An orientation is a state: “the object’s orientation is…”
A rotation is an operation: “Apply this rotation to the object”
That is, when you apply a rotation, you change the orientation. Both can be represented with the same tools, which leads to the confusion.
from http://www.opengl-tutorial.org/intermediate-tutorials/tutorial-17-quaternions/
2014년 12월 26일 금요일
2014년 12월 5일 금요일
"There is no connected camera"
sudo killall VDCAssistant
from http://osxdaily.com/2013/12/27/fix-there-is-no-connected-camera-error-mac/
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