📦 Bundle size

Full ESM build, minified and gzipped.

🌳 Bundle size after tree-shaking

Minimal build including a renderer, camera, empty scene, and dependencies.

What is the proper distinction between normalView and normalViewGeometry?

//

This may need clarification, too -- in a separate PR, that is.

https://github.com/mrdoob/three.js/wiki/Three.js-Shading-Language#normal

What is the proper distinction between normalView and normalViewGeometry?

The transformed term reflects the modifications applied by processes such as skinning, morphing, and similar techniques. The term transformed also includes following the correct orientation of the face, so that the normals are inverted inside the geometry.

Trying to clarify...

normalView is the view-space normal, post skinning and morphs.

normalView honors the material sidedness.

//

normalViewGeometry in TSL is the same as the so-called nonPerturbedNormal in the WebGLRenderer shaders. That is, it is the view-space normal, unmodified by skinning or morphs.

1. Does normalViewGeometry honor the material sidedness?
2. Can normalViewGeometry be made private so we don't have to explain it?

1, 2. No for both I imagine.

normalViewGeometry is used internally to construct the normalView, so not honoring material sidedness simplifies the process, besides being used in other examples like webgpu_tsl_earth of the normalWorldGeometry variant for some optimization techniques this may not be desired honoring material sideness, not making it private can help in more specific cases.

The developer could still use the function directionToFaceDirection() for honor the material sidedness.

const objectNormalView = directionToFaceDirection( normalViewGeometry );