[Question] Where can I find the implementation of the GlowFilter in Ruffle/FlashSpec?

[TheIceCreamBear]

Hello all,

I am attempting to convert a Flash-based UI system to be used in a different engine. While exploring the flash files using JPEXS, I have come across multiple Text objects that have a GlowFilter in their filter list. I have not been able to find a good explanation of how this was implemented.

My question to the Ruffle community is this:

• Where can I find the math and code behind applying a GlowFilter in Ruffle?
• Where can I find a good specification on the math for a GlowFilter?
  • (I have looked at this spec and found where it talks about GlowFilter, but it does not contain information that clearly defines how it works)

Thank you

[Lord-McSweeney]

Ruffle does not yet support GlowFilter at all.

[TheIceCreamBear]

Do you have any good public documentation I can look at to understand how it works then?

[coder0107git]

When I Googled the documentation, I found this and this.

[TheIceCreamBear]

When I Googled the documentation, I found this and this.

Unfortunately the linked documentation is how to use the filter in flash or spark, as opposed to what I am looking of how it was implemented under the hood of the rendering engine (which is why I initially came to ruffle hopping they had it implemented and readable).

However using I was able to google fu my way into finding OpenFL, which has an implementation of the glow filter that I will be looking at later for inspiration.