Easy Custom Circular Fade Maker

[LB]

I made this for my own use, but I have decided to share it with the community. By changing the two global values, you can make an image to put in the alpha channel of something an active object, for example. This makes circular fades from a black background to a white center. To get the fade area you want, screenshot it and crop the section you want with the desired image editing software.

You can customize the diameter of the circle and the Fade amount. If the Fade value and Diameter values are the same, say 64 and 64, the whole image will be 64 by 64 pixels, and the size of the white center will be 32 by 32 pixels. If the Fade value is 32, then the size of the inner circle will be 48 by 48 pixels. Essentially it is the distance between inner and outer circle / 2.

It makes some nice fades and can work with whatever you like once you are using it as an alpha channel for some object or another. Or just use if for some other purpose unkown to me.

It uses 2 events, some simple math, and the Surface object.
Enjoy!

EDIT: Check out this super awesome image I just made with it!

[Simon]

Very cool

[Looki]

Nice
Too bad it looks a bit clumsy because of the aliasing of the ellipse edges. You could do the math on your own, with the distance formula, but of course it wouldn't be that fast because drawing an ellipse is faster in C++ than in MMF. Another solution would be drawing a bigger image (Twice as big would do fine) and then scale it down to half the size with resampling on (Active "anti-aliasing" in the object properties, where you set the ink effect).

One question: Did you make that image solely with the Surface object? It's possible quite easily. At least for me, I know how it works - I really have to work on that documentation :blush:

[LB]

If you look at the MFA you can see the code for yourself

And no I imported the result of the surface object into an active object's alpha channel, then I colored the image entirely green and it made that nice circle

[Looki]

I did have a look at the code obviously. :P

[LB]

OK, I thought you hadn't because I misunderstood this:

Did you make that image solely with the Surface object? It's possible quite easily. At least for me, I know how it works - I really have to work on that documentation :blush:

[Looki]

I was referring to the image