Re: [ANN] This Week in LiveCode 82

[Mark Waddingham via use-livecode]

On 2017-05-16 14:51, hh via use-livecode wrote:

Yes, thanks. [You did probably test on Mac only. It's not worth to mix
in the problem of linux (and Raspi) with blend modes/transparency 
here.]


I don't recall seeing any bug reports about inks/transparency on Linux -
could you elaborate?


Anyway, I updated my stack to a simple Theme-switcher, usable as tiny
plugin and included it to post RaspberryPi stacks #89
( http://forums.livecode.com/viewtopic.php?p=150402#p150402 ).

I find it more comfortable (what the stack does by one click) to simply
reverse all current settings of the prefs for theme and background by
setting the blend modes. That's pretty fast and one can use it for each
script editor window differently dark or light: incredibly efficient 
;-)


In terms of number of lines of code to achieve the effect, perhaps - but
not for the poor CPU...

Any control which has an ink other than srcCopy has to be rendered into
an offscreen buffer before it can be composited into the parent. So,
technically, the CPU would be happier if the colors used in the first
place were just inverted ;)

Warmest Regards,

Mark.

--
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LiveCode: Everyone can create apps

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Re: [ANN] This Week in LiveCode 82

[hh via use-livecode]

Yes, thanks. [You did probably test on Mac only. It's not worth to mix
in the problem of linux (and Raspi) with blend modes/transparency here.]

Anyway, I updated my stack to a simple Theme-switcher, usable as tiny 
plugin and included it to post RaspberryPi stacks #89
( http://forums.livecode.com/viewtopic.php?p=150402#p150402 ).

I find it more comfortable (what the stack does by one click) to simply
reverse all current settings of the prefs for theme and background by
setting the blend modes. That's pretty fast and one can use it for each
script editor window differently dark or light: incredibly efficient ;-)

> Okay so - I take it the current approach is:
> 
>edit script of stack "revmenubar"
>set the ink of field "Script" of stack "revNewScriptEditor 1" to 
> "notSrcCopy"
> 
> Which gives the exact same effect as:
> 
>set the ink of field "Script" of stack "revNewScriptEditor 1" to 
>"blendDifference"
> 
> As far as I can see, anyway...
> 
> However a better effect (due to the way drawing works, transparency, 
> antialiasing and
> such like) is to actually set the colors of the field. i.e.
> 
>- backgroundColor black (inverse of white)
>- each color assigned to the colorization inverted in the same way
> 
> The former is directly configurable in preferences; the latter current 
> has three
> fixed modes also configurable in preferences (none, default, classic). 
> The colorization
> 'schemes' are defined in the seColorizationLoadScheme handler in the
> revseutilitiesbehavior.livecodescript file:
> 
>  b633a07eddc577887b94bd09cbc2d4ef4f50f4be/Toolset/palettes/
> script%20editor/behaviors/revsestackbehavior.livecodescript>
> 
> These are easy to add to - or better yet, a little dialog in preferences 
> which allows
> you to add / remove them would be cool.
> 
> Warmest Regards,
> 
> Mark.

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Re: [ANN] This Week in LiveCode 82

[Mark Waddingham via use-livecode]

On 2017-05-15 21:11, Roger Eller via use-livecode wrote:

I just looked in the dictionary of 6.7.5 (my daily driver), and only
srcCopy concerns me, as it is the default for any image placed as a
control.  I also found an image that I had placed with addMax applied.
This saved me the trouble of taking it into Photoshop of Gimp to create 
the

same effect.  I'll roll with the changes.


As I said elsewhere, srcCopy is the same as blendSrcOver and only has
a distinction when it is applied to a group.

In terms of the others, there are effects you can get with the 'legacy' 
inks
and it is useful to file those uses with us so we can see what they are 
and

how to add replacements.

In the case of things applied to images, a general convolve/colormatrix 
type
property would probably give much more flexibility - and fit in much 
better
with the 'graphics pipelines' of today (rather than those of the 
1980's).


Warmest Regards,

Mark.

