checkInFoV correction

[Azaezel]

requested:
#1009
crosscheck vs

Torque3D/Engine/source/T3D/fps/guiShapeNameHud.cpp

Lines 177 to 240 in 69838bd

	// Get control camera info
	MatrixF cam;
	Point3F camPos;
	VectorF camDir;
	conn->getControlCameraTransform(0,&cam);
	cam.getColumn(3, &camPos);
	cam.getColumn(1, &camDir);
	F32 camFov;
	conn->getControlCameraFov(&camFov);
	camFov = mDegToRad(camFov) / 2;
	// Visible distance info & name fading
	F32 visDistance = gClientSceneGraph->getVisibleDistance();
	F32 visDistanceSqr = visDistance * visDistance;
	F32 fadeDistance = visDistance * mDistanceFade;
	// Collision info. We're going to be running LOS tests and we
	// don't want to collide with the control object.
	static U32 losMask = TerrainObjectType | ShapeBaseObjectType;
	control->disableCollision();
	// All ghosted objects are added to the server connection group,
	// so we can find all the shape base objects by iterating through
	// our current connection.
	for (SimSetIterator itr(conn); *itr; ++itr) {
	ShapeBase* shape = dynamic_cast< ShapeBase* >(*itr);
	if ( shape ) {
	if (shape != control && shape->getShapeName())
	{
	// Target pos to test, if it's a player run the LOS to his eye
	// point, otherwise we'll grab the generic box center.
	Point3F shapePos;
	if (shape->getTypeMask() & PlayerObjectType)
	{
	MatrixF eye;
	// Use the render eye transform, otherwise we'll see jittering
	shape->getRenderEyeTransform(&eye);
	eye.getColumn(3, &shapePos);
	}
	else
	{
	// Use the render transform instead of the box center
	// otherwise it'll jitter.
	MatrixF srtMat = shape->getRenderTransform();
	srtMat.getColumn(3, &shapePos);
	}
	VectorF shapeDir = shapePos - camPos;
	// Test to see if it's in range
	F32 shapeDist = shapeDir.lenSquared();
	if (shapeDist == 0 || shapeDist > visDistanceSqr)
	continue;
	shapeDist = mSqrt(shapeDist);
	// Test to see if it's within our viewcone, this test doesn't
	// actually match the viewport very well, should consider
	// projection and box test.
	shapeDir.normalize();
	F32 dot = mDot(shapeDir, camDir);
	if (dot < camFov)
	continue;

upon which that was based.