papervision3D 关于lookAt error问题
在papervision3D中将camera.z=0就会出项lookAt:error的问题。
If you get this error on each frame then you have probably moved the camera to the same position as the object (camera.z = 0). Change it a bit and the error should be fixed.
就是说camera在相同的位置。就会出现这个问题。
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