Transition effects

SDL Development
1

Hi,
I would like to make some basic transition effects when passing from one
surface to another (similar to power-point page transition effects -vertical
and horizontal blind, …-).
Is there any function or library that implements these functionalities or do
I have to implemet them?

Thanks
Leire

2

I don’t know, off-hand, of any libs on top of SDL that do this for you,
but the tricks are fairly simple. :^)

It might be worth separating out of your main code and releasing your
own (hopefully LGPL’d or similar :^) ) SDL library.

SDL_transition maybe? :wink:

PS - I did a few neat tricks (probably not really worth it for you want,
but worth examining) in the ‘Pause’ screen of my game Defendguin.
Effects like “Prison spotlight,” “Cheap rotation” (and the similar
"Cheap swirl"), “Sinus wavey”, and so forth…

-bill!On Mon, Nov 18, 2002 at 12:11:15PM +0100, Maruri Leire wrote:

Hi,
I would like to make some basic transition effects when passing from one
surface to another (similar to power-point page transition effects -vertical
and horizontal blind, …-).
Is there any function or library that implements these functionalities or do
I have to implemet them?

3

Hi,
I would like to make some basic transition effects when passing from one
surface to another (similar to power-point page transition effects
-vertical and horizontal blind, …-).
Is there any function or library that implements these functionalities or
do I have to implemet them?

Thanks
Leire

4

Bill Kendrick writes:

It might be worth separating out of your main code and releasing your
own (hopefully LGPL’d or similar :^) ) SDL library.

SDL_transition maybe? :wink:

There’s the DemoEffectsCollection project - http://www.paassen.tmfweb.nl/retrodemo.html
it’s GPL’d and includes at least one transition effect (doom-like
melting).

PS - I did a few neat tricks (probably not really worth it for you want,
but worth examining) in the ‘Pause’ screen of my game Defendguin.
Effects like “Prison spotlight,” “Cheap rotation” (and the similar
"Cheap swirl"), “Sinus wavey”, and so forth…
I think it’d be great if you could contribute these effects to the
Demo Effects Collection.

– Ed

5

Dunno if I have time. But, Defendguin is GPL too, so have at it! :wink:

-bill!On Thu, Nov 21, 2002 at 09:44:05AM +0300, edsin at swes.saren.ru wrote:

PS - I did a few neat tricks (probably not really worth it for you want,
but worth examining) in the ‘Pause’ screen of my game Defendguin.
Effects like “Prison spotlight,” “Cheap rotation” (and the similar
"Cheap swirl"), “Sinus wavey”, and so forth…
I think it’d be great if you could contribute these effects to the
Demo Effects Collection.