Elevation-Rotation Input

[NotMyFault]

If you ever asked yourself how the Elevation-Rotation Input in Procedural texture works:

It gives a 3-D vector output (R, G, B)

R and G depend on the x and y-axis in a normal way.

B depends on the distance from the middle point, in a non-linear way (i assume cos-function).

The R value increases based on the x-position.

• left from middle, you get R=0
• right from middle, R increases from 0 to 1 depending how far you go.
•  

The G value increases based on the y-position.

• above the middle, you get G=0
• below the middle, G increases from 0 to 1 depending how far you go.

The B value increases based on the distance from the middle point.

• At the middle, you get B=1
• approaching the edge, B decreases non-lineary from 1 to 0 depending how far you go.
• On the first 80% of the way, B decreases very slighly.
• On the last 20% of the way, B decreaes  sharply, making this input control very hard to use, as the B value jumps across its range with very limit6ed control via mouse.

 

 

 

 

Posible colors to create with these input:

• The image shows you a approximation of what colors you can create with help of the input tool.

Example Position:

 

This is a tutotrial trying to compensate for missing documentation in Affinity Photo.

[StudioJason]

Nice. May wish to differentiate Desktop only... as not possible to use Equations or create many types of Presets on iPad version. 
 

[Eagle Suplementos]

Very nice! Thank you for this tutorial.

Best,