BumpMapNode produces inverted normals with WebGL renderer

[njarraud]

Description

Code produced by BumpMapNode returns inverted normals.

Current implementation

Fix with negate() removed

In Blender - result is the same as with the fix

Reproduction steps

1. Create a mesh using MeshPhysicalNodeMaterial
2. Plug a BumpMapNode with a texture to normalNode input.
3. The normals seems to be inverted

Code

The issue comes from surf_pos: positionView.negate() which shall be only surf_pos: positionView.

return perturbNormalArb({
    surf_pos: positionView.negate(),
    surf_norm: normalView,
    dHdxy,
});

Live example

None

Screenshots

No response

Version

r156

Device

No response

Browser

No response

OS

No response

[LeviPesin]

Shouldn't this have been fixed with #26776 and #26807?

[sunag]

#26865