Any possible way to use gl.TEXTURE_3D with webgl2?

[chwan1]

I'd like to port this using regl, since the functional nature of regl makes a good developing experience.

I've wrapped webgl2 using the technique in #561. And I'm wondering is there any way I can use texture 3d under this wrapper? Perhaps a custom binding of 3d texture to shader uniform is possible?

Currently, I have uniform mediump sampler3D tex; in my shader.

[deluksic]

I started a fork in which I implement regl.texture3D. You can also use EXT_texture_norm16 extension with (for now only) r16 and r16_snorm texture formats.

It is a WIP, but it works for our needs.

• use the WebGL2 wrapper described in Compatibility with webgl 2 #561
• write your shaders with #version 300 es (this introduces a ton of changes! Read up on WebGL2 vs WebGL1 differences)
• add precision <precision> sampler3D;

https://github.com/deluksic/regl