Grab Passes are a really complicated and expensive way to do nothing in a shader. A Grab Pass is an additional pass added to your shader that captures the scene and allows you to use that captured texture in your shader.

Pew pew! Lets take the next step in building our shield shader. In this video we’ll be building two things.

Lets start building a cool energy shield shader that can dynamically react to collisions and more. To begin we’ll be looking at how to pass collision information to our shield by sending an array of positions to our shader.

A mage blasts a rock with a magic missile, the magic engulfs the stone in flame and slowly tears it apart.

Lets make a hologram shader that can be used to draw any object as if it was a projection in some science fiction scene.

We are making a top down shooter. That’s cool right? But wait there is more! This isn’t just any top down shooter, this game isn’t even played on your computer!

Expanding a vertex shader by allowing us to Clamp the distance of the vertices to a fixed distance. This effectively allows us to limit the model to a “sphere” or part of a sphere if we reduce the limit far enough.

3D Rotational Matrices? What do they do? How do you use them? And more importantly what cool stuff can we make with them?

Time for something a bit different. In this video we’ll delve into WebGL using a tool called ShaderToy, a great way to learn and experiment with shaders all from inside your web browser!

A Shadertoy shader creating a classic hypnotic disc effect.

Adding a custom physics implementation to our grass renderer. This video adds a compute shader to simulate our grass individually.

Lets improve our Voxel Terrain! Specifically, let’s start work on a shader that can shade our terrain. Our terrain uses each color channel from the vertices of our voxel mesh to designate a different material.

Conway’s Game of Life was created by John Horton Conway in 1970. It’s designed as a mathematical system capable of creating copies of itself.

Lets say you want to render grass. A LOT of grass. How would you do it? In this video we’re going to try to solve that using a point cloud and a geometry shader.

Lets look into how to add grass to terrain. We’re going to combine instanced rendering and raycasting to dynamically place grass on the terrain.

Let’s make a contour map shader by layering a number of planes and creating a simple shader to draw “slices” from a heightmap.

Let’s make a revealing shader that is normally blank and full transparent, but when you shine a light on it becomes revealed.

Asteroid’s VR needs a triplanar shader for its asteroids so we’re going to make one. Specifically we’re going to look at how to handle the projection onto a mesh without using UV’s.

Let’s align our planet shader a bit more with the style of our game. We’re aiming for a low poly style, the fairly common style of indie game devs lately.

There are two ways to accomplish a low poly, flat style in 3D graphics. The first is to modify the smoothing on the mesh so that normal’s aren’t smoothed out.