--
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LiveCode: Everyone can create apps

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Re: [ANN] This Week in LiveCode 82

[Mark Waddingham via use-livecode]

On 2017-05-15 21:21, hh via use-livecode wrote:

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".


Okay so - I take it the current approach is:

  edit script of stack "revmenubar"
  set the ink of field "Script" of stack "revNewScriptEditor 1" to 
"notSrcCopy"


Which gives the exact same effect as:

  set the ink of field "Script" of stack "revNewScriptEditor 1" to 
"blendDifference"


As far as I can see, anyway...

However a better effect (due to the way drawing works, transparency, 
antialiasing and

such like) is to actually set the colors of the field. i.e.

  - backgroundColor black (inverse of white)
  - each color assigned to the colorization inverted in the same way

The former is directly configurable in preferences; the latter current 
has three
fixed modes also configurable in preferences (none, default, classic). 
The colorization

'schemes' are defined in the seColorizationLoadScheme handler in the
revseutilitiesbehavior.livecodescript file:



These are easy to add to - or better yet, a little dialog in preferences 
which allows

you to add / remove them would be cool.

Warmest Regards,

Mark.

--
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LiveCode: Everyone can create apps

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Re: [ANN] This Week in LiveCode 82

[Mark Waddingham via use-livecode]

On 2017-05-15 22:05, Richmond Mathewson via use-livecode wrote:

"the modern era"

Ah; such an awful pity that both Thee and Me have more important things 
to do;


we could have such fun playing "semantic squash".


Hehe - indeed, modern should have been 'modern'* with:

* 'Modern' in the context of the evolution of the way 2d graphics is
  expressed in computing. It has gone from pixel-oriented bitwise
  operations; to color-oriented transparent blending operations.

;)

Warmest Regards,

Mark.

--
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LiveCode: Everyone can create apps

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Re: [ANN] This Week in LiveCode 82

[Mark Waddingham via use-livecode]

On 2017-05-15 23:22, Alejandro Tejada via use-livecode wrote:

This Skia feature named: Perlin Noise Shader
could have this syntax:

set the fractalperlinNoise of selobj to "0.05, 0.05, 4, 0.0"
set the turbulenceperlinNoise of selobj to "0.05, 0.05, 4, 0.0"

This Skia feature named: Blur Mask Filter
could have this syntax:

set the blur of selobj to 5
set the hqblur of selobj to 10



I'd actually suggest that filters should be a list / array - you need
to be able to specify the order.

Indeed, the general model is that filters are applied after the control
is rasterized but before its rasterized buffer (with transparency) is
composited into the parent.

The bitmapEffects we currently have are filters - they do have a 
prescribed
order (as they were modelled on PhotoShop's - which at the time fixed 
the

order, I'm not sure whether that has changed); but in reality there is
use in them being reorderable and to allow multiple applications of the 
same
kind (for example you might want two dropshadows with different 
displacement).



This Skia feature named: SkMatrix
could have this syntax:

set the perspective of selobj to "1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 
0, 0,

0, 0"


A perspective transform is a generalization of an affine transform 
(indeed,

I'd suggest transform, not perspective as the future property) - affine
transforms (2x3 matrices) extend to pseudo-perspective transforms (3x3) 
extend
to 3d transforms (4x4) by simple extension of the matrix (putting 1's 
and 0's

in the appropraite places).

However, there is a lot of difficulty involved in getting transforms to 
work
in Livecode (as has been discussed before) due to the way co-ordinates 
are
handled - they are always card-relative and are currently integers in 
the
engine - which makes things somewhat tricky. It would be nice to have 
though :)


Warmest Regards,

Mark.

--
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LiveCode: Everyone can create apps

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[ANN] This Week in LiveCode 82

[Alejandro Tejada via use-livecode]

Richmond wrote:
> "the modern era"
> Ah; such an awful pity that both Thee and Me
> have more important things to do;
> we could have such fun playing
> "semantic squash".

