[Bf-committers] RE_rayobject_raycast divide by zero

[Campbell Barton]

noticed RE_rayobject_raycast will often divide by zero, perhaps this
is ok but seems like it could lead to problems,
is this intentional?

---- rayobject.cpp:383
isec->idot_axis[i]		= 1.0f / isec->vec[i];
----

int RE_rayobject_raycast(RayObject *r, Isect *isec)
{
	int i;
	RE_RC_COUNT(isec->raycounter->raycast.test);

	/* Setup vars used on raycast */
	isec->dist = len_v3(isec->vec);
	
	for(i=0; i<3; i++)
	{
		isec->idot_axis[i]		= 1.0f / isec->vec[i];
		
		isec->bv_index[2*i]		= isec->idot_axis[i] < 0.0 ? 1 : 0;
		isec->bv_index[2*i+1]	= 1 - isec->bv_index[2*i];
		
		isec->bv_index[2*i]		= i+3*isec->bv_index[2*i];
		isec->bv_index[2*i+1]	= i+3*isec->bv_index[2*i+1];
	}

-- 
- Campbell