[Solved] Transition with explosion effect?

[Marchare]

So I'm working on the Ren'py port of a Japanese visual novel, and I'm stuck at the first transition.

First is normal speed, other one has been slowed down to 1 frame per second



From what I can see, the transitions goes like this:
1) starts with a black background + the textbox
2) there is a first flash, with the white patch growing and taking almot the entire window very quickly
3) the white patch retreats/shrinks and the background goes black again
4) there come second, much slower flash.

Should I use something similar to circlerisin from the renpy tutorial and fiddle with the ramplen? Should I make a transparent white circle and have it zoom in and out?
I believe there are quite a lot of ways I could re-create that explosion effect with Ren'py, but I don't know where to start.

Edit: Alright, for anyone in the future that would need it, here's the code I found for a decent imitation:

Code: Select all

image white = Solid("#ffffff")

label start:
    scene white
    with ImageDissolve("light.png", .1, 50)
    scene black
    with ImageDissolve("light.png", .1, 50, reverse=True)
    scene white
    with ImageDissolve("light.png", .8, 50)

For my case, this transition will only be used once so I didn't feel the need to define it, not that I know how to do so.

[xela]

I am not very good with transitions but both of your ideas are perfectly sound and my approach would be to go with a custom transition(s) instead of ATL (zoom) here but as that seems more reasonable to me but that depends on a coder...

[PyTom]

I think this is just an ImageDissolve with the appropriate control image.

[Marchare]

Alright, for anyone in the future that would need it, here's the code I found for a decent imitation:

Code: Select all

image white = Solid("#ffffff")

label start:
    scene white
    with ImageDissolve("light.png", .1, 50)
    scene black
    with ImageDissolve("light.png", .1, 50, reverse=True)
    scene white
    with ImageDissolve("light.png", .8, 50)

For my case, this transition will only happen once so I didn't feel the need to define it, not I know how to do so.

Thanks for your help!