[ANN] This Week in LiveCode 82

hh hh at hyperhh.de
Mon May 15 15:21:11 EDT 2017

> Mark W. wrote:
> > and most of these legacy Blend Modes:
> > clear, noop, notSrcAnd, notSrcAndReverse,
> > notSrcCopy, notSrcOr, notSrcOrReverse,
> > notSrcXor, reverse, set, srcAnd,
> > srcAndReverse, srcCopy, srcOr,
> > srcOrReverse, srcXor, blend, addPin
> > addOver, subPin, transparent
> > adMin, addMax

> We're still on the fency about all of these - I do wonder how
> much they are used anymore particularly as they do not fit into
> the RGBA rendering model which everyone uses anymore and as such
> are incredibly inefficient. (They will never be acceleratable,
> for example).

> I'd be surprised if people couldn't get similar effects by using
> appropriate blend inks - if they are still in use at all.

> Ali L. wrote:
> To be fair, the docs claim the legacy blend modes have been deprecated
> since LC 5! We've supported them for quite a long time post-deprecation...

1. Please read this twice and don't cry ...

The default blendLevel of each and every LC object that has an ink is
"srcCopy" --- 'incredibly inefficient' as you judge it.

2. How do you define a "similar" effect?
3. Please tell me for example which "similar" blend effect allows a dark
   theme in the script editor which is currently simly done by setting the
   fields ink to "notSrcCopy".

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