OPENGL + NEWTON

[codemasterpl]

First of all - hello everyone.

I am new to Newton - working previously with Tokamak.

I would like to ask you about methods of 'placing' objects in the scene and rendering them.

I use pure OpenGL and Newton, no additional rendering classes.

How do i:

- place a created object in X,Y,Z location
- rotate that object
- get it's position and rotation (required for rendering)

[Julio Jerez]

you can use the function get and set matrix for placemenet and rendering,
There is also convex cast that can be used for precised placement.

I am not clear on what it is you want to know

There is a series of entry level tutorials for first timers, and it uses Open GL, with SDL for initialization.
http://newtondynamics.com/wiki/index.php5?title=Tutorials

[JernejL]

First of all, welcome to the forum

How do i:

- place a created object in X,Y,Z location

First create the collision shape with NewtonCreateBody, NewtonCreateBox, etc..
Then create a body to hold the shape with NewtonCreateBody and place it with NewtonBodySetMatrix, set it's mass with NewtonBodySetMassMatrix (or else the body will be considered static).

- rotate that object

Inside the forcetorque callback you can apply this, as a proper way to interact with the object: NewtonBodyAddTorque, NewtonBodySetOmega
Alternate ways are: NewtonBodySetMatrix (set the orientation directly) OR using the Joint interface

- get it's position and rotation (required for rendering)

With NewtonBodySetTransformCallback you set a callback which will tell you when the body location and orientation changes, then you use NewtonBodyGetMatrix which gives you a standard 4x4 matrix that you can use as rendering matrix.