### Author Topic: Is there a video course for Dynamic functions?  (Read 2177 times)

#### bugajskimaciek

I've been looking lately for a video course for Dynamic functions from basics, i've found a couple of videos on allegorythmics yt channel, and in thoose vidoes letor mentions that he is going to elaborate on the subject. Is there any course available online for that topic?

#### Wes McDermott

I've been looking lately for a video course for Dynamic functions from basics, i've found a couple of videos on allegorythmics yt channel, and in thoose vidoes letor mentions that he is going to elaborate on the subject. Is there any course available online for that topic?

Hi,

We don't currently have a specific course on dynamic functions. As you mentioned, we cover there in the SD series at various points. Do you have any specific questions? I'd be happy to help.

Cheers,

Wes
Head of Substance Demo Art Team

#### bugajskimaciek

Hi Wes

Actually im looking for the overview of whole concept, i kinda understand most of the concepts and at the same time i understand nothing it just didnt clicked for me

I've started to look into it to lock up two or more float expressions(, in different nodes,) together, e.g. x and y amount in tile sampler with blur amount. (To ensure that when pattern is smaller, output i less blurred)

Though I havent found an anwser,but I've realised how badly i need to comprehend that side of SD

Edit: my background is in Mari and digital/traditional painting so it is difficult for me to break trough to thoose kind of nodes
Last Edit: November 06, 2015, 05:06:26 pm

#### Wes McDermott

Hi Wes

Actually im looking for the overview of whole concept, i kinda understand most of the concepts and at the same time i understand nothing it just didnt clicked for me

I've started to look into it to lock up two or more float expressions(, in different nodes,) together, e.g. x and y amount in tile sampler with blur amount. (To ensure that when pattern is smaller, output i less blurred)

Though I havent found an anwser,but I've realised how badly i need to comprehend that side of SD

Edit: my background is in Mari and digital/traditional painting so it is difficult for me to break trough to thoose kind of nodes

Hi,

I think a good way to think of when to use functions is when you need to drive a parameter by another or a user-defined control. Functions can get really complex, but I think its best to think of them in their most basic form to begin.

When you expose a parameter you are actually creating a function. The function is very simple in that it points a parameter to a user defined controller such as a slider or button. I tend to use functions mainly when I need to create a user controlled parameter. For example, if I want to clamp a float variable's values to the 0-1 range of a slider, I will use a linear interpolation node. You can see this in the attached image. In this example, I am modifying the function of an exposed parameter so that it fits within a specific range.

A more complex use of functions are with FX-Maps and the Pixel Processor. Check out these videos to see how functions are used in this context.

Cheers,
Wes

Head of Substance Demo Art Team