TSL: Add support for array of varyings

[qtnrtnd]

Description

Currently, there is no way to create an array of varyings, unlike uniforms (e.g., uniformArray).
Here is a demo in GLSL for those who are not familiar with using varyings as arrays.

Solution

I believe a method very similar to uniformArray, which could naturally be called varyingArray, would be ideal.

Alternatives

I couldn’t find any alternative for what I did in the plain GLSL demo above.

Additional context

No response

[ytianle]

What does the array of varying mean? Can you use an example to elaborate on your need? An array of objects instead of numeric number? I just feel GLSL does not support an array of variables

[Mugen87]

Currently only this style of varying is supported:

 varying vec2 vUv;

The OP is referring to:

varying vec2 vTextureUv[TEXTURE_COUNT];

There is no option to express something like this with TSL right now.

An array of uniform values can already be represented with UniformArrayNode. Such definitions are internally represented as UBOs though.