TSL: Using float(1e21) causes a shader syntax error, but uniform(1e21) does not

[PoseidonEnergy]

Description

Using the following TSL (Three.js Shading Language) node throws an error:

float(1e21)

but the following node does not:

uniform(1e21)

The reason I bring this up is because I noticed that the webgpu_camera_logarithmicdepthbuffer example on threejs.org uses 1e27 as the camera.far value, and camera.far is used in TSL nodes (as a uniform node). In the case that one day the camera.far value is not used in a uniform node, an error will be thrown.

Reproduction steps

1. Use the node float(x) in a NodeMaterial where x is a number greater than or equal to 1e21.

Code

  const nodeMaterial = new THREE.NodeMaterial()
  nodeMaterial.colorNode = THREE.Fn(() => {
    const n = THREE.float(1e21); // <-- this throws an error
    //const n = THREE.uniform(1e21); // <-- this does not throw an error
    return THREE.vec3(n.mul(0), 0, 1)
  })()

Live example

https://jsfiddle.net/trm2onsy/2/

Screenshots

No response

Version

169

Device

Desktop

Browser

Chrome

OS

Windows