问题
is there a minimum texture size a certain hardware needs to support to be compliant with the OpenGL-ES 2.0 specification ?
Something like the GL_MAX_TEXTURE_SIZE value has to be at least 1024 or 2048 or something like that ?
The reason I would like to know this is because I work on something that uses shaders and as such has to be OpenGL-ES 2.0. Therefore I would like to make the textures as big as possible without having to consider each and every hardware texture limitation (like the old phones with only 512x512).
If there was a minimum number (or a certain value that most devices support) that would help me alot.
回答1:
Yes, any GLES2 implementation must support at least 64 pixel texture in width and height. You can query actual actual max texture size with glGetIntegerv function using GL_MAX_TEXTURE_SIZE enum.
See official spec page 141, table 6.20.
来源：https://stackoverflow.com/questions/9072764/minimum-required-texture-size-for-compliance-with-opengl-es-2-0-on-android