In article <5669d15b$1@news.povray.org>, ano### [at] anonymousorg says...

> Bu... wha... hey, wait!
> Mind giving me the exact details of the texture you're having problems
> with? Still want to get down to the heart of the matter.

I was a little hasty with the 'send' button before because I wanted to 
mention I didn't think you'd want such variance between 3.7.0 and 3.7.1

It's the Jade pigment in textures.inc.  I also noticed it with 
Apocolypse.
Oddly, I also use Blood_Marble and Blue_Sky3 and those seem fine.

I'm gonna go out on a limb and say this scene gives different results 
for all versions of 3.7.0 vs. 3.7.1.

// PoVRay 3.7 Scene File " ... .pov"
// author:  ...
// date:    ...
//---------------------------------------------------------------------
#version 3.7;
global_settings{ assumed_gamma 1.0 }
global_settings {
        noise_generator 1 // or 2 or 3
}
//---------------------------------------------------------------------
#include "colors.inc"
#include "textures.inc"
//---------------------------------------------------------------------
// camera 
------------------------------------------------------------------
#declare Camera_0 = camera {perspective angle 75        // front view
                            location  <0.0 , 1.0 ,-3.0>
                            right     x*image_width/image_height
                            look_at   <0.0 , 1.0 , 0.0>}
camera{Camera_0}
// sun 
----------------------------------------------------------------------
light_source{< 3000,3000,-3000> color White}
// sky 
----------------------------------------------------------------------
sky_sphere { pigment { gradient <0,1,0>
                       color_map { [0.00 rgb <0.6,0.7,1.0>]
                                   [0.35 rgb <0.1,0.0,0.8>]
                                   [0.65 rgb <0.1,0.0,0.8>]
                                   [1.00 rgb <0.6,0.7,1.0>] 
                                 } 
                       scale 2         
                     }
           }
// ground 
-------------------------------------------------------------------
plane{ <0,1,0>, 0 
       texture{ pigment{ checker color rgb<1,1,1>*1.2 color rgb
<0.25,0.15,0.1>*0}
                finish { phong 0.1}
              }
     }
//----------------------------------------------------------------------
//---------------------------- objects in scene ------------------------
//----------------------------------------------------------------------

// sample sphere
sphere { <0,1.5,0>, 1.00 
	texture {
		pigment {Jade}
	}
       }

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