Cycles:

* Revert r57203 (len() renaming)
There seems to be a problem with nVidia OpenCL after this and I haven't figured out the real cause yet. 
Better to selectively enable native length() later, after figuring out what's wrong. 

This fixes [#35612].

1 files changed, 2 insertions, 2 deletions

diff --git a/intern/cycles/render/object.cpp b/intern/cycles/render/object.cpp
index cd266367b6f..1a2780995e3 100644
--- a/intern/cycles/render/object.cpp
+++ b/intern/cycles/render/object.cpp
@@ -200,7 +200,7 @@ void ObjectManager::device_update_transforms(Device *device, DeviceScene *dscene
 						float r2 = mesh->curve_keys[first_key + i + 1].radius;
 
 						/* currently ignores segment overlaps*/
-						surface_area += M_PI_F *(r1 + r2) * length(p1 - p2);
+						surface_area += M_PI_F *(r1 + r2) * len(p1 - p2);
 					}
 				}
 
@@ -233,7 +233,7 @@ void ObjectManager::device_update_transforms(Device *device, DeviceScene *dscene
 					p2 = transform_point(&tfm, p2);
 
 					/* currently ignores segment overlaps*/
-					surface_area += M_PI_F *(r1 + r2) * length(p1 - p2);
+					surface_area += M_PI_F *(r1 + r2) * len(p1 - p2);
 				}
 			}
 		}