func Test_SimpleExampleWithConditionals(t *testing.T) {
Convey("Simple Example with Conditionals", t, func() {
pipe := DefaultFilePipe()
/* use a custom unique generator with a prefix for the light handles */
lights := NewPrefixLightUniqueGenerator("light_")
mgr := NewHandleManager(nil, lights, nil)
ctx := NewContext(pipe, mgr, &Configuration{PrettyPrint: true})
ri := RI(ctx)
ri.Begin("output/exampleConditionals.rib")
ri.Display("sphere.tif", "file", "rgb")
ri.Format(320, 240, 1)
ri.Projection(PERSPECTIVE, RtToken("fov"), RtFloat(30))
ri.Translate(0, 0, 6)
ri.Option("user", RtToken("string renderpass"), RtString("red"))
ri.WorldBegin()
ri.LightSource("ambientlight", RtToken("intensity"), RtFloat(0.5))
ri.LightSource("distantlight", RtToken("intensity"), RtFloat(1.2), RtToken("from"), RtIntArray{0, 0, -6}, RtToken("to"), RtIntArray{0, 0, 0})
ri.IfBegin("$user:renderpass == 'red'")
ri.Color(RtColor{1, 0, 0})
ri.ElseIf("$user:renderpass == 'blue'")
ri.Color(RtColor{0, 0, 1})
ri.Else()
ri.Color(RtColor{0, 1, 0})
ri.IfEnd()
ri.Sphere(1, -1, 1, 360)
ri.WorldEnd()
So(ri.End(), ShouldBeNil)
/* output gathered stats */
p := pipe.GetByName(PipeToStats{}.Name())
So(p, ShouldNotBeNil)
s, ok := p.(*PipeToStats)
So(s, ShouldNotBeNil)
So(ok, ShouldBeTrue)
p = pipe.GetByName(PipeTimer{}.Name())
So(p, ShouldNotBeNil)
t, ok := p.(*PipeTimer)
So(t, ShouldNotBeNil)
So(ok, ShouldBeTrue)
fmt.Printf("%s%s", s, t)
})
}
/* go test -bench=. */
func Benchmark_SimpleExampleNumberHandlers(b *testing.B) {
for i := 0; i < b.N; i++ {
ri, _ := DefaultPipeline(nil)
ri.Begin("simple.rib")
ri.Display("sphere.tif", "file", "rgb")
ri.Format(320, 240, 1)
ri.Projection(PERSPECTIVE, RtToken("fov"), RtFloat(30))
ri.Translate(0, 0, 6)
ri.WorldBegin()
ri.LightSource("ambientlight", RtToken("intensity"), RtFloat(0.5))
ri.LightSource("distantlight", RtToken("intensity"), RtFloat(1.2), RtToken("from"), RtIntArray{0, 0, -6}, RtToken("to"), RtIntArray{0, 0, 0})
ri.Color(RtColor{1, 0, 0})
ri.Sphere(1, -1, 1, 360)
ri.WorldEnd()
ri.End()
}
}
func main() {
ri, _ := rigo.DefaultPipeline(&rigo.Configuration{PrettyPrint: true})
ri.Begin("./scene.rib")
ri.ArchiveRecord("structure", "Scene regressions/001")
ri.ArchiveRecord("structure", "Regression 001")
ri.Display("./scene.tif", "file", "rgb")
ri.Format(300, 300, 1)
ri.Translate(0, 0, 6)
ri.WorldBegin()
ri.Color(RtColor{1, 0, 0})
ri.Sphere(1, -1, 1, 360)
ri.WorldEnd()
if err := ri.End(); err != nil {
fmt.Fprintf(os.Stderr, "End() error -- %v\n", err)
os.Exit(1)
}
}
func Test_HandleCallbacks(t *testing.T) {
lighthandle := func(name RtName, light RtLightHandle) {
fmt.Printf("LightHandle -- %s %s\n", name, light)
}
Convey("Handle callbacks pipelining", t, func() {
pipe := NewPipe()
callback := new(PipeHookHandleCallback)
callback.LightHandler = lighthandle
pipe.Append(callback)
mgr := NewHandleManager(nil, NewPrefixLightUniqueGenerator("light_"), nil)
ri := RI(NewContext(pipe, mgr, nil))
So(ri.Begin("output/filters-simple.rib"), ShouldBeNil)
ri.Display("sphere.tif", "file", "rgb")
ri.Format(320, 240, 1)
ri.Projection(PERSPECTIVE, RtToken("fov"), RtFloat(30))
ri.Translate(0, 0, 6)
ri.WorldBegin()
ambient, _ := ri.LightSource("ambientlight", RtToken("intensity"), RtFloat(0.5))
So(ambient, ShouldNotBeNil)
ri.LightSource("distantlight", RtToken("intensity"), RtFloat(1.2), RtToken("from"), RtIntArray{0, 0, -6}, RtToken("to"), RtIntArray{0, 0, 0})
ri.Illuminate(ambient, false)
ri.Color(RtColor{1, 0, 0})
ri.Sphere(1, -1, 1, 360)
ri.WorldEnd()
So(ri.End(), ShouldBeNil)
})
}
func Benchmark_SimpleExampleUniqueHandlers(b *testing.B) {
for i := 0; i < b.N; i++ {
pipe := NullPipe()
mgr := NewHandleManager(nil, NewLightUniqueGenerator(), nil)
ctx := NewContext(pipe, mgr, nil)
ri := RI(ctx)
ri.Begin("simple.rib")
ri.Display("sphere.tif", "file", "rgb")
ri.Format(320, 240, 1)
ri.Projection(PERSPECTIVE, RtToken("fov"), RtFloat(30))
ri.Translate(0, 0, 6)
