Using the width of the document to determine how the texture is made appears in some of the default equations like Urban Camoflage. In order to just multiply the width by 2 and nothing else, the w*2 must also be put in brackets – (w*2). W is C++ code for the width ( I think) of your document, which in this instance is to be multiplied by 2. It is now going to DIVIDE that by the next part (w*2). This is must be enclosed in brackets so that Affinity knows to read this as a single instruction. +500 is a way of telling Affinity to make the starting point for the texture 500 pixels in. rx we know from the earlier tutorials is an instruction to make click-draggable noise across the screen starting in the top left corner. Each part is separated by a / (divide) symbol. It is has got three parts (rx+500), (w*2), and b.
#Affinity photo tutorials for beginners how to
This segment is the instruction for how to make noise across the image. Looking back at the perlinsc equation, it has FOUR parts, each separated by commas. NOTE: There’s no brightness control at the end outside the closing bracket – I ditched it for the sake of simplicity.
The whole set of instructions for making perlincubic noise are contained (must be contained) within an opening and closing set of brackets:
#Affinity photo tutorials for beginners full
Instead of making perlinsc I thought I’d experiment with another Perlin noise function – I picked perlincubic (there is a full list of Perlin noise types in the help file under Procedural Texture). I’ll take you through the assembly of the texture later.
We’ll need to two more for the green and blue channels.
Important note: This equation is going to be used for the red channel only. To create the watercolour background texture I showed you at the beginning of this tutorial, I started with the basic Simple Perlin Noise preset equation - perlinsc(rx/200,ry/200,7,0.6)*0.7.Īt face value, it doesn’t seem to bear any relation to perlincubic((rx+500)/((w*2)/b),(ry+500)/((h*2)/c),7,a), which was my kicking-off point for making the texture, but let’s break it down: I you are unsure how to do this, look at the beginning of the previous tutorial. Using the techniques we’ve learned so far, we’ll produce a beautiful and adjustable watercolour background texture like this:įirst, create a new document with a filled pixel layer and add a Procedural Texture. In the tutorial we are going to look at a more complex example of using brackets to expand the usefulness of Procedural Textures.
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