[GEM-dev] motion blur

[Erich Berger]

hi chris,

thx for your patience in the motion blur business :-) .
it works well - but unfortunately its a motionblur in
single buffering. but there is also another problem:

unless i make something wrong it works for 2d but not 3d.
only those pixels of the scene which have the same 
z-coordinate as the rectangle for the blur get blurred, the rest
gets drawn like in single buffer mode

e

> I found a stupidly simple way to get 'motion blur' with next to zero
> resources.  Ready?
>
> Use single buffer rendering
> Set up the scene to draw
> draw everything with positive gemhead numbers
> set up a gemhead -1
> add the alpha, colorRGB 0 0 0 0 and a rectangle object
> make the rectangle equal the porpotions of the window (4 4 for square,
> 5.334 for 4:3 rectangle)
> modulate the alpha inlet to control the blur amount
>
> Stupid enough?
>
> cgc