[Bf-cycles] Cycles Curve rendering tangents

Mohamed Sakr 3dsakr at gmail.com
Sun Nov 29 13:48:42 CET 2015


I noticed that Cycles generates Curves well when the subdivision is high
"so the total segments are more than 30 for a short hair".

if the subdivision is low, the normals are not consistent..
a simple test: open a new scene,
add hair  with dynamics to the cube,
press play,
make Cycles Hair subdivisions = 0.
test render, it will show the problem with inconsistent normals.

I wonder which part is generating the hair geometry from Curves? can't we
add one more data to the hairs "like tangent vector" , so it guides the
normals to be smooth.

Mohamed Sakr
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