Ok, lets play!
but check this webpage before starting:
https://skia.org/user/api/skpaint

This Skia feature named: Perlin Noise Shader
could have this syntax:

set the fractalperlinNoise of selobj to "0.05, 0.05, 4, 0.0"
set the turbulenceperlinNoise of selobj to "0.05, 0.05, 4, 0.0"

This Skia feature named: Blur Mask Filter
could have this syntax:

set the blur of selobj to 5
set the hqblur of selobj to 10

This Skia feature named: SkMatrix
could have this syntax:

set the perspective of selobj to "1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0,
0, 0"

:D
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Re: [ANN] This Week in LiveCode 82

[hh via use-livecode]

> Mark W. wrote:
> SrcCopy is identical to blendSrcOver - the latter is its alpha-aware
> counterpart. The engine makes no distinction between the two - except
> on groups where it determines if the group should be rendered first
> and then composited (blendSrcOver), or if its children should be
> directly composites into the group's parent. That won't change.
> 
> In terms of notSrcCopy then there are other blends which do a similar
> thing - although in that specific case I'd suggest perhaps letting
> users set colours in the script editor would be a better approach ;)

I personally tried since months to use where possible blend modes because
of the "deprecated" mark in the dictionary and your and Ali's discussions
on github. But very often the wanted effect was not achievable with other
modes than the bitmapped ones.

The script editor theme was a discussion here some time before: Simply
try colour-setting-methods and compare to setting the ink to "notSrcCopy"
(what is nothing else than choosing colours by choosing the "reversed"
theme to user's current "light" choice in the preferences).

Also setting simply the ink is up to ten times _faster_ for long scripts
(because it uses still the compiled(?) engine colouring).
And the _same_ effect is NOT achievable, also not a 'medium similar' one,
with a non-bitmap ink. I tried ALL other currently available modes.

I have a big problem with accepting your 'a similar effect is available'
statement, that's too lax -- for example red is similar to blue and green
(because they have the same rgb items).

Some demos for 'the SAME effect is available' would be more convincing.

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Re: [ANN] This Week in LiveCode 82

[Richmond Mathewson via use-livecode]

"the modern era"

Ah; such an awful pity that both Thee and Me have more important things 
to do;


we could have such fun playing "semantic squash".

Best, Richmond.

On 5/15/17 10:50 pm, Mark Waddingham via use-livecode wrote:

In this case it means when you take into account the number of global uses of 
the (now in the modern era) non-standard inks / blend modes we provide... Does 
that percentage justify the reimplementation effort and continued maintenance 
(particularly when they have been explicitly deprecated for years) when it 
could be used on more widely usable things :)

Mark.

Sent from my iPhone


On 15 May 2017, at 20:24, Richmond Mathewson via use-livecode 
 wrote:

What does that word "fair" mean? I have always wondered whether
it isn't a bit like "luck", something nebulous (c.f. "rights") to cover up
a multitude of rather more difficult ideas.

Richmond.


On 5/15/17 10:01 pm, Ali Lloyd via use-livecode wrote:
To be fair, the docs claim the legacy blend modes have been deprecated
since LC 5! We've supported thm for quite a long time post-deprecation...

On Mon, May 15, 2017 at 7:56 PM Roger Eller via use-livecode <
use-livecode@lists.runrev.com> wrote:


Oh no!  I use the legacy blendModes all the time!


On Mon, May 15, 2017 at 2:40 PM, Alejandro Tejada via use-livecode <
use-livecode@lists.runrev.com> wrote:


Read about new developments in LiveCode open source
and the open source community in today's edition of
the "This Week in LiveCode" newsletter!
Read issue #82 here: https://goo.gl/8HNhau

Looks like Skia Graphics Library dropped support
for some features and LC9 will not show anymore
these types of gradients:
'XY', 'SqrtXY', 'Diamond' and 'Spiral'
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

If you check all paint features available
from Skia Library: https://skia.org/user/api/skpaint
there are many useful features that LC9
could implement, like:
setTextScaleX (and setTextScaleY)
SkPathEffect
SkLine2DPathEffect
SkDiscretePathEffect
SkComposePathEffect
SkSumPathEffect
Two-Point Conical Gradient Shader
Fractal Perlin Noise Shader
Turbulence Perlin Noise Shader
Compose Shader
Blur Mask Filter

Could LC implement first some of
these Skia features like Perlin Noise
and Blur filter?

