Comments on: 32. OpenGL Particle Engine

By: Swiftless

Swiftless — Mon, 06 Dec 2010 02:05:50 +0000

Hey Mark,

It will run at whatever speed your system will support. The best way to keep it all at a common speed is to switch to time based movement, so that everything you do is based on the current elapsed time. There is plenty of information on the Internet about this, but feel free to get back to me if you have any issues.

Cheers,
Swiftless

By: Mark

Mark — Fri, 22 Oct 2010 05:25:15 +0000

Thanks for writing these tutorials!!! I have worked my way through almost all of them now.

A question I have about this tutorial is that you mentioned that it runs at 80 frames per second but when I run this on my computer it is all a blur.

I added the line (and the library unistd.h):
usleep(10000 – glutGet(GLUT_ELAPSED_TIME)/1000) % 10000);

right before glutSwapBuffers();
I think this gets me to 100 frames per second, is there a better way to do this?

Thanks.

By: Austin

Austin — Fri, 17 Sep 2010 06:38:33 +0000

I have to say, big fan of your tutorials. This one in particular really made my day.

Best tutorials since Nehe. (I switched over to yours because you don’t use glaux)

Thanks.

By: Hitman

Hitman — Sun, 29 Aug 2010 15:33:57 +0000

Hello

Good tutorial.
Why you cannot change the color to 0.1, 0.2, 0.3… ?
it worked for me.

By: chandaboy

chandaboy — Wed, 25 Aug 2010 07:29:48 +0000

Aslam o alkum,, can you give me full tutorial of particle engine in opengl … because I am new in using opengl .. plz help me in this matter

By: Swiftless

Swiftless — Fri, 13 Aug 2010 01:28:44 +0000

Hey Sean,

That PDB message won’t effect the final output of the application. I’m not quite sure what could be causing the problem. My first guess would be, is it loading the textures correctly?

Cheers,
Swiftless

By: Sean

Sean — Wed, 11 Aug 2010 16:19:48 +0000

Dude. Ive learnt alot from this site. Its sick. But, my particle system runs and no errors are coming up but the display is blank, just the black background. The warning messages ‘Cannot find or open the PDB file’, do come up but i heard that does’nt effect the program and i have no idea and don’t want to know about symbol servers at the minute. Can you help me? Seriously sick tutorials every other one, and I’ve nearly done all of them are sweet. Particle systems have a history of beating me, desperate to figure them out. Many Thanks.

By: Student

Student — Wed, 28 Apr 2010 12:53:58 +0000

Oh, sorry I think about cstdlib header file.

By: Student

Student — Wed, 28 Apr 2010 12:52:46 +0000

Hello! I think You should add line:
#include
for rand().

By: particle control

particle control — Sun, 04 Apr 2010 14:44:18 +0000

[...] they must be directed to self-assemble, which … Mail (will not be published) (required) …32. OpenGL Particle Engine | SwiftlessLets face it, particles are ALOT of fun. Whether you want to create a weather system, some awesome [...]