本文整理汇总了C++中LLVector3::isNull方法的典型用法代码示例。如果您正苦于以下问题：C++ LLVector3::isNull方法的具体用法？C++ LLVector3::isNull怎么用？C++ LLVector3::isNull使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类LLVector3的用法示例。
在下文中一共展示了LLVector3::isNull方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: focusZoomOnMedia
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();
}
}
}
}示例2: linesegment_box
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;
}