Set position

[MASM_Fanatics]

I want to know how to set a body position and how to detect if it was collide?

[JernejL]

I want to know how to set a body position and how to detect if it was collide?

You only set starting location for a body with newtonbodysetmatrix. you don't move the body later - rather you apply the forces (newtonbodyaddforce / newtonbodyaddtorque) in forcetorque callback and then advance simulation with newtonupdate and newton performs collision checks for you, but you can detect collisions during the material callback.

[MASM_Fanatics]

How to set the callback for each time my mesh is collided?

[tiresius]

These are very broad questions. Instead of asking them here you should check the Tutorials for 2.0 on the WIKI (link at top of forum page) and study the code in them. Once you have specific questions about a particular problem you're having in your code the people here can help more.

[JernejL]

How to set the callback for each time my mesh is collided?

I already answered that - you can detect collisions during the material callback with NewtonMaterialSetCollisionCallback .

[MASM_Fanatics]

Delfi:
Sorry the function name confuse me. So I haven't check it.

Please appoligize that I am a complete newbie and I am not as expert as you all. So, there is so many thing that I cant understand.
I tried to use NewtonCreateTreeCollision like this,

NewtonCreateTreeCollision,world,lpCollisionFunction

Am I on the right track?
I created 2 body where one of its body is a triangle mesh. I want to test the collision by setting the position so it will collide each other but no luck.
Here is how I set the position

Code: Select all

glTranslatef,hmn_pos.x,hmn_pos.y,hmn_pos.z
glRotatef,CFLT(0.0),CFLT(1.0),CFLT(1.0),CFLT(1.0)
glGetFloatv,GL_MODELVIEW_MATRIX,addr buff
fMat4fTranspose,addr buff,C2R  << My own matrix transpose function
NewtonBodySetMatrix,b2,addr buff


Or I must use NewtonMaterialSetCollisionCallback ?