Version 0.1 Alpha Release: Irrlicht Dedicated Physics Engine

Radikalizm · Post by **Radikalizm** » Tue Jan 11, 2011 2:23 pm

Alpha Omega wrote: (I am a chemical engineer so sorry for the vocabulary).

I'm an engineering student myself, so the vocabulary is not a problem

fmx · Post by **fmx** » Tue Jan 11, 2011 4:00 pm

The best way to learn is to do it.
Good luck, and may the force be with you...

devsh · Post by **devsh** » Tue Jan 11, 2011 5:18 pm

Use OctTrees for pruning, use OctTrees for ALL!

Alpha Omega · Post by **Alpha Omega** » Wed Jan 12, 2011 2:11 am

Just posted a new video that represents frictional 2D co-planar collisions. I think they came out really nice. Anyone have a good bowling or shuffle board game for a stress test?

sudi · Post by **sudi** » Wed Jan 12, 2011 3:25 am

looks really nice but doesn't it miss rotation?

Alpha Omega · Post by **Alpha Omega** » Wed Jan 12, 2011 3:43 am

Sudi wrote:looks really nice but doesn't it miss rotation?

The cubes rotate when they collide. I am still working on the scaling so in that specific example they do not rotate by much but they do rotate. Think of it like a pool ball. When you make a corner shot the balls do not rotate but bounce off at an angle. The angle they come off the collision is a result of the torque applied on both bodies.

ulao · Post by **ulao** » Wed Jan 12, 2011 5:23 pm

Does it have support for terrains or big heightfields? Will you be making an irredit plug in?

All good things come from Finland, Children of Bodom

- Damn right! But I didnt like that latest album.

devsh · Post by **devsh** » Wed Jan 12, 2011 6:00 pm

Check out the GPU gems 3 - GPU physics representing objects as balls of particles...

@ ulao:
I havent heard the new album yet, I wanna go to their concert.... but I live far away and I cant get a train back same day

Fury. · Post by **Fury.** » Thu Jan 13, 2011 9:59 am

great work.

it is not too difficult adding more complex phisics. think especially about 3d islands (group of items moving together). this is very usefull to speed up computing .

Alpha Omega · Post by **Alpha Omega** » Mon Jan 17, 2011 6:36 am

Posted a speed test using OBB collision detection. Its only half way implemented and using a check cheap collision check, not as check as AABB but still cheap.

Luben · Post by **Luben** » Tue Jan 18, 2011 6:04 pm

This is kewl :] But did i just see the cubes intersecting each other @~23 seconds in that latest video? :p

Alpha Omega · Post by **Alpha Omega** » Tue Jan 18, 2011 7:32 pm

Luben wrote:This is kewl :] But did i just see the cubes intersecting each other @~23 seconds in that latest video? :p

Still working out all the bugs

REDDemon · Post by **REDDemon** » Tue Jan 18, 2011 10:11 pm

I have already have phisic engine for my simple 2d game. But I'll take a try with your phisics manager. if it is good I will use it, since some features are already a TODO in my game I can help you a bit founding bugs and stress testing things.

EDIT: it seems to miss the download link. will you leave it opensource?

Alpha Omega · Post by **Alpha Omega** » Wed Jan 19, 2011 11:43 am

REDDemon wrote:I have already have phisic engine for my simple 2d game. But I'll take a try with your phisics manager. if it is good I will use it, since some features are already a TODO in my game I can help you a bit founding bugs and stress testing things.

EDIT: it seems to miss the download link. will you leave it opensource?

Once the project is in a releasable state a download link will be posted. It will most likely remain opensource. Once I finish up this last bit of collision detection I will most likely post an alpha release so the basics can be thoroughly evaluated. If you would like to stress test that would be appreciated

.

Alpha Omega · Post by **Alpha Omega** » Sat Jan 22, 2011 12:52 am

Just posted anew video update. It is the first stress test for the engine. Its to test how many physics objects can spawn in the world. I tested with 1000 cubes. I did the video in real time so it is laggy but it ran and for 1000 cubes in real time, checking all collisions simultaneously was not a bad first attempt video is on the OP.