If you use either of the WebGL2 or WebGPU APIs, there are recommendations and restrictions you need be aware of:
Note: There are further restrictions and limitations that are unique to each API that you need to be aware of. For more information, refer to WebGL2 or Limitations of WebGPU.
Unity Web supports dynamic font rendering similar to other Unity platforms. However, Unity Web doesn’t have access to the fonts installed on the user’s machine, so if you want to use any fonts, include them in the project folder (including any fallback fonts for international characters, or bold/italic versions of fonts), and set as fallback font names.
Unity Web only supports Baked Global Illumination. Realtime Global IlluminationA group of techniques that model both direct and indirect lighting to provide realistic lighting results.
See in Glossary isn’t currently supported in Web. Also, Unity Web supports non-directional lightmapsA pre-rendered texture that contains the effects of light sources on static objects in the scene. Lightmaps are overlaid on top of scene geometry to create the effect of lighting. More info
See in Glossary only.
You can’t use VideoClipImporter to import video clips to your Unity project because it might increase the initial asset data download size and prevent network streaming. To use video playback in Web:
URL option in the VideoPlayer component.StreamingAssets directory to use the built-in network streaming of your browser.Due to limited available memory in Web, don’t include unwanted shaderA program that runs on the GPU. More info
See in Glossary variants because it can lead to unnecessary memory usage. Therefore, it’s recommended to familiarize yourself with shader variantsA verion of a shader program that Unity generates according to a specific combination of shader keywords and their status. A Shader object can contain multiple shader variants. More info
See in Glossary and shader stripping. Also, take extra care to ensure that you don’t add shaders with too many variants (for example, Unity’s Standard Shader) to the Always-included Shaders section in Graphics Settings.