Unity shader compiler slow. Hey there! I'm trying to build my game right now but I've been stuck on the compiling shader variants part for tens of hours. It is impossible to continue Jul 20, 2022 · Since Unity 2021. 3. Jan 9, 2019 · I’m finishing my android project, it is very simple and the unique shaders I use are the TextMeshPro Mobile Diffuse and Projector - Light. i will never be able to upload the game if the build process is as slow as it currently is. It’s especially awful if you build for multiple platforms. 1 Like Topic Replies Views Activity Unity 6000. Under all default settings, Unity loads the shaderlab Shader object into memory, but does not create the internal shader variants until they are actually needed. ) has a lot of money and they can afford ultra-modern workstations for work. 2. Sep 28, 2022 · With improvements to our build time shader processing, we will pre-filter unnecessary multi_compile keywords, so this should significantly reduce variant processing time though! Many developers, myself included, have struggled with increasing build times. 0. This has resulted in significantly reduced shader build times and runtime memory usage for projects created using Unity 2021 LTS and later versions. In my opinion, the compile process takes a way longer time than needed to strip/optimize passes and other stuff for Shader Graph shaders. 0), there has been a well known problem with absurd number of shader variants wanting to be compiled for even a somewhat simple shader (i. g. This “Compiling shader variants” takes the 99% of the build time and it last for almost an hour. In my time with Unity I have looked at many Unity. basic Lit Shader Graph, or even a copy of basic URP Lit shader), due to the amount of new keywords processed with #pragma Oct 16, 2020 · UNITY SHADER VARIANTS BUILD TIME OPTIMIZATION – Speed up slow Unity builds – Hardware + Unity Tips Written by Frederik Koetje | October 16, 2020 | Hardware, Tutorials, Unity 2D Development, Unity 3D Development Dec 28, 2022 · To address this problem, Unity’s Shader Management team has been hard at work to provide meaningful and scalable solutions. Having multiple levels of loop nesting can cause the compiler to go into an extremely slow processing path and there is nothing we can do about it. Any help is appreciated. 1 build times drastically longer than 2021. Jun 6, 2024 · Shader compilation is a very heavily multithreaded task (IIRC one shader compiler instance per thread) so the more cores you can afford the better your results will be. Any solution? Aug 8, 2019 · It happened at compile-time when Unity starts to automatically build the game. 3 Unity Engine Advanced , Feedback , 6-1 8 760 July 2, 2025 Unity 5. Just kidding… mostly. Sep 15, 2017 · My experience has been that building is Unity is the most flaky and frustrating part of working with Unity. Once that was over, I thought it would be done, but it proceeded to do some other stuff and then attempt to compile the Nov 24, 2021 · The shader has 6 local shader features and I wouldn’t think that it’s very complicated. Jan 28, 2025 · Maybe unity should cover the costs for everyone on our team waiting for shaders to compile. Notice how after starting a new game, Unity 6 has a super distracting pop up that takes ages, while in 2021 there is a small hitch and then it loads. 1p1 Issue ID 766056 Regression No [Shaders] Shader compilation is slow for shaders with massive amounts of shader_features Shaders - Jan 29, 2016 Aug 16, 2023 · A common complaint among Unity users is that the Editor is slow and that common operations take a long time. This is commonly referred to as “bad iteration times” because it hinders your ability to iterate on your project. First is Unity 6, then it’s Unity 2021, both where cold booted. 0b7 (that is, URP 12. The reason behind this is, in most cases at least, are shader variants. tiuk ficbuyrx qdb pjtdal ohnoil nrwykm ikeeyz sdvk kxtf aho