SUB works like ADD

Modul8 v3 HD beta program

Moderator: Garagecube

SUB works like ADD

Postby pele2010 » Thu Oct 27, 2016 11:52 am

Hi,

since the beta1 I am having the problem, that the "sub blending" mode is not working like it used to be.

If a layer was above another layer and was "sub'ed" it used to subtract information from the layer below.
In the M8 3 Beta it´s adding information to the layer.

So if you feedback loops you can´t play with the "sub" blending mode anymore.
You need to use "exc" but it works different to the "sub" blending mode.

Does someone have the same problems?

best peter
pele2010

Act without doing; work without effort. Think of the small as large and the few as many. Confront the difficult while it is still easy;
accomplish the great task by a series of small acts.
http://www.eachfilm.de /// each01
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pele2010
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Re: SUB works like ADD

Postby Pierre Guilluy » Thu Oct 27, 2016 4:37 pm

Here's the simplest example I could make (testcard as a background and a white square on top) trying to replicate your problem:

ADD

v3
M8_V3_ADD.png
M8_V3_ADD.png (419.01 KiB) Viewed 1091 times


v2
M8_V2_ADD.png
M8_V2_ADD.png (290.2 KiB) Viewed 1091 times


SUB

v3
M8_V3_SUB.png
M8_V3_SUB.png (413.06 KiB) Viewed 1091 times


v2
M8_V2_SUB.png
M8_V2_SUB.png (287.48 KiB) Viewed 1091 times


EXC

v3
M8_V3_EXC.png
M8_V3_EXC.png (424.4 KiB) Viewed 1091 times


v2
M8_V2_EXC.png
M8_V2_EXC.png (296.69 KiB) Viewed 1091 times


I can't see any difference between version 2 and 3 regarding the way the blending mode works.

Couldn't it be some running module that messes with the blending on either version?
Pierre Guilluy
GarageCUBE team
 
Posts: 101
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Re: SUB works like ADD

Postby pele2010 » Thu Oct 27, 2016 5:33 pm

Hi Pierre,

that was always my problem , that my experience differs from the others!

from top to bottom

add
sub
premult
scr
exc

here you can see that only "SCR" and "EXC" are like they used to be ...


ADD_SUB.jpg
ADD_SUB.jpg (43.72 KiB) Viewed 1083 times
pele2010

Act without doing; work without effort. Think of the small as large and the few as many. Confront the difficult while it is still easy;
accomplish the great task by a series of small acts.
http://www.eachfilm.de /// each01
User avatar
pele2010
ultim8 member
 
Posts: 262
Joined: Sat Apr 10, 2010 8:16 pm
Location: Hamburg, Germany

Re: SUB works like ADD

Postby pele2010 » Thu Oct 27, 2016 5:41 pm

and her the screenshots itself

add
add.jpg
add
add.jpg (79.98 KiB) Viewed 1083 times


sub
sub.jpg
sub
sub.jpg (76.92 KiB) Viewed 1083 times


premult
premult.jpg
premult
premult.jpg (78.87 KiB) Viewed 1083 times
pele2010

Act without doing; work without effort. Think of the small as large and the few as many. Confront the difficult while it is still easy;
accomplish the great task by a series of small acts.
http://www.eachfilm.de /// each01
User avatar
pele2010
ultim8 member
 
Posts: 262
Joined: Sat Apr 10, 2010 8:16 pm
Location: Hamburg, Germany

Re: SUB works like ADD

Postby pele2010 » Thu Oct 27, 2016 5:42 pm

and

SCR
SCR.jpg
SCR
SCR.jpg (82.03 KiB) Viewed 1083 times


EXC
EXC.jpg
EXC
EXC.jpg (93.39 KiB) Viewed 1083 times
pele2010

Act without doing; work without effort. Think of the small as large and the few as many. Confront the difficult while it is still easy;
accomplish the great task by a series of small acts.
http://www.eachfilm.de /// each01
User avatar
pele2010
ultim8 member
 
Posts: 262
Joined: Sat Apr 10, 2010 8:16 pm
Location: Hamburg, Germany

Re: SUB works like ADD

Postby pele2010 » Thu Oct 27, 2016 5:44 pm

And the question was:

can it be the graphic card I am using?

Bildschirmfoto 2016-10-27 um 17.44.45.png
Bildschirmfoto 2016-10-27 um 17.44.45.png (44.46 KiB) Viewed 1083 times
pele2010

Act without doing; work without effort. Think of the small as large and the few as many. Confront the difficult while it is still easy;
accomplish the great task by a series of small acts.
http://www.eachfilm.de /// each01
User avatar
pele2010
ultim8 member
 
Posts: 262
Joined: Sat Apr 10, 2010 8:16 pm
Location: Hamburg, Germany

Re: SUB works like ADD

Postby Pierre Guilluy » Mon Oct 31, 2016 11:58 am

Hi Peter,

Thanks for sending the graphic-card model you're using:
I just ran my tests again but forcing the integrated Iris GPU this time instead of the discrete one and I can reproduce your problem.

I will now go through a debug session and let you know.

Pierre
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Posts: 101
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Re: SUB works like ADD

Postby pele2010 » Mon Oct 31, 2016 12:03 pm

Puh,

I thought I was getting crazy ....

thanxs Peter
pele2010

Act without doing; work without effort. Think of the small as large and the few as many. Confront the difficult while it is still easy;
accomplish the great task by a series of small acts.
http://www.eachfilm.de /// each01
User avatar
pele2010
ultim8 member
 
Posts: 262
Joined: Sat Apr 10, 2010 8:16 pm
Location: Hamburg, Germany

Re: SUB works like ADD

Postby Pierre Guilluy » Mon Oct 31, 2016 1:23 pm

I've just check and I have the exact same result using Modul8 2.9.2.

Anyways I've just found the bug and the fix will be available in the next beta!

Pierre
Pierre Guilluy
GarageCUBE team
 
Posts: 101
Joined: Mon Oct 12, 2015 1:50 pm


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