Tässä dokumentissa on tietoa ArchiCADin käyttämisestä yhdessä RenderMan-
ohjelmiston kanssa. Koska tiedossamme ei ole yhtään suonmalaista
RenderManin käyttäjää, joka käyttäisi myös ArchiCADiä, niin emme ole 
suomentaneet tätä. /M.A.D. Oy


IMPORTANT INFORMATION FOR RenderMan USERS

ArchiCAD can save 3D models in RIB format to perform enhanced renderings 
with RenderMan. To be able to do that, you need to use special surface 
definition documents - "shaders" - together with the RIB document.

RIB documents exported from ArchiCAD refer to shaders
	ACShader
	  and
	ACDepthC.

These documents can be found in the Shaders directory on your original 
ArchiCAD disks and copied in the directory you specified for ArchiCAD.

Place the documents acshader.slo and acdepthc.slo into your 
pixar\system\shaders directory. This is the only location where RenderMan 
has access to them.

(the acshader.sl and acdepthc.sl files contain the sources of the shaders)

These shaders include only as much information as ArchiCAD can define like 
color, shininess and transparency, but do not include i.e. surface textures. 
To take full advantage of RenderMan's capabilities, there is a way to use 
more detailed shaders than these ones.

1.  Open the RIB file using a common text editor like i.e. NotePad, Write 
or DeskEdit.

2.  Search for the '#MATERIAL' string in the document. After that, you can 
find the name of the material in ArchiCAD. The next line defines the surface 
color and the third one is the reference to the ACShader. Change that line 
to the appropriate surface reference.


Example:
Let us say that you have a shader called "my plaster" with realistic surface 
texture which you want to use with an ArchiCAD model.

Original RIB output:
#MATERIAL	"Plaster, smooth"
Color [0.64802 0.638315 0.574136]
Surface "ACShader" "Ka" 0.8 "Kd" 0.9 "Ks" 0.15 "Kt" 0 "shine" 1 "specularRGB" 
[0.894743 0.861753 0.786999] 

Change it to:
#MATERIAL	"Plaster, smooth"
Color [0.64802 0.638315 0.574136]
Surface "my plaster"


3.  Save the changed RIB document and use it with RenderMan.
(If you worked with a text editor like Write, be sure to save the document 
in TEXT format.)

Graphisoft 1993