renamed LibNode to NodeLib

[sunag]

Hi. I renamed LibNode to NodeLib
LibNode is not a Node is more like a ShaderLib.

[sunag]

cache improvement prevents some bugs in StandardNodeMaterial and also support TextureNode in environment for something like Spherical Reflection with Roughness.

[WestLangley]

normalScale should be a vec2, no?

[sunag]

Hi @WestLangley. This would be a param equivalent of texture2D( normalMap, vUv ).xyz in https://github.com/mrdoob/three.js/blob/dev/src/renderers/shaders/ShaderChunk/normalmap_pars_fragment.glsl#L20

[WestLangley]

Hi @sunag. Great work, BTW!

Sorry, I do not understand your reply... Maybe I am missing something, but what I was pointing out is bumpScale is univariate, but normalScale is bivariate.

[sunag]

Maybe I am missing something, but what I was pointing out is bumpScale is univariate, but normalScale is bivariate.

I had to run some tests. Really works but normalmap brings a scale value in .z which also affects the normal.

I did a vec2 refraction with manual scale here: sunag@157b93e

but looking better the textures I have to put a vec3 too.

[sunag]

Hi @sunag. Great work, BTW!

Thanks, Great PBR Material too 👍 !

[WestLangley]

@sunag Sorry, I do not think I am making myself clear. In your code:

"vec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm, vec3 map, vec2 mUv, float scale ) {",

scale should be a vec2, and so should NormalMapNode.scale, because MeshPhongMaterial.normalScale is a Vector2().

In the examples, normalScale often must be Vector2( 1, - 1 ) -- depending on how the normal map is encoded.

[sunag]

Hmm, normalScale to vec2 looks nice, so soon send a update.