I have got the answer about "null", it seems the megapov rendered the pic in
binary dots, like the message shows, but the pic still could not be displayed,
i still working on this
ps, the new command is this:
!"C:\Program Files\POV-Ray for Windows v3.6\bin\MEGAPOV"
+I"E:\Dropbox\POV ray\2012.07.10\Tree Model_only Leafs_no_shadow07.pov"
+O"Tree Model_only Leafs_no_shadow07.bmp"
+L"C:\Program Files\POV-Ray for Windows v3.6\include"
+W800 +H600 +D
Post a reply to this message