Bio Rust, a digital art technique library. Made by hand, taught by artists.
A free reference for artists who draw and paint by hand: anime and character construction, painting fundamentals, process and provenance, and free brushes. Weathered copper tray with verdigris patina holding ink brushes, a pencil and a dish of muted green paint beside an open sketchbook of loose pencil circles.
Character & Anime Art
Draw expressive faces and figures by hand. The flagship pillar, and where the archive began.
Digital Painting
Render light and color with intent.
Process & Provenance
Document your process and prove authorship.
Free Resources
Brushes, textures, palettes. Free to use.
How to Draw Anime Eyes: A Complete Method
The eye is the anchor of a stylized face. Build it in the same order every time, from the gap to the lash line to the iris, and it stops feeling like luck.
How to Document Your Art Process
A repeatable way to keep thumbnails, construction, session saves, layered files and timelapse so you can show exactly how a piece was made, and prove authorship when someone asks.
Values in Painting: Why Your Color Looks Off
If a painting looks wrong in color, it is almost always wrong in value. Build the value structure in three greys before you touch hue, and color becomes the smaller half of the job.
How to Check Where an Image Came From
Before you credit, repost or accuse, trace the image. Seven checks in a fixed order, from the largest copy to the visual tells, with a log of what each one showed.
How to Draw Anime Hair as Blocks, Not Strands
Stop drawing individual hairs. Group hair into a few large flowing masses from the crown, ink the edges with weight, and add one band of shine, and the whole thing reads as hair.
Layer Blend Modes for Shading, Explained
Multiply, Screen, Overlay and Add do most of the work in digital shading. Here is what each one is for, the stack that uses them, and the order to build it.
How the library is organised
Every page on Bio Rust is a method: an ordered set of decisions you can follow at the canvas, with numbered steps, one callout for the idea that matters most, a table where a comparison needs one, and the sources behind every fact. The plates above are the four pillars and the techniques readers open most. Character and anime art teaches construction: how to draw anime eyes, head proportions and hair as blocks. Digital painting teaches value, edges and blend modes. Free resources holds the brush sets, textures and palettes, free for any use. The full list is in the tutorials archive, and the library search finds a technique by name.
Proving the work is yours
Artists are now asked, more and more often, to show that a piece was made by hand. The Process and Provenance pillar is the practical answer: keeping a process record of roughs, layers and timelapse, understanding Content Credentials and the C2PA standard, checking where an image came from before crediting or accusing, and how to judge an image fairly when someone asks whether it was generated.
Why made by hand
Bio Rust has taught people to draw since the mid two thousands. The tools have changed, but the reason to learn has not. A machine can generate an image, but it cannot give you the eye that knows why the image works, or the hand that can change it. Those are still earned the old way, one technique at a time.
So this library stays what its readers made it: a calm, free place to learn real craft. No shortcuts sold, no skill skipped. Just the techniques, taught plainly, for artists who want to actually make the thing.
Bio Rust, since the early days, still by hand.
Related reading
- Process and Provenance pillarDocument your process and prove authorship.
- How to Draw Anime Eyes: A Complete MethodThe eye is the anchor of a stylized face. Build it in the same order every time, from the gap to the lash line to the iris, and it stops feeling like luck.
- Values in Painting: Why Your Color Looks OffIf a painting looks wrong in color, it is almost always wrong in value. Build the value structure in three greys before you touch hue, and color becomes the smaller half of the job.
- Free Brushes & ResourcesBrushes, textures, palettes. Free to use.
- About Bio Rust and the made by hand manifestoWhy the library exists and what it stands for.