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Each core can perform one task at a time, so by taking advantage of multiple cores, we can perform that many tasks simultaneously. Modern CPUs typically have between two to eight cores.
#GAME MAKER STUDIO 2 SHADERS CODE#
The reason shader code is usually executed by the GPU is that it is more efficient at it. For example, if you want a shader to make your sprite be black and white, then you’d calculate which shade of grey each pixel needs to be to create the effect. In your fragment shader code, you perform operations and calculations to determine the color of that pixel to get the effect you want. This allows us to change the vertex position and color before passing it over to the fragment shader since the vertex shader is executed earlier.įor the fragment shader, you can imagine the same loop as before, but this time it goes over every single pixel in your sprite, giving you information such as location and color of that pixel. Now, imagine we have a for loop that goes over every vertex and executes the code inside the vertex shader for each. This leaves us with six vertices (corners) per sprite, but two of those are the same one, so we should only worry about four. Each sprite is formed by a rectangle, but computers like to draw triangles, so those rectangles are split into two triangles (sometimes called a quad). This difference comes with its own set of rules and limitations, but we’ll cover those later.Įach shader is made up of two separate components: a vertex shader and a fragment shader (also referred to as pixel shader). Shader code is similar to regular code, but it is (almost always) executed by the GPU, not the CPU. So, what is a shader? Initially they were created to provide shading for lighting (hence the name), but they are now used to produce a huge variety of effects. They are also among the most advanced features offered by GameMaker Studio 2, so it is necessary that you have a basic understanding of programming and how GameMaker Studio 2 works before getting started with them. Shaders are often used to create beautiful graphical effects in games.