strange black artifacts on bevelled curve

Support Materials and Textures
#1

wow its been a while since ive posted anything in the support section! :wink:

im making a simple model of a mountain road, using a path with a beizer curve defining the bevel shape. in the 3d view it looks fine, but when i render itā€¦

http://i33.tinypic.com/20zczs8.png
20zczs8.png960Ɨ540

its a curve so i cant do anything with normals or remove doubles, and i raised it off the hill to see if it was z fighting but that wasnt it either. is there something ive missed? the blend file is on paste all : Here. Thanks!

Edit: or some reason if you write Paste all as one word: ā€œ********ā€ it turns into stars. anyone know what thats about?

Edit 2: it changes the actual link also! what is goin on? ill try to make a tinyurlā€¦

Edit 3: Alright hope this works: http://tinyurl.com/HillPaste-All

#2

The render is fine with the original 2.53beta but I get the black area problem with r31513. Looks fine if you convert the curve to a mesh. Iā€™d say it was a problem with blender itself rather than your model.

#3

ok thats kind of reassuringā€¦i just hope it will fixed in future revisions. do you think its worth making a bug report? i cant exactly pinpoint any one thingā€¦

#4

Make sure you turn VnormalFlip OFF. IIRC its in the render panel

#5

thanks for the reply, but i cant seem to find itā€¦

#6

Well I canā€™t find it either! They were talking about removing vertex normal flipping a while back, perhaps its been removed. Does anyone know if Vnormal Flip is still toggle able? This is one of those instances where it may help or hinder, hmm Iā€™ll keep looking - so far not in world, scene or camera settings.

#7

oh well, it is still in beta after all, i think we are quick to forget that, however advanced it may be. Please let me know if you see any revelations on the subject.