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// Persistence of Vision Ray Tracer Scene Description File
// File: slipping.pov
// Vers: 3.1
// Desc: A way to slip textures past one another in a circle at different
rates
// Date: 99.425
// Auth: Bob Hughes mailto://inversez@aol.com?Subject=PoV-Scene
// Note: the second #switch in each defined layered texture will not work.
// This scene hasn't been made to be adjustable for other situations, just
an example.
// white pointlight at camera position
#declare LCX = 0;
#declare LCY = -10;
#declare LCZ = -10;
light_source { <LCX,LCY,LCZ> color rgb <1,1.25,1.5>
}
camera
{ //fisheye //to enclose this particular scene
location <LCX,LCY,LCZ>
up y right 4/3*x //squared off for this also
angle 44//34
look_at <0, -1.66, 0>
}
#declare TA = 0; //turbulence amount (does not work for looped animation)
//1 ramp, 2 sine, 3 scallop, 0 or other default triangle_wave
#declare WT1 = 0;
#declare WT2 = 3;
// spiral arms in ring (banded) textures
#declare S1 =
texture {pigment {spiral1 4 turbulence .05*TA color_map {
[0 color rgb .5]
[1 color rgb 1.5]
}
#switch (WT1)
#case (1)
ramp_wave
#break
#case (2)
sine_wave
#break
#case (3)
scallop_wave
#break
#else //default triangle_wave
#end
//rotate 0*z
} normal {granite .25 scale .01}
finish {ambient <.2,.3,.4>*3 diffuse .5}
}
texture {pigment {onion turbulence .1*TA color_map {
[0 color rgbt 1]
[.125 color rgbt 0]
} //sine_wave
/*
#switch (WT2)
#case (1)
ramp_wave
#break
#case (2)
sine_wave
#break
#case (3)
scallop_wave
#break
#else //default triangle_wave
#end
*/
} normal {granite .25 scale .001}
scale 3
}
#declare S2 =
texture {pigment {spiral1 4 turbulence .05*TA color_map {
[0 color rgb .25]
[1 color rgb 1.25]
}
#switch (WT1)
#case (1)
ramp_wave
#break
#case (2)
sine_wave
#break
#case (3)
scallop_wave
#break
#else //default triangle_wave
#end
//rotate 0*z
} normal {granite .25 scale .01}
finish {ambient <.2,.3,.4>*2 diffuse .5}
}
texture {pigment {onion turbulence .1*TA color_map {
[0 color rgbt 0]
[.125 color rgbt 1]
[.25 color rgbt 0]
} //sine_wave
/*
#switch (WT2)
#case (1)
ramp_wave
#break
#case (2)
sine_wave
#break
#case (3)
scallop_wave
#break
#else //default triangle_wave
#end
*/
} normal {granite .25 scale .001}
scale 3
}
#declare S3 =
texture {pigment {spiral1 4 turbulence .05*TA color_map {
[0 color rgb 0]
[1 color rgb 1]
}
#switch (WT1)
#case (1)
ramp_wave
#break
#case (2)
sine_wave
#break
#case (3)
scallop_wave
#break
#else //default triangle_wave
#end
//rotate 0*z
} normal {granite .25 scale .01}
finish {ambient <.2,.3,.4>*1 diffuse .5}
}
texture {pigment {onion turbulence .1*TA color_map {
[.125 color rgbt 0]
[.25 color rgbt 1]
[.5 color rgbt 0]
} //sine_wave
/*
#switch (WT2)
#case (1)
ramp_wave
#break
#case (2)
sine_wave
#break
#case (3)
scallop_wave
#break
#else //default triangle_wave
#end
*/
} normal {granite .25 scale .001}
scale 3
}
#declare S4 =
texture {pigment {spiral1 4 turbulence .05*TA color_map {
[0 color rgb 0]
[1 color rgb 1]
}
#switch (WT1)
#case (1)
ramp_wave
#break
#case (2)
sine_wave
#break
#case (3)
scallop_wave
#break
#else //default triangle_wave
#end
//rotate 0*z
} normal {granite .25 scale .01}
finish {ambient <.2,.3,.4>*.75 diffuse .5}
}
texture {pigment {onion turbulence .1*TA color_map {
[.25 color rgbt 0]
[.5 color rgbt 1]
[1 color rgbt 0]
} //sine_wave
/*
#switch (WT2)
#case (1)
ramp_wave
#break
#case (2)
sine_wave
#break
#case (3)
scallop_wave
#break
#else //default triangle_wave
#end
*/
} normal {granite .25 scale .001}
scale 3
}
union {
//spiral arm surface
disc {<0,0,0>,<0,0,1>,2.5
texture {average texture_map {
[1 S1 rotate clock*720*z]
[1 S2 rotate clock*360*z]
[1 S3 rotate clock*180*z]
[1 S4 rotate clock*90*z] //minimum, based upon spiral arm number
} sine_wave scale .85 }
scale 2 //fit to view
}
//overlay of central bright region
disc {<0,0,-.001>,<0,0,1>,2.5
texture {pigment {onion turbulence .1*TA color_map {
[.05 color rgbft <1,.95,.75,.5,.125>]
[.1 color rgbft <.9,.85,.8,.75,.25>]
[.2 color rgbft <.9,.9,.9,.5,.25>]
[.3 color rgbft <.85,.9,1,.25,.75>]
[.9 color rgbft <1,1,1,1,1>]
} ramp_wave }
normal {granite .25 scale .005}
finish {ambient 1}
scale 2.5
} scale 2
}
scale 1 rotate 0 translate 0
}
//END
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