shaders do. (Someone please correct me if I'm wrong!) But,...	Stephen J Baker sjbaker@...	Sep 3, 2002 4:50 pm
21162	OK, I have what I hope is a really simple question, and a much more complex one. Please bear with me as I am an OGL newbie. I have implemented a simple OGL...	Matthew Riches matthew.riches@...	Sep 3, 2002 4:57 pm
21163	... IIRC NV30 fragment shaders do allow you to set the Z value. In the range 0 to 1. ... FAQ and OpenGL Resources at: ...	Richard Nutman RichardN@...	Sep 3, 2002 4:58 pm
21164	When you draw the line, you do this; glTranslatef(-2.5f, 1.5f, 6.0f); Which negates the Z translation of -6.0f units you previously did. So it looks like...	Richard Nutman RichardN@...	Sep 3, 2002 5:11 pm
21165	Hmm, well you can always download a project's CVS backup as a last resort: http://cvs.sourceforge.net/cvstarballs/igj-cvsroot.tar.gz - Brian ... FAQ and OpenGL...	Brian Chapman bchapman@...	Sep 3, 2002 5:47 pm
21166	would it preclude early-out Z testing (by the hardware ?) We would just be applying a curve to the Z range - all the Z values would still be in order. ... To:...	Rob James pocketmoon@...	Sep 3, 2002 7:25 pm
21167	... Yes, while true in this case, this is certainly not true in general. You are assuming that the hw / driver knows exactly what you are doing, and that the...	Cem Cebenoyan CCebenoyan@...	Sep 3, 2002 9:58 pm
21168	... Yes, but if the entire scene IS rendered with the custom fragment shaders, then you can do whatever you like with the z values... you just have to make...	Leath Muller leath.muller@...	Sep 4, 2002 1:20 am
21169	... Cg is supposed to support the NV30 fragment path that allows this... Leathal. ... FAQ and OpenGL Resources at: ...	Leath Muller leath.muller@...	Sep 4, 2002 1:26 am
21170	Use ATI Cards they have up to 32bit z-buffer. ... Muller Sent: 4. september 2002 04:08 To: Multiple recipients of list OPENGL-GAMEDEV-L functions) ... Cg is...	Uffe Hammer uh@...	Sep 4, 2002 10:07 am
21171	Hi, A month or two ago, there was some discussion on this list about my OpenGL extension database (at http://www.delphi3d.net/hardware). Some people expressed...	Tom Nuydens t.nuydens@...	Sep 4, 2002 10:18 am
21172	Apologies if these are common knowledge. I don't have any of the books, just a collection of tutorials that miss over some fundamentals :( 1) my screen...	matthew.riches@...	Sep 4, 2002 11:57 am
21173	... (...and crappy Linux drivers...) :-( ... Steve Baker (817)619-2657 (Vox/Vox-Mail) L3Com/Link Simulation & Training (817)619-2466...	Stephen J Baker sjbaker@...	Sep 4, 2002 4:54 pm
21174	... Well, if your changes to the Z values are going to have an effect, they must change the order - or there would be no point in doing them! What they do is...	Stephen J Baker sjbaker@...	Sep 4, 2002 4:56 pm
21175	... You should read the NV30 OpenGL extension specs, specifically NV_fragment_program. In the "issues" section it is even mused if depth-modifying fprogs...	Bert Freudenberg bert@...	Sep 4, 2002 11:01 pm
21176	... Did you try the links at opengl.org? http://www.opengl.org/developers/documentation/ Also, the original Red Book is on the web: ...	Bert Freudenberg bert@...	Sep 4, 2002 11:19 pm
21177	... Well, that really depends on which driver you are using doesn't it? I assure you, my ATI drivers are working just great. -- Jon Trulson work:...	Jon Trulson jon@...	Sep 4, 2002 11:27 pm
21178	Thanks, I will do that when I get time to sit down and tinker some more. Initially I am trying to develop a 2d - iso map editor, I just chose OGL as a language...	Matthew Riches matthew.riches@...	Sep 4, 2002 11:38 pm

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