OK!  I found out why my animation was intermittently getting a
fierce shadow-eating glare.  I started commenting out little
sections at a time until I found the culprit.  It's the grass!
Can you imagine that?  Aside from a thousand mesh triangles,
the problem must be the txtGrass texture.  If you could take
a look at it below and possibly suggest some way to fix the
intermittent glare problem caused by it, I would appreciate it.
Thanks for commenting, Chris!  Maybe this is enough infor-
mation.

Here is the texture:

#declare Blanc1=rgb<0.90,0.81,0.81>;
#declare Green1=rgb<230,170,50>/255;
#declare Green2=rgb<110,160,8>/255;
#declare Green1=rgb<0.4,1,0.3>*0.4;
#declare Green2=rgb<60,160,8>/255;
// --------------------------------------
// Grass texture
// --------------------------------------
#declare pigSpotted =pigment {
spotted
    color_map {
        [0.0, 0.2   color Tan*0.1 color Tan*0.4]
        [0.2, 0.3   color Tan*0.4 color Green1]
        [0.3, 1.01   color Green1 color Green1*1.2]
    }
}

#declare pigEarth =pigment {
    spotted
    color_map {
        [0 color Tan*0.3]
        [0.6 color Tan*0.3]
        [0.6 color Green1*0.4]
        [1   color Green1*0.4]
    }
}
#declare pigGreen=pigment{Green2*1.3}
//#declare pigSpotted=pigment{Red}
//#declare pigEarth=pigment{Blue}
#declare txtGrass=texture {

                pigment {
                        gradient y
                        turbulence 0.2
                                pigment_map {
                                    [0.0 pigEarth]
                                    [0.3 pigGreen]
                                    [0.9 pigSpotted]
                                    [1.00 pigEarth]
                                }
                        }

        finish{ambient 0.01 diffuse 0.7 specular 0.2 roughness 0.015}
        scale <0.001,1,0.001>

}


"Christopher James Huff" <cja### [at] earthlinknet> wrote in message
news:cjameshuff-469067.16092108032004@news.povray.org...
> In article <404cdf7e@news.povray.org>,
>  "Michael Robison" <zsp### [at] gtenet> wrote:
>
> > I've got a model of our house and the camera travels through the rooms.
> > I've developed a serious problem with the animation going from normal
> > in one frame to bathed in a glaring light in the next frame.  What would
> > cause something I'm looking at in one frame to all of a sudden be
> > almost washed out in the next?  The only thing moving in the animation
> > is the camera.
>
> Maybe you're seeing a highlight...too little information to really tell.
>
> --
> Christopher James Huff <cja### [at] earthlinknet>
> http://home.earthlink.net/~cjameshuff/
> POV-Ray TAG: <chr### [at] tagpovrayorg>
> http://tag.povray.org/

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