Hello,
We recently noticed that if we have non normalised face normals on our meshes, the viewport2.0 will render visuals with broken reflections (as if the normals where different).
We currently have a slow python tool snippet to fix these normals:
import math
import maya.mel as mel
def normalize_normal():
mesh_to_vertices = cmds.polyListComponentConversion(toVertexFace=True)
cmds.select(mesh_to_vertices, replace=True)
all_vertices = cmds.ls(sl=True, l=True, flatten=True)
#print(all_vertices)
[action(i) for i in all_vertices]
def action(i):
cmds.select(i, replace=True)
#normals_xyz = cmds.polyNormalPerVertex(q=True , xyz=True)
normals_xyz = mel.eval("float $value2[] = `polyNormalPerVertex -q -xyz`;")
normals_x = normals_xyz[0]
normals_y = normals_xyz[1]
normals_z = normals_xyz[2]
#Formula
n= math.sqrt(pow(normals_x,2) + pow(normals_y,2) + pow(normals_z,2))
x=normals_x/n
y=normals_y/n
z=normals_z/n
cmds.polyNormalPerVertex(xyz=(x, y, z))
normalize_normal()
Or the second "fix" is if we also apply a small rotation on meshes that also fixes the renderer issue.
more details can be found in case 18393186.
link to exemple files :
https://a360.co/3kqva3z Thank you,
Morgan
