TSL: Remove transformed* prefix - WIP

[sunag]

Related issue: #30849

Description

Removing the transformed prefix from normals also simplifies the shader creation process, making it less confusing.

For those who need normals without the fine surface transformations (fragment), a suffix called Geometry has been added, such as normalViewGeometry.

With the implementation of namespace, the normalView node, for example, will return the same as normalViewGeometry if used inside the material.normalNode input, and if used outside, it will use the final calculation.

This is also more in line with the strategy of moving the vertex calculations from skinning and morph to compute() and leaving it with the fewest possible modifications, perhaps none for the target developer.

[github-actions]

📦 Bundle size

Full ESM build, minified and gzipped.

	Before	After	Diff
WebGL	337.26 78.64	337.26 78.64	+0 B +0 B
WebGPU	551.84 153.07	552.22 153.14	+378 B +70 B
WebGPU Nodes	551.19 152.91	551.57 152.98	+378 B +71 B

🌳 Bundle size after tree-shaking

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

	Before	After	Diff
WebGL	468.44 113.28	468.44 113.28	+0 B +0 B
WebGPU	626.86 169.75	627.57 169.92	+715 B +170 B
WebGPU Nodes	581.71 159.08	582.61 159.27	+902 B +187 B

[mrdoob]

Curious about why you called it "namespace". Wondering if there are more intuitive names...

[sunag]

Curious about why you called it "namespace". Wondering if there are more intuitive names...

I slept thinking about it too hehe. Namespace is used to separate blocks and generate prefixes, it is one of the things that happens although the execution behavior is very specific, executing within one namespace and another. It is a named flow control referring to the input of the material, perhaps we could link it to a naming referring to this process.

[mrdoob]

Yeah, are there alternatives? Would block be an alternative?