EXT_texture_norm16 extension is part of the WebGL API and provides a set of new 16-bit signed normalized and unsigned normalized formats (fixed-point texture, renderbuffer and texture buffer).
When this extension is enabled:
WebGLRenderingContext.texSubImage2D()methods accept new formats provided by this extension.
- The 16-bit normalized fixed-point types
ext.RGBA16_EXTbecome available as color-renderable formats and renderbuffers and be created in these formats.
Note: This extension is only available to WebGL 2 contexts.