Development Journal of a Raytracer - Comments

Nicolas: To Do in March

nospam@example.com (Nicolas) — Wed, 10 Mar 2010 07:35:11 +0100

¡Hola! , Gracias Nicolas

counterlord: Channel Material - 27

nospam@example.com (counterlord) — Wed, 10 Mar 2010 04:29:51 +0100

Hello, can anyone tell me which is the best counter strike guide ? ...i found this one : http://www.downloadzdb.com/Counter_Strike_Best_Guide What do you rise up with primitively it ? Thanx in advance Sorry for my bad english :s

MichaellaS: Java and Mobile 3D

nospam@example.com (MichaellaS) — Tue, 21 Jul 2009 21:50:14 +0200

tks for the effort you put in here I appreciate it!

Josef: Conversion to Visual Studio 2008 (from Visual C++ 6)

nospam@example.com (Josef) — Thu, 04 Jun 2009 21:20:03 +0200

There are some things I learned which would have been useful before. The biggest hassle is a bug in VS2008 which is still not fixed in SP1. When the compiler encounters functions it can't find it sometimes breaks the pdb-file and all further compiles fail. You have to clean or rebuild the project. That problem cost me a lot of time, as it always only reports one or two of these cases and then can no longer compile. The main reason it happened to me was, that GCC and stlport seem to have much more dependecies in their headers, so often one dragged in others. VS2008 doesn't do this, so I had quite some problems. What I learned is, that you should clean the project and then build one cpp at a time. It seems that then the pdb rarely breaks, even if it hits a condition which would otherwise cause that bug. A second bug which is fixed in SP1 is, that the incremental linker tends to crash when a lib is written and at the same time used (happens when you don't use the project dependencies). Then it pops open a dialog and the build stops. Unattended builds are no longer possible with this bug. Something not directly related is the ability to use parallel builds. VS2008 can build multiple non dependent projects, one per core (like VS2005 also could). That is the reason why it can make sense to not use the project dependencies. But VS2008 can also build in parallel in one project, which depending on the machine can speed up compilations quite a bit. In my case I have a dual processor quad core system (no hyper threading), so 8 cores and building 8 files at once makes the build fly through especially for large projects (my biggest module has 155000 lines counting everything, even empty lines). The settings and conditions are not easy to find: http://msdn.microsoft.com/en-us/library/bb385193.aspx It boils down to setting /MP in the C++-compiler, switching off the precompiled headers and minimal rebuild (in the tab "Code Generation").

Malcolm: Conversion to Visual Studio 2008 (from Visual C++ 6)

nospam@example.com (Malcolm) — Wed, 03 Jun 2009 21:01:52 +0200

Congrats on your C++ conversion! I am also in the midst of converting (a lot) of VC6 code to VC2008. Can you give me any pointers on how to do it? If you have the time, could you please email me with any useful advice that you wish someone told you when you started your own conversion? Thank you.

Josef: Waves - Animated

nospam@example.com (Josef) — Sat, 05 Jul 2008 18:19:11 +0200

Comments closed to spammers.

Josef Meixner: Optimisation for the OpenGL part and a nice book

nospam@example.com (Josef Meixner) — Sun, 13 Apr 2008 21:14:11 +0200

Comments closed due to abuse by serial spammers. If you want to comment, please send a mail.

Idetrorce: T-Shirt - UV Mapping - Example

nospam@example.com (Idetrorce) — Sat, 15 Dec 2007 13:37:44 +0100

very interesting, but I don't agree with you Idetrorce

Josef Meixner: To Do in September

nospam@example.com (Josef Meixner) — Wed, 05 Sep 2007 17:58:18 +0200

I obviously don't read my blog via the RSS stream, but yes, only the last 15 items are in the stream. But if I understand the configuration correctly, then you shouldn't miss entries, as the software keeps track and shows all the unread entries. I don't think it would be a good idea to extend the settings to all 730 entries, it would take quite a bit to download, I fear

Stephan: To Do in September

nospam@example.com (Stephan) — Wed, 05 Sep 2007 04:00:22 +0200

Cool blog you have there! I am very interested in reading it all from the beginning, but the RSS feed wouldn't download all the posts and I don't want to browse through the site everyday. Do you know a solution?

Christine: Trip to California

nospam@example.com (Christine) — Thu, 28 Jul 2005 21:43:06 +0200

coooool car great, that the internet seems to work ... I will follow your reports .... !! Have fun Christine

Christine: Goning to California (finally)

nospam@example.com (Christine) — Wed, 27 Jul 2005 12:35:07 +0200

Hi Josef! Have a good flight and enjoy your holiday and the SIGGRAPH ... In case of any trouble, call me Hope to hear from you soon, Christine

Josef: Fractal Landscapes

nospam@example.com (Josef) — Mon, 13 Jun 2005 18:09:13 +0200

I actually thought about that. I could easily apply a lowpass filter to the images. That would get rid of the spikes quite easily. And I guess, Terragen does the same, as you can calculate the cut-off frequency from those parameters. Problem is, that I can't do it in the state the code is currently. I have thought about it and think, I have an idea how to change the code. But I will have to think it through a bit longer.

Nikashera: Fractal Landscapes

nospam@example.com (Nikashera) — Sun, 12 Jun 2005 22:17:10 +0200

The pointedness along the top edge of the mountain range should be able to be smoothed out. Even though it is not the same thing, on Terragen, I had to increase the (x, y, slope) of the mountain peaks in order to make them look more realistic. Maybe your Raytracer can do the same?

Josef: Cog wheel

nospam@example.com (Josef) — Sat, 28 May 2005 09:44:26 +0200

I know what you mean. I also don't get it, as it is rather simple. The transmission ratio of two wheels is simply the ratio of the number of teeth or, equivalent, that of the diamaters. Three cog wheels never make any sense, as you can leave the middle one out. To get a bigger transmission ratio simply connect a small and a big wheel on the same axle. Nothing to it, but it seems, nobody cares. That is, why I added that last parts of some of the most ridiculous errors.