Version: 2017.2

SystemInfo.maxTextureSize

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public static int maxTextureSize ;

Description

Maximum texture size (Read Only).

This is the largest size of a texture that is supported by the graphics hardware. Note that even if the GPU could support a large texture size, for example 16384, you could still simply run out of memory if trying to create one (16384x16384 texture at 32 bits per pixel is 1 gigabyte of data, which may or may not be available).