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Creating Sequences • Renderman allows for sequences of frames to be created within the rib structure by using FrameBegin / FrameEnd • However it is usually better to create a sequence of individual rib files per frame as these can be distributed on the render farm. • The best method for doing this is to use a frame counter and export Rib / frame using the format file.###.rib -> image.###.exr 1 for frame in range(1,30) : 2 filename = "Wave.%03d.rib" %(frame) 3 ri.Begin(filename) 4 5 ri.Display("ProcGeom.%03d.exr" %(frame), "file", "rgba") 6 Saturday, 23 October 2010
Exercise • Try to build this Scene using python functions 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 and 28: Parameter Lists • The parameters
Page 29 and 30: What No Cube? • PRman uses patche
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: Procedural Geometry • The torus w
Page 65: References • [1] Ian Stephenson.
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