Al
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Re: [ANN] This Week in LiveCode 82

[Mark Waddingham via use-livecode]

In this case it means when you take into account the number of global uses of 
the (now in the modern era) non-standard inks / blend modes we provide... Does 
that percentage justify the reimplementation effort and continued maintenance 
(particularly when they have been explicitly deprecated for years) when it 
could be used on more widely usable things :)

Mark.

Sent from my iPhone

> On 15 May 2017, at 20:24, Richmond Mathewson via use-livecode 
>  wrote:
> 
> What does that word "fair" mean? I have always wondered whether
> it isn't a bit like "luck", something nebulous (c.f. "rights") to cover up
> a multitude of rather more difficult ideas.
> 
> Richmond.
> 
>> On 5/15/17 10:01 pm, Ali Lloyd via use-livecode wrote:
>> To be fair, the docs claim the legacy blend modes have been deprecated
>> since LC 5! We've supported thm for quite a long time post-deprecation...
>> 
>> On Mon, May 15, 2017 at 7:56 PM Roger Eller via use-livecode <
>> use-livecode@lists.runrev.com> wrote:
>> 
>>> Oh no!  I use the legacy blendModes all the time!
>>> 
>>> 
>>> On Mon, May 15, 2017 at 2:40 PM, Alejandro Tejada via use-livecode <
>>> use-livecode@lists.runrev.com> wrote:
>>> 
> Read about new developments in LiveCode open source
> and the open source community in today's edition of
> the "This Week in LiveCode" newsletter!
> Read issue #82 here: https://goo.gl/8HNhau
 Looks like Skia Graphics Library dropped support
 for some features and LC9 will not show anymore
 these types of gradients:
 'XY', 'SqrtXY', 'Diamond' and 'Spiral'
 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
 
 If you check all paint features available
 from Skia Library: https://skia.org/user/api/skpaint
 there are many useful features that LC9
 could implement, like:
 setTextScaleX (and setTextScaleY)
 SkPathEffect
 SkLine2DPathEffect
 SkDiscretePathEffect
 SkComposePathEffect
 SkSumPathEffect
 Two-Point Conical Gradient Shader
 Fractal Perlin Noise Shader
 Turbulence Perlin Noise Shader
 Compose Shader
 Blur Mask Filter
 
 Could LC implement first some of
 these Skia features like Perlin Noise
 and Blur filter?
 
 Al
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Re: [ANN] This Week in LiveCode 82

[Mark Waddingham via use-livecode]

SrcCopy is identical to blendSrcOver - the latter is its alpha-aware 
counterpart. The engine makes no distinction between the two - except on groups 
where it determines if the group should be rendered first and then composited 
(blendSrcOver), or if its children should be directly composites into the 
group's parent.

That won't change.

In terms of notSrcCopy then there are other blends which do a similar thing - 
although in that specific case I'd suggest perhaps letting users set colours in 
the script editor would be a better approach ;)

Mark.

Sent from my iPhone

On 15 May 2017, at 20:21, hh via use-livecode  
wrote:

>> 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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Re: [ANN] This Week in LiveCode 82

[Richmond Mathewson via use-livecode]

What does that word "fair" mean? I have always wondered whether
it isn't a bit like "luck", something nebulous (c.f. "rights") to cover up
a multitude of rather more difficult ideas.

Richmond.

On 5/15/17 10:01 pm, Ali Lloyd via use-livecode wrote:

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

On Mon, May 15, 2017 at 7:56 PM Roger Eller via use-livecode <
use-livecode@lists.runrev.com> wrote:


Oh no!  I use the legacy blendModes all the time!


