![]() ![]() This is where you can implement transformations and displace vertices of a mesh for some effects. The vertex shader is the first shader executed during the rendering, it takes vertices of the scene and attributes as inputs, and outputs new vertices. ![]() In Minecraft shaderpacks, they have respectively the extensions. The two "main" shaders that are executed during rendering are the vertex shader and the fragment shader (sometimes called the pixel shader). ![]() Vertex and fragment shadersĪs stated previously, there are several types of shader. I'll anyway try to give a brief summary about shaders and how they can "know" details about the scene (positions, entities.), more than just pixel colors. Here is also a page listing detailed resources about shader programming and Optifine's pipeline : īe sure to check it as you can probably find most of the information you are looking for here. Thus each programmable rendering stage has its own shader whose inputs and outputs depend on the stage : įor Minecraft, you can find some information about the shader layout on the wiki : For some of these stages you can implement a custom shader program. The rendering process, called the rendering pipeline, is executed by the GPU and is split in several stages. I don't know what is your knowledge of shaders, so I'll walk through several concepts relevant for your question. Describing a shader as something that "gets a set of pixels as an input and returns a bunch of new pixels" is a bit of an oversimplification. ![]()
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