The bottom section is the Custom Inputs section. This is where the equations go which generate the textures. Let’s look at the Procedural Texture Dialogue in detail: Procedural Textures seem to need a filled pixel layer to work against. Fill this layer with your foreground colour through Edit>Fill with Primary Colour. Create a new pixel layer by clicking on the chequerboard icon at the bottom of the layer palette or go to Layer>New Layer. The Procedural Texture Dialogue ExplainedĬreate a new blank document 1920x180 pixels (the size doesn’t matter). Let’s leap right in! If you’ve opened the Procedural Texture dialogue, close it. This option gives you the chance to change or edit the PT later, but lots of Live Filter Layers may slow down your system. You can also launch them as a Live Filter through Layer>New Live Filter Layer>Colours>Procedural Texture. Go to Filters>Colours>Procedural Texture. If you use them as live filters, they are not even fixed then, but remain completely editable AND interchangeable. The pattern is only ‘fixed’ as pixels when you hit apply. The clever thing about Procedural Textures is that, because they are generated by maths equations, like vector graphics, they work at all resolutions and sizes of documents. ![]() You DON’T need to understand the maths or coding to use or customise them – I promise! Simply put, they are a line, or lines of mathematical formulae in C++ programming language which generate patterns of pixels, BUT DON’T LET THAT SCARE YOU. I have dozens now which I have used to create chalk, watercolour, cross-hatching, oil paint, grunge, paper and canvas textures… their uses seem only to be limited by your creativity and experimentation, which let's face it, is half the fun! With procedural textures you can: create textures and patterns which can be used in place of image textures create textures for displacement maps and create artistic filters create gradients lighting effects like highlights and sun spots. Why bother with Procedural Textures at all? The following tutorials will help you build up enough knowledge to mess around with them and tweak them to make your own. I assume you know absolutely nothing about Procedural Textures. The aim of this first tutorial, is to give an introduction to Affinity Photo’s Procedural Texture filter from absolute scratch. It’s this PRACTICAL knowledge I want to share in a few tutorials with those who look at the Help section in Affinity, see “var v2=vec2(rx/w/2, ry/h/(b*2)) dir(v2*(a*2))*(c*2)” and run for hills screaming. ![]() ![]() The answer is that without any understanding of the maths or the syntax, I have managed to work out enough to create artistic filters and macros for all kinds of artistic, lighting and graphic design effects. I also only have a very rudimentary understanding of the syntax for making the equations from scratch. Honestly, I have barely the slightest clue about the maths. I don’t understand the mathematics involved either!.
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