On Mon, May 15, 2017 at 2:40 PM, Alejandro Tejada via use-livecode <
use-livecode@lists.runrev.com> wrote:


Read about new developments in LiveCode open source
and the open source community in today's edition of
the "This Week in LiveCode" newsletter!
Read issue #82 here: https://goo.gl/8HNhau

Looks like Skia Graphics Library dropped support
for some features and LC9 will not show anymore
these types of gradients:
'XY', 'SqrtXY', 'Diamond' and 'Spiral'
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

If you check all paint features available
from Skia Library: https://skia.org/user/api/skpaint
there are many useful features that LC9
could implement, like:
setTextScaleX (and setTextScaleY)
SkPathEffect
SkLine2DPathEffect
SkDiscretePathEffect
SkComposePathEffect
SkSumPathEffect
Two-Point Conical Gradient Shader
Fractal Perlin Noise Shader
Turbulence Perlin Noise Shader
Compose Shader
Blur Mask Filter

Could LC implement first some of
these Skia features like Perlin Noise
and Blur filter?

Al
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Re: [ANN] This Week in LiveCode 82

[Richmond Mathewson via use-livecode]

So do I!

Richmond.

On 5/15/17 9:56 pm, Roger Eller via use-livecode wrote:

Oh no!  I use the legacy blendModes all the time!


On Mon, May 15, 2017 at 2:40 PM, Alejandro Tejada via use-livecode <
use-livecode@lists.runrev.com> wrote:


Read about new developments in LiveCode open source
and the open source community in today's edition of
the "This Week in LiveCode" newsletter!
Read issue #82 here: https://goo.gl/8HNhau

Looks like Skia Graphics Library dropped support
for some features and LC9 will not show anymore
these types of gradients:
'XY', 'SqrtXY', 'Diamond' and 'Spiral'
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

If you check all paint features available
from Skia Library: https://skia.org/user/api/skpaint
there are many useful features that LC9
could implement, like:
setTextScaleX (and setTextScaleY)
SkPathEffect
SkLine2DPathEffect
SkDiscretePathEffect
SkComposePathEffect
SkSumPathEffect
Two-Point Conical Gradient Shader
Fractal Perlin Noise Shader
Turbulence Perlin Noise Shader
Compose Shader
Blur Mask Filter

Could LC implement first some of
these Skia features like Perlin Noise
and Blur filter?

Al
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Re: [ANN] This Week in LiveCode 82

[hh via use-livecode]

> 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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Re: [ANN] This Week in LiveCode 82

[Richard Gaskin via use-livecode]

Mark Waddingham wrote:

On 2017-05-15 20:40, Alejandro Tejada via use-livecode wrote:


Looks like Skia Graphics Library dropped support
for some features and LC9 will not show anymore
these types of gradients:
'XY', 'SqrtXY', 'Diamond' and 'Spiral'


These are back in - Michael managed to get them working again.


Good to hear, thanks.


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.


I use some of those inks - glad to hear they're still working.

But help me understand: if not ink, what LC property was Alejandro 
referring to?


--
 Richard Gaskin
 Fourth World Systems
 Software Design and Development for the Desktop, Mobile, and the Web
 
 ambassa...@fourthworld.comhttp://www.FourthWorld.com

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Re: [ANN] This Week in LiveCode 82

[Roger Eller via use-livecode]

I just looked in the dictionary of 6.7.5 (my daily driver), and only
srcCopy concerns me, as it is the default for any image placed as a
control.  I also found an image that I had placed with addMax applied.
This saved me the trouble of taking it into Photoshop of Gimp to create the
same effect.  I'll roll with the changes.

~Roger


On Mon, May 15, 2017 at 3:01 PM, Ali Lloyd via use-livecode <
use-livecode@lists.runrev.com> wrote:

