Learn how to create various shape patterns with shaders, using signed distance functions and the fractional part of a number. The tutorial is written in the GLSL programming language.

SDF

Signed distance functions can be used to represent shapes. You can see various signed distance functions here. They will be used to create the patterns.

Triangle

In the previous tutorials we created circle patterns. The idea is the same here, except we use a different function. In this case a triangle function is used instead of a circle function.

float c = Triangle(pos, radius);

Diamond

This diamond pattern was created using the SDF of a rhombus.

Heart

Star

Bloopers

You can get interesting results, depending on whether you choose to add, or multiply, or something else. I recommend experimenting 🙂

Conclusion

Thank you for reading this tutorial. Let me know in the comments section if you enjoyed it, or have any questions!