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The shader system goes beyond visual appearance, defining the contents of volumes (e.g. a water volume is defined by applying a water shader to its surfaces), light emission and which sound to play when a volume is trodden upon. [3]
If one is defined, a volume shader describes the light interaction as it passes through the volume of the mesh. Light may be scattered, absorbed, or even emitted [clarification needed] at any point in the volume. [47] The shape of the surface may be altered by displacement shaders. In this way, textures can be used to make the mesh surface more ...
Renderscript has since been deprecated in favour of first OpenGL compute shaders [27] and later Vulkan Compute. [28] OpenCL is available on many Android devices, but is not officially supported by Android. [29] Apple introduced the proprietary Metal API for iOS applications, able to execute arbitrary code through Apple's GPU compute shaders.