在OpenGL ES 2.0中，仅当实现导出 OES_texture_float_linear ，因此可以放宽此限制.另一个可能的警告是，OES_texture_float的存在并不要求实现支持使用帧缓冲对象渲染到浮点纹理.

In OpenGL ES 2.0, floating-point textures are only supported if the implementation exports the OES_texture_float extension. Note that this extension only allows nearest filtering within a texture level, and no filtering between texture levels. This restriction is loosened by the presence of OES_texture_float_linear. Another potential caveat is that the presence of OES_texture_float does not require that the implementation support rendering to floating-point textures with framebuffer objects.

您打算如何处理浮点纹理?

What are you trying to do with float textures?