[Edu-sig] no Python 2.0 bindings for Lightflow until now ...
Charlie Derr
drivel_drool@bigfoot.com
Wed, 31 Jan 2001 20:24:18 -0500
Hi all,
I hope you'll forgive this tech-support-like question being posted to a
non-tech-support list, but there's been so much discussion about Lightflow
here, that I thought someone would be bound to know the answer...
I am an enthusiastic (but not so very experienced) pythonista. I just
downloaded the lightflow python module for windows (NT in my case). I have
python 1.5 installed, but the instructions in the Lightflow documentation
don't seem to make much sense to me.
<quote from Lightflow\CS\Docs\Chap1.html>
Tutorial
The following example is one of the simplest possible scenes that can be
rendered: a sphere in the empty space.
Now start your preferred text editor and type the following text. When you
have finished save it in a file, and then start python from a console
passing the file name as an input (for example, if you have saved the file
as example.py, just type: python example.py).
----------------------------------------------------------------------------
----
#include < Lightflow/LfLocalSceneProxy.h >
void main(void)
{
LfLocalSceneProxy* s = new LfLocalSceneProxy();
LfArgList list;
list.Reset();
list << "position" << LfPoint( 5.0, -5.0, 4.0 );
list << "color" << LfColor( 300.0, 300.0, 300.0 );
s->LightOn( s->NewLight( "point", list ) );
list.Reset();
list << "ka" << LfColor( 0, 0, 0.5 );
list << "kc" << LfColor( 1, 0.5, 0.5 );
list << "kd" << 0.5;
list << "km" << 0.1;
LfInt plastic = s->NewMaterial( "standard", list );
s->MaterialBegin( plastic );
list.Reset();
list << "radius" << 1.0;
s->AddObject( s->NewObject( "sphere", list ) );
s->MaterialEnd();
list.Reset();
list << "file" << "ball1.tga";
LfInt saver = s->NewImager( "tga-saver", list );
s->ImagerBegin( saver );
list.Reset();
list << "eye" << LfPoint( 0, -4, 0 );
list << "aim" << LfPoint( 0, 0, 0 );
LfInt camera = s->NewCamera( "pinhole", list );
s->ImagerEnd();
s->Render( camera, 300, 300 );
delete s;
}
</quote from lightflow manual>
My problem is that this doesn't really look like python to me. I'm guessing
it's either c or c++. When i follow the instructions given above the code
(i pasted the code into a file exam.py) , i get:
Microsoft(R) Windows NT(TM)
(C) Copyright 1985-1996 Microsoft Corp.
C:\>cd python
C:\Python>cd lf
C:\Python\lf>ls
Lightflow exam.py
C:\Python\lf>python exam.py
File "exam.py", line 3
void main(void)
^
SyntaxError: invalid syntax
Do i need to use gcc to compile this file first? (I have the cygwin port of
gcc, but am unfamiliar with its use) I tried, but it wasn't able to find
the included header file. While you folks are answering (or not) I'll be
trying to get lightflow to work on linux -- maybe this stuff makes more
sense there.
thanx very much for any information,
~c