[Bf-committers] Duplification of Objects while Ray-Rendering
Meino Christian Cramer
bf-committers@blender.org
Fri, 23 Jan 2004 06:22:57 +0100 (CET)
Hi,
Effect:
=======
After RAY-rendering a wineglass, it appears somehow "doubled" on the
scene (...I said nothing against a doubled portion of a good wine
here :)
Do as follows:
==============
* Start with the default scheme
* Create a curve according to the outline of a wineglass
* Convert it to mesh
* Spin along the rotation axis of a wine glass
* Remove double vertices at the start- and endpoint of the rotation
("...where bertices meet..." :)
* Go to EDIT mode select all vertices and FLIP NORMALS OUTSIDE
* Assign material with ray transparency (IOR=1.54), some phong
shading, specular reflactions and such as you like.
* Render with RAY set
* TADA! You will get two glasses ... one inside the other.
(hicks! .... or may be a had two much wine...seeing everything
doubled ?)
May be this can be cirumvented by building a "solid" glass from a
closed curve...BUT:
1.) If an enduser previously had used a blender with no RAY
rendering support and has done the wineglass-examples from the
2.0-Blender-Manual -- s/he will expect to do/see the same only
more realistic now, since RAY is enabled.
This """hurts""" (watch those many "'s!) the
"Principle of least surprise".
2.) More a feature request than a beetle-report:
Would it be possible to make "double sided" work for
RAY rendering also?
Makeing complex shapes from closed curves -- especially if you
have build the shape with an open curve before and tries to
close the curve (see 1.) ) -- is a real pain...
Keep rendering! :O)
Meino (mcc)