Fx Brush Spreading - some issues

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Mabouh
Posts: 54
Joined: 30 May 2012, 10:28

Fx Brush Spreading - some issues

Post by Mabouh »

Hi everyone,

I'm now doing some tests with the amazing Brush Spreading effect.
I've been talking with Fabrice and Elodie about this already, but I thought this could help other people so I'm posting it here ;)

I'm working on the TVPaint version 11.0.3 - 64 bits - Windows

Here a my issues :

1. Some satured colors appear from time to time (Screenshot below).
I have to precise it's generally appearing when I apply the Brush Spreading on the second time, not first time.
1_459998BrushSpreadingcolor.jpg
1_459998BrushSpreadingcolor.jpg (91.73 KiB) Viewed 15839 times
2. Since I've updated my version to 11.0.3, I can apply the Brush in a specific direction, but I now I can't get back to a random angle brush application
I've tried to change all the parameters, unsuccessfully.

"Directionnal" brush application
2_871946BrushSpreadingdirection.jpg
"Random" brush application (I managed to do this one by changing my original animated brush, I rotated manually some images)
3_294518BrushSpreadingrandom.jpg
3_294518BrushSpreadingrandom.jpg (86.13 KiB) Viewed 15839 times
My current parameters
4_586385BrushSpreadingparameters.jpg
4_586385BrushSpreadingparameters.jpg (72.64 KiB) Viewed 15839 times
3. When the "diffusion interne" (don't know the english term) is not high enough, the FX applies letting a "square" appearing :
5_576676BrushSpreadingsquare.jpg
5_576676BrushSpreadingsquare.jpg (95.63 KiB) Viewed 15839 times
6_437394BrushSpreadingsquare1.jpg
Thanks in advance for your answers :)
Adn thanks again to the team for this great Fx tool that is helping us so much to reach the kind of texture effect we're looking for on our current project !
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Fabrice
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Re: Fx Brush Spreading - some issues

Post by Fabrice »

1. Some satured colors appear from time to time (Screenshot below).
I have to precise it's generally appearing when I apply the Brush Spreading on the second time, not first time.
This problem is pretty hard to fix as it is not linked to the FX itself but to the way calculations are done with TVPaint, with the processor + the color management, etc.
It will not be fixed in the current engine. But maybe tweaking the settings might more or less fix the issue.

- - - - -

For the other ones, Eric might help.
Fabrice Debarge
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Fabrice
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Re: Fx Brush Spreading - some issues

Post by Fabrice »

3. When the "diffusion interne" (don't know the english term) is not high enough, the FX applies letting a "square" appearing :
not a bug. just increase the value of the parameter.
Fabrice Debarge
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Mabouh
Posts: 54
Joined: 30 May 2012, 10:28

Re: Fx Brush Spreading - some issues

Post by Mabouh »

Fabrice wrote:
3. When the "diffusion interne" (don't know the english term) is not high enough, the FX applies letting a "square" appearing :
not a bug. just increase the value of the parameter.
Thanks Fabrice, I see. I asked the question because as I read this thread : http://forum.tvpaint.com/viewtopic.php? ... ing#p87284, I thought it would work differently (with a sort of fade).
Maybe I'm not using the right parameters but I didn't managed to get this result... (There's a link to a video Elodie had made but it's available anymore unfortunately)

Maybe you can see what I'm doing wrong :
7_300422BrushSpreadingangle.jpg
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Fabrice
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Re: Fx Brush Spreading - some issues

Post by Fabrice »

hello,
I miss the brush used, its size and the second tab of the FX
Maybe can you post the .tvpp so I can look at it and see what is wrong ?
Fabrice Debarge
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Fabrice
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Re: Fx Brush Spreading - some issues

Post by Fabrice »

2. Since I've updated my version to 11.0.3, I can apply the Brush in a specific direction, but I now I can't get back to a random angle brush application
I've tried to change all the parameters, unsuccessfully.
indeed, it looks like a bug.

More informations tomorrow.
Fabrice Debarge
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Fabrice
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Re: Fx Brush Spreading - some issues

Post by Fabrice »

Mabouh wrote: Thanks Fabrice, I see. I asked the question because as I read this thread : http://forum.tvpaint.com/viewtopic.php? ... ing#p87284, I thought it would work differently (with a sort of fade).
Maybe I'm not using the right parameters but I didn't managed to get this result... (There's a link to a video Elodie had made but it's available anymore unfortunately)

Maybe you can see what I'm doing wrong :
7_300422BrushSpreadingangle.jpg
Hello, sorry for the late answer, the school semester is starting and we have less time. I didn't notice it immediately :
Change the spreading angle from 89° to 360°.
if the brush is big and at size = 100% , you can also tweak it's profile.
Fabrice Debarge
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