> To be fair, the docs claim the legacy blend modes have been deprecated
> since LC 5! We've supported thm for quite a long time post-deprecation...
>
> On Mon, May 15, 2017 at 7:56 PM Roger Eller via use-livecode <
> use-livecode@lists.runrev.com> wrote:
>
> > Oh no!  I use the legacy blendModes all the time!
> >
> >
> > On Mon, May 15, 2017 at 2:40 PM, Alejandro Tejada via use-livecode <
> > use-livecode@lists.runrev.com> wrote:
> >
> > > > Read about new developments in LiveCode open source
> > > > and the open source community in today's edition of
> > > > the "This Week in LiveCode" newsletter!
> > > > Read issue #82 here: https://goo.gl/8HNhau
> > >
> > > Looks like Skia Graphics Library dropped support
> > > for some features and LC9 will not show anymore
> > > these types of gradients:
> > > 'XY', 'SqrtXY', 'Diamond' and 'Spiral'
> > > 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
> > >
> > > If you check all paint features available
> > > from Skia Library: https://skia.org/user/api/skpaint
> > > there are many useful features that LC9
> > > could implement, like:
> > > setTextScaleX (and setTextScaleY)
> > > SkPathEffect
> > > SkLine2DPathEffect
> > > SkDiscretePathEffect
> > > SkComposePathEffect
> > > SkSumPathEffect
> > > Two-Point Conical Gradient Shader
> > > Fractal Perlin Noise Shader
> > > Turbulence Perlin Noise Shader
> > > Compose Shader
> > > Blur Mask Filter
> > >
> > > Could LC implement first some of
> > > these Skia features like Perlin Noise
> > > and Blur filter?
> > >
> > > Al
> > > ___
> > > use-livecode mailing list
> > > use-livecode@lists.runrev.com
> > > Please visit this url to subscribe, unsubscribe and manage your
> > > subscription preferences:
> > > http://lists.runrev.com/mailman/listinfo/use-livecode
> > >
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> > Please visit this url to subscribe, unsubscribe and manage your
> > subscription preferences:
> > http://lists.runrev.com/mailman/listinfo/use-livecode
> >
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> subscription preferences:
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Re: [ANN] This Week in LiveCode 82

[Ali Lloyd via use-livecode]

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

On Mon, May 15, 2017 at 7:56 PM Roger Eller via use-livecode <
use-livecode@lists.runrev.com> wrote:

> Oh no!  I use the legacy blendModes all the time!
>
>
> On Mon, May 15, 2017 at 2:40 PM, Alejandro Tejada via use-livecode <
> use-livecode@lists.runrev.com> wrote:
>
> > > Read about new developments in LiveCode open source
> > > and the open source community in today's edition of
> > > the "This Week in LiveCode" newsletter!
> > > Read issue #82 here: https://goo.gl/8HNhau
> >
> > Looks like Skia Graphics Library dropped support
> > for some features and LC9 will not show anymore
> > these types of gradients:
> > 'XY', 'SqrtXY', 'Diamond' and 'Spiral'
> > 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
> >
> > If you check all paint features available
> > from Skia Library: https://skia.org/user/api/skpaint
> > there are many useful features that LC9
> > could implement, like:
> > setTextScaleX (and setTextScaleY)
> > SkPathEffect
> > SkLine2DPathEffect
> > SkDiscretePathEffect
> > SkComposePathEffect
> > SkSumPathEffect
> > Two-Point Conical Gradient Shader
> > Fractal Perlin Noise Shader
> > Turbulence Perlin Noise Shader
> > Compose Shader
> > Blur Mask Filter
> >
> > Could LC implement first some of
> > these Skia features like Perlin Noise
> > and Blur filter?
> >
> > Al
> > ___
> > use-livecode mailing list
> > use-livecode@lists.runrev.com
> > Please visit this url to subscribe, unsubscribe and manage your
> > subscription preferences:
> > http://lists.runrev.com/mailman/listinfo/use-livecode
> >
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> subscription preferences:
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Re: [ANN] This Week in LiveCode 82

[Roger Eller via use-livecode]

Oh no!  I use the legacy blendModes all the time!


