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Can Someone help me out. I'm trying to figure out the weird coloring on the
lighted portion of the bottom half of the sphere.
The image is at
http://news.povray.org/web.4bb6af70dba6e9c64fd370d20%40news.povray.org
<web.4bb6af70dba6e9c64fd370d20@news.povray.org>
The source is
Source is as follows:
Can Someone help me out. I'm trying to figure out the weird coloring on the
lighted portion of the bottom half of the sphere.
The image is at
http://news.povray.org/web.4bb6af70dba6e9c64fd370d20%40news.povray.org
<web.4bb6af70dba6e9c64fd370d20@news.povray.org>
The source is
Source is as follows:
#include "colors.inc"
#include "math.inc"
camera {
location <0.0, 1.5, -4.0>
direction 1.5*z
right x*image_width/image_height
look_at <0.0, 0.0, 0.0>
}
light_source {
<0, 0, 0> // light's position (translated below)
color rgb <1, 1, 1> // light's color
translate <-30, 30, -30>
}
#declare num = 8;
#declare fn_theta_deg_of_x_y = function(x,y) { mod(atan2d(y,x) + 360,360) }
#declare fn_block = function(x,y) {
-1*mod(floor(fn_theta_deg_of_x_y(x,y)/(180/num)),2) }
#declare fn_x_y_z = function(x,y) { fn_block(x,y) }
isosurface {
function { fn_block(x, y) }
contained_by { sphere { 0, 1.0 } }
isosurface [0.0]
accuracy 0.001
max_gradient 2000
pigment{color Red}
}
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