void LLViewerMediaFocus::focusZoomOnMedia(LLUUID media_id)
{
LLViewerMediaImpl* impl = LLViewerMedia::getMediaImplFromTextureID(media_id);
if(impl)
{
// Get the first object from the media impl's object list. This is completely arbitrary, but should suffice.
LLVOVolume *obj = impl->getSomeObject();
if(obj)
{
// This media is attached to at least one object. Figure out which face it's on.
S32 face = obj->getFaceIndexWithMediaImpl(impl, -1);
// We don't have a proper pick normal here, and finding a face's real normal is... complicated.
LLVector3 normal = obj->getApproximateFaceNormal(face);
if(normal.isNull())
{
// If that didn't work, use the inverse of the camera "look at" axis, which should keep the camera pointed in the same direction.
// llinfos << "approximate face normal invalid, using camera direction." << llendl;
normal = LLViewerCamera::getInstance()->getAtAxis();
normal *= (F32)-1.0f;
}
// Attempt to focus/zoom on that face.
setFocusFace(obj, face, impl, normal);
if(mMediaControls.get())
{
mMediaControls.get()->resetZoomLevel();
mMediaControls.get()->nextZoomLevel();
}
}
}
}
U32 linesegment_box(const LLVector3 &point_a, const LLVector3 &point_b,
const LLVector3 &box_center, const LLVector3 &box_scale, const LLQuaternion &box_rotation,
LLVector3 &intersection, LLVector3 &intersection_normal)
{
LLVector3 direction = point_b - point_a;
if (direction.isNull())
{
return NO_SIDE;
}
F32 segment_length = direction.normVec();
U32 box_side = ray_box(point_a, direction, box_center, box_scale, box_rotation, intersection, intersection_normal);
if (NO_SIDE == box_side || segment_length < (intersection - point_a).magVec())
{
return NO_SIDE;
}
return box_side;
}