[Pbrt-discuss] problem with the sphere

[Mohamed Yessine Yengui]

the version is pbrt-1.03.

2009/10/30 John Danks <john.danks at gmail.com>


> Which version of pbrt are you using? I was not able to reproduce the

> problem with version 2.

>

> On Fri, Oct 30, 2009 at 2:14 PM, Mohamed Yessine Yengui

> <yengui.yessine at gmail.com> wrote:

> > Hello!

> >

> > When I tried to render the sphere model with pbrt, I noticed that there

> was

> > a dark point in the resulting image, normally, this point must be

> > illuminated. After analyzing, I perceived that the normal vector computed

> on

> > the sphere is not continuous. Could anyone help me to resolve this

> problem?

> >

> > This is my .pbrt file and you find in attached the resulting image.  The

> > dark point is in the red circle.

> >

> >

> >

> >  Film "image" "string filename"  ["sphere.exr"]

> >         "integer xresolution" [500] "integer yresolution" [500]

> >    Sampler  "bestcandidate"  "integer pixelsamples" [4]

> >    LookAt -12 -3 12 0 0 0 0 1 0

> >     Camera "orthographic"

> >     WorldBegin

> >    AttributeBegin

> >    CoordSysTransform "camera"

> >      LightSource "distant"  "color I" [ 3 3 3 ] "point from" [0 0 0]

> "point

> > to" [-1 -1 1]

> >     AttributeEnd

> >     AttributeBegin

> >      Material "plastic" "color Kd" [1.0 1.0 1.0] "color Ks" [8 8 8]

> "float

> > roughness" [.006]

> >     Shape "sphere" "float radius" [.3]

> >      AttributeEnd

> >     WorldEnd

> >

> > Thanks

> > _______________________________________________

> > pbrt-discuss mailing list

> > pbrt-discuss at pbrt.org

> > http://six.pairlist.net/mailman/listinfo/pbrt-discuss

> >

> >

> _______________________________________________

> pbrt-discuss mailing list

> pbrt-discuss at pbrt.org

> http://six.pairlist.net/mailman/listinfo/pbrt-discuss

>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://six.pairlist.net/pipermail/pbrt-discuss/attachments/20091030/b4814929/attachment.htm>