In coding, doing this is trivial: function myCustomShape(paintCallback) { applyStroke() // default paint paintCallback() // custom paint optionally passed by user drawCustomShape() } but there seem to be no way to do this right now in vvvv. I cannot think of a way to specify my own SkiaPain…

I’m not a JavaScript pro, but it seems that, conceptually, you just want to hand a delegate (callback function) and call it back (invoke it). Or to put it in simple words: You want to cut a hole into a patch. To cut a hole into a patch, you can use a Invoke [Delegate], and ask for the delegate to…

Thanks @gregsn , I haven’t looked into custom regions and delegates properly up until now. My use case is a little different and I don’t want to involve custom region in the API exposed to the user. Here’s in vvvv terms what I wanted (contrived): Right now a Rectangle node draws a white filled rect…

Sure. This is possible. pinkRectangleByDefault.vl (12.0 KB) Just to clarify: Your question sounded like you’d want to build a callback function and hand it over. In textual code you’d then have a code block somewhere that actually builds the delegate that you’d hand over to myCustomShape. The eq…

Oh I thought it’d be easier to understand if I used code but seems like I confused people even more. This post rather describes in vvvv terms what I wanted to achieve.

[image] gregsn: pinkRectangleByDefault.vl Hi. This is close, but still not what I wanted to achieve. If I only pass SetAlpha, the pink rectangle changes to white, while I expected it to remain pink because I haven’t overriden the fill: [image] I still want to stack my default paint first a…

The first patch that I sent you is the best solution for your original question in the other thread. You said you want to leverage the feature of the stackability of paints, where you can build your default and based on that a user can put something below. I can see that you don’t like the fact t…

I am okay with Skia nodes provided by VVVV to keep the default for Paint they have right now, but what I want is to have different defaults for my own wrapper nodes. My use-case is that I am treating Process Nodes as UI components and I want to have sane defaults for my components. For example I ha…

I have edited my previous comment. It’d make more sense now, please reread it if you have read it earlier.

Sorrily this appraoch doesn’t work, as the skia paints on the second and third input have unconnected inputs and as of now build complete new paints, based on the systemwide default paint. Building a Combine node would involve to rework the paint itself, so that it collects all the changes with reg…

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Ability to concatenate SkiaPaints

vvvv gamma feature

ajitid April 1, 2025, 4:51pm 11

I understand. Thanks again for the input gregsn!

How do I mix my SkiaPaint before a user's passed paint in a Process Node?