Change scene

平民百姓++at++pub.foshan.gd.cn
Wed, 05 Aug 1998 23:19:00 +0800

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in my visual simulation program, it is required that in one simulation
session(from pfInit to pfExit) there should be three or four scenes(each
with an airport) available but only one scene needed under scene graph.
During simulation the scenes should be swaped according to the control
message.

My questions are:
1. If I load all these scenes(each in a .flt file) with pfdLoadFile(),
but
only pfAddChild one, then will the others take the system
resources(texture
memory and system memory)?
2. If I only load the needed one, then at swap the old one should be
deleted and free all the resources. Is there a simple methord to free
all
the resources taken by a scene node?

Thank your for reading this message and any help would be greatly
appreciated.

Cao Zhigang
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