Method update

examples/OpenGLWindow/SimpleCamera.cpp:209–255

}

void SimpleCamera::update()
{
	b3Scalar yawRad = m_data->m_yaw * b3Scalar(0.01745329251994329547);      // rads per deg
	b3Scalar pitchRad = m_data->m_pitch * b3Scalar(0.01745329251994329547);  // rads per deg
	b3Scalar rollRad = 0.0;
	b3Quaternion eyeRot;

	int forwardAxis(-1);
	switch (m_data->m_cameraUpAxis)
	{
		case 1:
			forwardAxis = 2;
			m_data->m_cameraUp = b3MakeVector3(0, 1, 0);
			//gLightPos = b3MakeVector3(-50.f,100,30);
			eyeRot.setEulerZYX(rollRad, yawRad, -pitchRad);
			break;
		case 2:
			forwardAxis = 1;
			m_data->m_cameraUp = b3MakeVector3(0, 0, 1);
			//gLightPos = b3MakeVector3(-50.f,30,100);
			eyeRot.setEulerZYX(yawRad, rollRad, pitchRad);
			break;
		default:
		{
			//b3Assert(0);
			return;
		}
	};

	b3Vector3 eyePos = b3MakeVector3(0, 0, 0);
	eyePos[forwardAxis] = -m_data->m_cameraDistance;
	eyePos = b3Matrix3x3(eyeRot) * eyePos;

	m_data->m_cameraPosition = eyePos;

	m_data->m_cameraPosition += m_data->m_cameraTargetPosition;

	m_data->m_cameraForward = m_data->m_cameraTargetPosition - m_data->m_cameraPosition;
	if (m_data->m_cameraForward.length2() < B3_EPSILON)
	{
		m_data->m_cameraForward.setValue(1.f, 0.f, 0.f);
	}
	else
	{
		m_data->m_cameraForward.normalize();
	}
}

void SimpleCamera::getCameraProjectionMatrix(float projectionMatrix[16]) const
{