Re: [Visualpython-users] Images in VPython

[Jonathan B. <jbr...@ea...>]

On Thu, 2004-09-09 at 10:20, Jonathan Brandmeyer wrote:
>   You can only really set
> transparency for an individual zero-thickness planar triangle in
> OpenGL.  

That is not strictly true.  You can also specify it for a point, whose
size is measured in pixels.  Flames and fog clouds are done this way, in
games, and the tech to do it is commonly called a 'particle engine', if
you want to google for more info.

Visual doesn't have a 'points' object yet, but a team in Australia is
working on one.  I don't know if they intend to imbue it with particle
engine functionality, but I think it is meant to be more like the
'curve' object.

-Jonathan