Cusotm Shaders Variables

[George Davies]

Hello,

What are the variables available for custom shaders? Is it possible to add our own / set input ranges and precision?

Regards

George

[Mathieu Lightjams]

Hi,

There's no official doc or support for the shaders of the eye candy effects. However, you can look at the existing shader files located in the folder C:\ProgramData\ELM\shaders. They are text files. You'll see the different variables. You should avoid modifying the existing files and duplicate a file instead and edit this new file.

For the variable name, range and precision, they are fixed. It's up to the shader to rescale the values as needed.

[George Davies]

Hi Mathieu,

Thanks very much for the info. 

For anyone interested theres also this resouce from Enttec which gives a few pointers:

https://enttec-assist.freshdesk.com/support/solutions/articles/101000504863-elm-effects

[Joe Tremble]

After checking out the Enttec link you listed, I tried a couple of audio .frag files from shadertoy.com and both of them just "sat" there when I tried to run audio through them.

I get it... no guarantees that these would work, but it would be great if we could put together a list of audio responsive shaders that work with ELM.

A few years back I had a huge zip file full of shaders that all worked with ELM (if I remember correctly, they each even had a thumbnail .jpg for each). 

I am not even sure where I got them. I went looking for them the other day and have yet to figure out what I did with them. 

Any help creating an "expansion pack" would be great. 

Thanks, 

[A]

Hi Joe,

I'm not software support for ELM but i can tell you a few things. Shadertoy scripts dont use the same audio input in the code. You need to find "iChannel" which is either iChannel0/1/2/3 in the code and replace it with what ELM uses which is FFT??? i can't remember what it is but look at audio triggered shaders in ELM and find the input (i use notepad++ on windows).

Its not to do with guarantees its that its all just code files and shadertoy is just randoms making stuff on the internet. ELM is just a render engine the code has to be right for it.

I agree more shaders would be amazing from ELM and i've started this thread to see if anyone is building them for this reason

Thanks

Alastair

[Mathieu Lightjams]

Hi,

Maybe a good way to start would be to post the links of the shaders you like from shader toy (https://www.shadertoy.com/) or other websites. Then they might be included in the next version.