Decade Engine Example 7 - Car Physics

Decade Engine using ODE (Open Dynamics Engine) for basic Car Physics. Using ODE the centre of mass is always the centre of the object, therefore the car is very unstable and rolls often due to its high centre of gravity.

Category:

Science & Technology

Tags:

• Decade
• Engine
• C++
• OpenGL
• 3D
• ODE
• Open
• Dynamics
• Physics
• Car

[Danny77uk]

I see you're using spheres for the wheels. Do you have rollbars as well?

[DecadeEngine]

Not in this example. I have speheres as the wheels and a box for the car. This was a small learning exercise while integrating ODE into the Decade Engine so only basic phyics was added to the car.

[stuzguy]

what software do u use

[DecadeEngine]

Graphics are my own 3D engine, "Decade Engine" and physics is calcualted by ODE. (Open Dynamics Engine)

[XBOXNationTVHD]

your still working on the car to make it look better right.

[NitroMani0]

wow, did you srsly create a 3d engine alone??

cuz this one is awesome for a "one-man" production!!!

good job!

[cyborgtroy]

@RustyBinProductions - Well, all physics engines have some concept of a center of mass, Decade is just saying that he accidentally placed it wrong.

I also tried 3 physics engines, ODE, Tokamak, and Bullet, and found ODE to be my favorite. Tokamak has a stange API and Bullet's documentation is a little short of ODE, though I do like it.

[RustyBinProductions]

My 3D engine has ODE as one of the three Physics engines I've provided for it.... I wasn't aware that ODE enforced the centre of mass!

Learn something new every day :)

[van95122]

can u use the model from sketch up for this

[crazyfuturamafreak]

Nice wheel models. They look cool.

[zet23t]

you can move the center of mass by attaching the geom colliders with the dgeomtranform object. Instead of moving the center of mass, you will then simply move all geoms and connected objects. Result is then the same as with moving the center of mass. Works fine for me.