On Mon, May 15, 2017 at 2:40 PM, Alejandro Tejada via use-livecode <
use-livecode@lists.runrev.com> wrote:

> > Read about new developments in LiveCode open source
> > and the open source community in today's edition of
> > the "This Week in LiveCode" newsletter!
> > Read issue #82 here: https://goo.gl/8HNhau
>
> Looks like Skia Graphics Library dropped support
> for some features and LC9 will not show anymore
> these types of gradients:
> 'XY', 'SqrtXY', 'Diamond' and 'Spiral'
> 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
>
> If you check all paint features available
> from Skia Library: https://skia.org/user/api/skpaint
> there are many useful features that LC9
> could implement, like:
> setTextScaleX (and setTextScaleY)
> SkPathEffect
> SkLine2DPathEffect
> SkDiscretePathEffect
> SkComposePathEffect
> SkSumPathEffect
> Two-Point Conical Gradient Shader
> Fractal Perlin Noise Shader
> Turbulence Perlin Noise Shader
> Compose Shader
> Blur Mask Filter
>
> Could LC implement first some of
> these Skia features like Perlin Noise
> and Blur filter?
>
> Al
> ___
> use-livecode mailing list
> use-livecode@lists.runrev.com
> Please visit this url to subscribe, unsubscribe and manage your
> subscription preferences:
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Re: [ANN] This Week in LiveCode 82

[Mark Waddingham via use-livecode]

On 2017-05-15 20:40, Alejandro Tejada via use-livecode wrote:

Read about new developments in LiveCode open source
and the open source community in today's edition of
the "This Week in LiveCode" newsletter!
Read issue #82 here: https://goo.gl/8HNhau


Looks like Skia Graphics Library dropped support
for some features and LC9 will not show anymore
these types of gradients:
'XY', 'SqrtXY', 'Diamond' and 'Spiral'


These are back in - Michael managed to get them working again.


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.


If you check all paint features available
from Skia Library: https://skia.org/user/api/skpaint
there are many useful features that LC9
could implement, like:
setTextScaleX (and setTextScaleY)
SkPathEffect
SkLine2DPathEffect
SkDiscretePathEffect
SkComposePathEffect
SkSumPathEffect
Two-Point Conical Gradient Shader
Fractal Perlin Noise Shader
Turbulence Perlin Noise Shader
Compose Shader
Blur Mask Filter

Could LC implement first some of
these Skia features like Perlin Noise
and Blur filter?


Our first aim is to get the new Skia in and working as much as it
did before :)

Warmest Regards,

Mark.

--
Mark Waddingham ~ m...@livecode.com ~ http://www.livecode.com/
LiveCode: Everyone can create apps

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[ANN] This Week in LiveCode 82

[Alejandro Tejada via use-livecode]

> Read about new developments in LiveCode open source
> and the open source community in today's edition of
> the "This Week in LiveCode" newsletter!
> Read issue #82 here: https://goo.gl/8HNhau

Looks like Skia Graphics Library dropped support
for some features and LC9 will not show anymore
these types of gradients:
'XY', 'SqrtXY', 'Diamond' and 'Spiral'
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

If you check all paint features available
from Skia Library: https://skia.org/user/api/skpaint
there are many useful features that LC9
could implement, like:
setTextScaleX (and setTextScaleY)
SkPathEffect
SkLine2DPathEffect
SkDiscretePathEffect
SkComposePathEffect
SkSumPathEffect
Two-Point Conical Gradient Shader
Fractal Perlin Noise Shader
Turbulence Perlin Noise Shader
Compose Shader
Blur Mask Filter

Could LC implement first some of
these Skia features like Perlin Noise
and Blur filter?

Al
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[ANN] This Week in LiveCode 82

[panagiotis merakos via use-livecode]

Hi all,

Read about new developments in LiveCode open source and the open source
community in today's edition of the "This Week in LiveCode" newsletter!

Read issue #82 here: https://goo.gl/8HNhau

This is a weekly newsletter about LiveCode, focussing on what's been
going on in and around the open source project. New issues will be
released weekly on Mondays. We have a dedicated mailing list that will
deliver each issue directly to you e-mail, so you don't miss any!

If you have anything you'd like mentioned (a project, a discussion
somewhere, an upcoming event) then please get in touch.


-- 
Panagiotis Merakos 
LiveCode Software Developer

Everyone Can Create Apps 
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