ri.WorldBegin()
ri.LightSource("ambientlight", RtToken("intensity"), RtFloat(0.5))
ri.LightSource("distantlight", RtToken("intensity"), RtFloat(1.2), RtToken("from"), RtIntArray{0, 0, -6}, RtToken("to"), RtIntArray{0, 0, 0})
ri.Color(RtColor{1, 0, 0})
ri.Sphere(1, -1, 1, 360)
ri.WorldEnd()
ri.End()
}
}
func Test_RISExamples(t *testing.T) {
Convey("RIS Examples", t, func() {
Convey("PxrConstant -- bxdf shader", func() {
cuser, err := user.Current()
So(err, ShouldBeNil)
pipe := DefaultFilePipe()
So(pipe, ShouldNotBeNil)
ctx := NewContext(pipe, nil, &Configuration{PrettyPrint: true})
ri := RI(ctx)
ri.Begin("output/risBxdfPxrConstant.rib")
ri.ArchiveRecord("structure", "Scene Bxdf Constant")
ri.ArchiveRecord("structure", "Creator %s", Author)
ri.ArchiveRecord("structure", "CreationDate %s", time.Now())
ri.ArchiveRecord("structure", "For %s", cuser.Username)
ri.ArchiveRecord("structure", "Frames 1")
ri.Display("risbxdf_sphere.tif", "file", "rgb")
ri.Format(320, 240, 1)
ri.PixelFilter(GaussianFilter, 4, 4)
ri.Imager("background", RtToken("color color"), RtColor{.6, .6, .6}, RtToken("float alpha"), RtFloat(1))
ri.Projection(PERSPECTIVE, RtToken("fov"), RtFloat(30))
ri.Translate(0, 0, 6)
ri.WorldBegin()
ri.Color(RtColor{1, 0, 0})
/* wrap the context with the RIS interface */
ris := RIS(ctx)
/* first we setup a pattern RIS */
pattern, err := ris.Pattern("PxrHSL", "-")
So(err, ShouldBeNil)
So(pattern, ShouldNotBeNil)
So(pattern.Name(), ShouldEqual, "PxrHSL")
w := pattern.Widget("inputRGB")
So(w, ShouldNotBeNil)
So(w.SetValue(RtColor{0, 0, 0.3}), ShouldBeNil)
ri.Pattern(pattern.Name(), pattern.Handle(), RtToken("inputRGB"), RtColor{0, 0, 0.3})
/* load the PxrConstant bxdf shader, $RMANTREE/lib/RIS/bxdf/Args/PxrConstant.args is parsed
* for the constant shader.
*/
constant, err := ris.Bxdf("PxrConstant", "-")
So(err, ShouldBeNil)
So(constant, ShouldNotBeNil)
/* we want to manipulate the emit color of the shader so we
* ask the shader for the widget interface
*/
w = constant.Widget("emitColor")
So(w, ShouldNotBeNil)
/* set the color via the widget; SetValue(Rter) */
So(w.SetValue(RtColor{0.3, 0.2, 0.1}), ShouldBeNil)
/* we know it's a color so we can convert directly to the
* RtColorWidget concrete type
*/
cw, ok := w.(*RtColorWidget)
So(ok, ShouldBeTrue)
So(cw, ShouldNotBeNil)
/* we can directly set the color via our RtColorWidget :
* overriding our previous SetValue
*/
So(cw.Set(RtColor{0.1, 0.2, 0.3}), ShouldBeNil)
/* As the widget (w & cw) is linked to the shader (constant), we can override
* what we set with the widget directly at the shader */
So(constant.SetValue(RtToken("emitColor"), RtColor{0.45, 0.45, 0.45}), ShouldBeNil)
/* The widget should be in sync with what we set at the shader */
So(cw.Value().Equal(RtColor{0.45, 0.45, 0.45}), ShouldBeTrue)
/* Here we over the shader again by including the emitColor inline; the constant.Handle()
* includes the handle created for the shader */
ri.Bxdf("PxrConstant", constant.Handle(), RtToken("color emitColor"), RtColor{1, 0.25, 0.25})
/* now instead we can reference the pattern we set earlier and replace the emitColor with a reference */
refid := pattern.ReferenceOutput("resultRGB")
So(refid, ShouldEqual, fmt.Sprintf("%s:resultRGB", string(pattern.Handle())))
So(constant.SetReferencedValue("emitColor", refid), ShouldBeNil)
/* this is another way of writing our shader : using the emitColor that we actually set above */
ri.Bxdf(constant.Name(), constant.Handle())
ri.Sphere(1, -1, 1, 360)
ri.WorldEnd()
So(ri.End(), ShouldBeNil)
/* gather and print the statistics and time the
* pipe took */
p := pipe.GetByName(PipeToStats{}.Name())
So(p, ShouldNotBeNil)
s, ok := p.(*PipeToStats)
So(s, ShouldNotBeNil)
So(ok, ShouldBeTrue)
p = pipe.GetByName(PipeTimer{}.Name())
So(p, ShouldNotBeNil)
t, ok := p.(*PipeTimer)
So(t, ShouldNotBeNil)
So(ok, ShouldBeTrue)
fmt.Printf("%s%s", s, t)
})
})
}