Re: [Visualpython-users] Why no screenshot function?

[Kadir H. <kha...@ya...>]

In Windowns environment, I use screenshots captured by PIL utilities, to create simple movies by using available Windows tools (like MovieMaker).

Screenshot PNG quality for a "normal" size screen is much much higher than the video output I get from them. You loose on quality more while converting to video than you loose on capture.

Blender (I believe also available on Linux) also has a movie editor where you can create movies from screen captures with better quality. You can get larger screen size videos with better quality.

However, video outputs are usually very large in file size, and I prefer to create executables rather than movies these days. That gives the best image quality (as we see on Visual screen, as usual).

POV quality is something else. It is the additional realism provided by ray tracing, not resolution (not pixel resolution at least, but "color" resolution, i.e., "true" shading). But it has a very high cost (yet).

Depending on your need, plain screen capture should do, or if possible or practical I suggest to use executables.

Kadir




________________________________
From: Samuel Pelaez <sam...@gm...>
To: Guy K. Kloss <g....@ma...>
Cc: vis...@li...
Sent: Tue, October 20, 2009 3:44:31 AM
Subject: Re: [Visualpython-users] Why no screenshot function?


Hi guys,
I definetly agree with Anders. In my work I use Visual to make an animation of the time evolution of a system of particles. In order to save such an animation I must save each frame using the povexport module and then compile every frame with povray. Finally I create the proper gif animation.
However the povray compilation is very time-consuming if you want to get a decent image resolution. If there is a "native" way (as native as C/C++ can be in vpython) to take screenshots within vpython, it would make things easier and most probably less time-expensive.
Samuel. 
El 19 de oct de 2009, 10:31 p.m., "Guy K. Kloss" <g....@ma...> escribió:
>
>
>On Tue, 20 Oct 2009 09:23:41 Anders Wallin wrote:
>> Could this perhaps be wrapped as a separate pyth...Visual is mainly C/C++. So I assume that could (easily) be added and exposed
>>through the Boost.Python wrappers to make it all work.
>
>>Guy
>
>-- 
>Guy K. Kloss
>Institute of Information and Mathematical Sciences
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