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Go言語でRenderMan その2

rman.goにLightSourceを追加する

func LightSource(name string, varargs ...interface{}) {
pName := C.CString(name)
defer C.free(unsafe.Pointer(pName))
names, values, ownership := unzipArgs(varargs...)
defer freeArgs(names, ownership)
nArgs := C.RtInt(len(varargs) / 2)
pNames, pVals := safeArgs(names, values)
C.RiLightSourceV(pName, nArgs, pNames, pVals)
}



Teapotをレンダリング

package main

import (
ri "rman"
)

func color(r, g, b float32) [3]float32 {
return [3]float32{r, g, b}
}

func point(x, y, z float32) [3]float32 {
return [3]float32{x, y, z}
}

func main() {
launch := "launch:prman? -t -ctrl $ctrlin $ctrlout -capture test2.rib"
ri.Begin(launch)
ri.Format(512, 480, 1)
ri.Display("test2", "framebuffer", "rgba")
ri.ShadingRate(4)
ri.Option("limits", "int threads", 4)
ri.PixelSamples(4, 4)
ri.Declare("color", "color")
ri.Imager("background","color",color(0.2,0.4,0.6))
ri.Projection("perspective", "fov", 45.)
ri.Translate(0, 0, 9)
ri.WorldBegin()
ri.Declare("from", "point")
ri.Declare("intensity", "float")
ri.LightSource("pointlight","intensity",300. ,"from", point(-10,10,-10))
ri.LightSource("pointlight","intensity",300. ,"from", point(10,10,-10))
ri.LightSource("pointlight","intensity",300. ,"from", point(-10,-10,-10))
ri.Translate(0, -1.2, 0)
ri.Rotate(-110,1,0,0)
ri.Color(0.9, 0, 0.1)
ri.Surface("plastic")
ri.Geometry("teapot")
ri.WorldEnd()
ri.End()
}


test2.jpg
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