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Re: [Public WebGL] EXT_shader_texture_lod in WebGL2?

Severe blinking "Warning DO NOT USE" added to all ETC and ETC1 extension pages, stating that:

Often implemented in browsers by decompressing on the CPU and uploading full size to GPU with severe performance, vram and quality impacts.
  1. http://webglstats.com/webgl/extension/WEBGL_compressed_texture_etc
  2. http://webglstats.com/webgl/extension/WEBGL_compressed_texture_etc1
  3. http://webglstats.com/webgl2/extension/WEBGL_compressed_texture_etc
  4. http://webglstats.com/webgl2/extension/WEBGL_compressed_texture_etc1