Procedural Texture on iPad - no dialog for equations

[MrBazza]

Procedural Texture on iPad only seems to support presets. I cannot find how to open a dialog to input custom equations. Will this be a limitation on Affinity Photo for iPad compared to desktop?

[stokerg]

Hi @MrBazza and Welcome to the Forums,

You can input custom equations using the Equations Filter.  If you look up Equations in the Help file, you'll find more information on this filter  

[MrBazza]

Thanks for reply ... I have seen the Equations filter which provides for xy coordinate transformation (and polar coordinates) whereas the Procedural Texture filter provides for colour channel manipulations. The tutorials on Procedural Texture are done on the desktop version which provides a dialogue to create equations eg for channel mixing. This feature does not seem to be available on ipad (yet anyway). Hopefully it will come.