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tviewport4GLdoublemvmatrix16projmatrix16glGetI
tegervGL_VIEWPORTviewport
fglGetDoublevGL_MODELVIEW_MATRIXmvmatrixglGetDoublevGL_PROJECTION_MATRIXprojmatrixgluProjectp0p1p2mvmatrixprojmatrixviewportwi
xwi
ywi
zwi
yviewport3wi
yi
tbutto
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ts_mousei
tbutto
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tstatei
txi
tyfloatwxwybutto
butto
ifbutto
GLUT_LEFT_BUTTONstateGLUT_DOWNtypeBez3difisPro如果按下双数次q键或未按fori
ti0i
cptsiProjectcptsiifxwi
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x3ywi
y3ywi
y3m_drawPosipri
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