#RiGO2

Implementation of the RenderMan Interface for the Go programming language. This is currently based on Pixar's RenderMan Specification version 3.2.1 (November 2005). This implementation is still under active development, so expect holes and bugs.

The current interface mimics RenderManProServer 21.2

Online Documentation

Install with:

go get github.com/mae-global/rigo2

Example usage:

import (
  . "github.com/mae-global/rigo2/ri/core"
  . "github.com/mae-global/rigo2/ri"
  "github.com/mae-global/rigo2"
)

/* create a context to work with */
ri := rigo.New(nil)

ri.Begin("unitcube.rib")
ri.AttributeBegin()
	ri.Attribute("identifier", RtToken("name"), RtToken("unitcube"))
	ri.Bound(RtBound{-.5, .5, -.5, .5, -.5, .5})
	ri.TransformBegin()

		points := RtFloatArray{.5, .5, .5, -.5, .5, .5, -.5, -.5, .5, .5, -.5, .5}

		ri.ArchiveRecord(COMMENT,"far face")
		ri.Polygon(4, P, points)
		ri.Rotate(90, 0, 1, 0)

		ri.ArchiveRecord(COMMENT,"right face")
		ri.Polygon(4, P, points)
		ri.Rotate(90, 0, 1, 0)

		ri.ArchiveRecord(COMMENT,"near face")
		ri.Polygon(4, P, points)
		ri.Rotate(90, 0, 1, 0)

		ri.ArchiveRecord(COMMENT,"left face")
		ri.Polygon(4, P, points)

	ri.TransformEnd()
	ri.TransformBegin()

		ri.ArchiveRecord(COMMENT,"bottom face")
		ri.Rotate(90, 1, 0, 0)
		ri.Polygon(4, P, points)

		ri.TransformEnd()
		ri.TransformBegin()

		ri.ArchiveRecord(COMMENT,"top face")
		ri.Rotate(-90, 1, 0, 0)
		ri.Polygon(4, P, points)

	ri.TransformEnd()
ri.AttributeEnd()
ri.End()	

RIB output of unitcube.rib is thus :-

##RenderMan RIB
AttributeBegin 
	Attribute "identifier" "name" "unitcube"
	Bound [-.5 .5 -.5 .5 -.5 .5]
	TransformBegin 
		# far face
		Polygon "P" [.5 .5 .5 -.5 .5 .5 -.5 -.5 .5 .5 -.5 .5]
		Rotate 90. 0 1. 0
		# right face
		Polygon "P" [.5 .5 .5 -.5 .5 .5 -.5 -.5 .5 .5 -.5 .5]
		Rotate 90. 0 1. 0
		# near face
		Polygon "P" [.5 .5 .5 -.5 .5 .5 -.5 -.5 .5 .5 -.5 .5]
		Rotate 90. 0 1. 0
		# left face
		Polygon "P" [.5 .5 .5 -.5 .5 .5 -.5 -.5 .5 .5 -.5 .5]
	TransformEnd 
	TransformBegin 
		# bottom face
		Rotate 90. 1. 0 0
		Polygon "P" [.5 .5 .5 -.5 .5 .5 -.5 -.5 .5 .5 -.5 .5]
	TransformEnd 
	TransformBegin 
		# top face
		Rotate -90. 1. 0 0
		Polygon "P" [.5 .5 .5 -.5 .5 .5 -.5 -.5 .5 .5 -.5 .5]
	TransformEnd 
AttributeEnd 

###Information

RenderMan Interface Specification is Copyright © 2005-2016 Pixar. RenderMan © is a registered trademark of Pixar.