TSL: Remove transformed* prefix

[sunag]

Related issue: #31177, #31260, #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	337.54 78.73	337.54 78.73	+0 B +0 B
WebGPU	555.73 153.92	556.32 154.12	+591 B +205 B
WebGPU Nodes	555.08 153.76	555.67 153.97	+591 B +204 B

🌳 Bundle size after tree-shaking

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

	Before	After	Diff
WebGL	468.74 113.38	468.74 113.38	+0 B +0 B
WebGPU	631.33 170.79	632.24 171.08	+911 B +291 B
WebGPU Nodes	586.18 160.12	587.24 160.39	+1.06 kB +267 B

[sunag]

If a normalMap is used, the normalWorld cannot calculate surface reliefs during the vertex stage or while constructing normals, as this would lead to recursive computation issues. Therefore, in both cases, normalWorld behaves according to the logic defined in each specific build and sub-build stage of the shader.

Vertex Stage or Normal Sub-Build Stage	Fragment Stage

// Examples of Vertex-Stage
material.positionNode = normalWorld /*... no logic considering only for example ...*/
material.colorNode = normalWorld.toVertexStage(); // run normalWorld completely in vertex-stage

// Example of Normal Sub-Build Stage
material.normalNode = normalWorld  /*... no logic considering only for example ...*/

// Examples of Fragment-Stage
material.colorNode = normalWorld;
material.opacityNode = normalWorld;
material.roughnessNode = normalWorld;
material.metalnessNode = normalWorld;
// etc

/cc @mrdoob @Mugen87