Subject:
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Re: Help for povray needed!
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Newsgroups:
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lugnet.cad.dev
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Date:
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Wed, 19 Apr 2000 19:53:33 GMT
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In lugnet.cad.dev, Michael Lachmann wrote:
> In lugnet.cad.dev, Chuck Sommerville writes:
> >
> > You probably want something like :
> > povengine /RENDER <filename> /NR /EXIT
>
> <SNIP>
>
> Thanks, this helps a lot, but now there is one problem left:
>
> MLCad first creates the dat file to be converted, than calls L3P to convert it
> into pov and than it executes pov-ray with the above statement.
> If you do that for multiple steps, you either get multiple instances of pov-ray
> running at the same time, which might overload several computers, or if you
> just enable one instance, you get an error saying that the renderer is already
> running ....
There are a couple of ways around this. One is to write all the POV-Ray
commands to a .BAT file, using the START command with its /WAIT option. After
compiling all the needed files, run the .BAT file.
Another way is to launch POV-Ray, then put MLCad to sleep until POV-Ray
finishes.
In LDAO, I use the following routine to launch a process and wait for it to
finish:
Public Sub ShellAndWait(ByVal CmdLine As String)
' CmdLine holds the commandline for a program to be launched.
Dim proc As PROCESS_INFORMATION
Dim start As STARTUPINFO
Dim ret As Long
' Initialize the STARTUPINFO structure:
start.cb = Len(start)
' Start the shelled application:
ret = CreateProcessA(0&, CmdLine, 0&, 0&, 1&, _
NORMAL_PRIORITY_CLASS, 0&, 0&, start, proc)
' Wait for the shelled application to finish:
ret = WaitForSingleObject(proc.hProcess, INFINITE)
ret = CloseHandle(proc.hProcess)
End Sub
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Message has 1 Reply:
 | | Re: Help for povray needed!
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| In lugnet.cad.dev, Steve Bliss writes: <SNIP> Thank you steve! Over the week-end I had more time, and found exactly the same way, just in C++. But (how should it be different) there is another problem ... This works fine for pov-ray, with L3P this (...) (25 years ago, 23-Apr-00, to lugnet.cad.dev)
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Message is in Reply To:
| | Re: Help for povray needed!
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| (...) <SNIP> Thanks, this helps a lot, but now there is one problem left: MLCad first creates the dat file to be converted, than calls L3P to convert it into pov and than it executes pov-ray with the above statement. If you do that for multiple (...) (25 years ago, 19-Apr-00, to lugnet.cad.dev)
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