Hm, it's not my day I think. O.k. let's start:

My machine is still a Athlon 1 GHz, 396 MB RAM, Win98 SE, POV-Ray 3.5
Beta 4.

At first I tried to render a grey scale image for a height field. I
copied the source code from the help section 3.4.3  Height Field Object:

//-- Start of code --//
#include "colors.inc"
global_settings
        {
        assumed_gamma 2.2
        hf_gray_16
        }

camera { location <0, 0, -10> look_at 0}

light_source { <0, 20, -100> color White }

plane { z, 10
        pigment {wrinkles
                color_map
                        {
                        [0 0.3*White]
                        [1 White]
                        }
                }
        }
//-- End of code --//

This gives the error: File Init Error: Cannot open output file

This error occurs with all file types POV-Ray can do. After commenting
out the "hf_gray_16" in the global_settings it renders fine.


Second thing:

POV-Ray does not accept PNG-Files as input file for a height_field. It
gives the error: Parse Error: Unknown image type in image_height_at.

This has also an effect on the rerendering of the insert menu images.
The image for the height_field+image_map in Menu Insert/Shapes. This
doesn't render too.

So, I go to bed now, before I find more worse things ;-)

By,

Bonsai

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