Creating a brush question

[Svengali]

If I could control how it randomizes a single brush image, it would mean that I never have to make an anim brush at all, unless I wanted each and every stamp to be totally different. Controlling the anim could mean to rotate it only around one side, so 180 degrees, or 90 degrees, so that it is just turning a little, but randomly.

If I understood your request well, I think you can already :
http://www.tvpaint.com/doc/tvp11/index. ... es&lang=en" onclick="window.open(this.href);return false;
check the "Angle and Random" chapter on this webpage.

pick-one options for Angle.jpg (8.73 KiB) Viewed 14010 times

Maybe this is the problem/limitation?

For each parameter assigned to a custom brush you can only choose ONE MODE. I think the problem you run into when trying to create this kind of pseudo, randomly textured brush is that you need to assign ANGLE to have TWO different MODES at the same time:

1. first, you need to assign the DIRECTION MODE to the ANGLE parameter so the brush texture will always turn to follow the direction of the path that the brush is traveling.
2. But you also need to assign the RANDOM MODE to the ANGLE parameter as well because you want the texture to twist randomly to either side of the brush stroke path (limiting the range of the twisting arc is controlled by the curve in the profile editor for the ANGLE parameter.)

In the case of a randomly rotating brush texture, you can compensate somewhat for this "either/or" limitation in how parameters are assigned by:

1. using the DIRECTION MODE for the ANGLE parameter... and then
2. creating an ANIMBRUSH with a number of rotated texture steps in it AND make the ANIM setting RANDOM. I think this is what David was attempting. Perhaps his perplexity comes from the limitation that the ANGLE parameter can only have one MODE assigned to it.

[Sewie]

... I think the problem you run into when trying to create this kind of pseudo, randomly textured brush is that you need to assign ANGLE to have TWO different MODES at the same time...

The option to assign properties to two different modes would increase the overall possibilities for custombrushes exponentially. I really hoping that this can be done within the current engine.

[slowtiger]

I'd really like the idea of a range for certain parameters a lot. "Rotate between 0 and 45, by random/pressure/whatever".

[neonnoodle]

I'd really like the idea of a range for certain parameters a lot. "Rotate between 0 and 45, by random/pressure/whatever".

I believe some of what you are asking is possible via the profile editor -- constrain the graph to a range of points. It is not intuitive but I think it achieves the result you want.

[David_Fine]

Yes, this is a great tip! I did not think to check the profile editor to restrict the turning radius of the brush in random. That does work, so that is great news. Still, Svengali explains it further in regard to the detail which would be good, but certainly, this addresses my specific request, so I am glad to have this pointed out. Now all that's missing is for the stepping to be controllable when you reduce the brush size. Or at least I assume that's the only thing causing the brush to change quality as it gets smaller. Hey, that must be a pretty easy fix!

[Fabrice]

As we use to say in french : I come after the battle.
But does this help ?
There is more consistensy in the line transparency whatever the pressure level is.

Dave_animbrush_test.png (121.11 KiB) Viewed 13913 times