Function NvFlexExtMovingFrameApply

extensions/flexExtMovingFrame.cpp:98–127

}

void NvFlexExtMovingFrameApply(NvFlexExtMovingFrame* frame, float* positions, float* velocities, int numParticles, float linearScale, float angularScale, float dt)
{
	const MovingFrame& f = (MovingFrame&)(*frame);

	// linear force constant for all particles
	Vec3 linearForce = f.GetLinearForce()*linearScale;

	for (int i=0; i < numParticles; ++i)
	{
		Vec3 particlePos = Vec3(&positions[i*4]);
		Vec3 particleVel = Vec3(&velocities[i*3]);

		// angular force depends on particles position
		Vec3 angularForce = f.GetAngularForce(particlePos)*angularScale;

		// transform particle to frame's new location
		particlePos = Vec3(f.delta*Vec4(particlePos, 1.0f));
		particleVel += (linearForce + angularForce)*dt;

		// update positions
		positions[i*4+0] = particlePos.x;
		positions[i*4+1] = particlePos.y;
		positions[i*4+2] = particlePos.z;

		velocities[i*3+0] = particleVel.x;
		velocities[i*3+1] = particleVel.y;
		velocities[i*3+2] = particleVel.z;
		
	}
}