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Coloured Sphere 1 ##RenderMan RIB 2 #File Param.rib 3 #Created by jmacey 4 #Creation Date: Thu Sep 25 12:27:52 2008 5 version 3.04 6 Display "Param.exr" "framebuffer" "rgba" 7 Format 720 575 1 8 Projection "perspective" "uniform float fov" [50] 9 WorldBegin 10 Translate 0 0 3 11 TransformBegin 12 Sphere 1 -1 1 360 "Cs" [1 0 0 0 0 1 1 0 0 0 1 0] 13 TransformEnd 14 WorldEnd 1 # now we start our world 2 ri.WorldBegin() 3 4 ri.Translate(0,0,3) 5 ri.TransformBegin() 6 colours=[1,0,0,0,0,1,1,0,0,0,1,0] 7 #ri.Rotate(90,1,1,1) 8 ri.Sphere(1,-1,1,360,{"Cs":colours}) 9 ri.TransformEnd() 10 ri.WorldEnd() 11 # and finally end the rib file 12 ri.End() Saturday, 23 October 2010
What No Cube? • PRman uses patches and we can combine them to make a cube. Patch “type” [parameterlist] • Define a single patch. type can be either "bilinear" or "bicubic". parameterlist is a list of token-array pairs where each token is one of the standard geometric primitive variables • Four points define a bilinear patch, and 16 define a bicubic patch. The order of vertices for a bilinear patch is (0,0),(1,0),(0,1),(1,1). • Note that the order of points defining a quadrilateral is different depending on whether it is a bilinear patch or a polygon. • The vertices of a polygon would normally be in clockwise (0,0),(0,1),(1,1),(1,0) order. Saturday, 23 October 2010
Page 1 and 2: Introduction to Renderman using the
Page 3 and 4: Renderman Python • As of Version
Page 5 and 6: Hello World Renderman style • A r
Page 7 and 8: Python Version • The python scrip
Page 9 and 10: Python Path 1 #!/usr/bin/python •
Page 11 and 12: Basic Renderman commands 1 import p
Page 13 and 14: Rib layout • When writing rib fil
Page 15 and 16: Set the display options (file,displ
Page 17 and 18: Transforms 1 ##RenderMan RIB 2 #Fil
Page 19 and 20: ouping Transforms 1 ##RenderMan RIB
Page 21 and 22: Affine Transforms 1 import prman 2
Page 23 and 24: Primitives Renderman Primitives [2]
Page 25 and 26: Note Hyperboloid takes two Points a
Page 27: Parameter Lists • The parameters
Page 31 and 32: Python Cube Function • The previo
Page 33 and 34: Python Dictionaries • Python dict
Page 35 and 36: Adding Colour • To change the col
Page 37 and 38: Attributes 1 WorldBegin 2 Translate
Page 39 and 40: 1 Preamble and global variable decl
Page 41 and 42: Attributes • Attributes are flags
Page 43 and 44: Shading Rate • This is probably t
Page 45 and 46: Shading Rate III • As long as the
Page 47 and 48: Objects • A single geometric prim
Page 49 and 50: Named Primitives • It is occasion
Page 51 and 52: 1 ri = prman.Ri() # create an insta
Page 53 and 54: Frame Buffer Control • There are
Page 55 and 56: OpenEXR Driver • This display dri
Page 57 and 58: Search Paths • PhotoRealistic Ren
Page 59 and 60: ReadArchive • The ReadArchive com
Page 61 and 62: Procedural Geometry • The torus w
Page 63 and 64: Exercise • Try to build this Scen
Page 65: References • [1] Ian Stephenson.

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