Hello!
I have an error when animating height fields:
The frist frame is rendered O.K. but the following have a missing
"diffuse" contribution of color in the height field only the "ambient"
is used. Also there is a smaller number of
objects counted in the options screen for the later pictures compared
with the first.
I am using Povray 3.1 Dos version.
Any ideas?
Greetings
    Karl-Heinz

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Hello the Group!
Here is a more detailed description of the error:
I have a union of a hight field together with a plane I use as a sky.
With the first frame of an animation the keyword no_shadow is recognized
with the sky plane.
With all following frames of an animation loop the objects of that union
are
treated as only one "frame level object" resulting in the keyword
no-shadow
being ignored!
I'll have the sample file attatched to this message. (Hope you will be
able to read it...)
Run this file with any kind of animation loop. I took out all references
to the clock
variable so it does not matter what clock values you will use...
I for myself have cured the problem by eliminating the union (which is
originally inside
an include file) and installing the objects separately. The png of the
hight field I have changed to the standard png which is in the POVRay
distribution.
Have a nice weekend
       Karl-Heinz

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Attachments:
Download 'worlerro.pov.txt' (2 KB)

I am at a loss to explain the problem, but if you use

object { Swamp no_shadow }

everything will continue forth as expected.

GrimDude
vos### [at] arkansasnet

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Same thing here, Windows version. I know of problems with putting things
like 'scale' in between objects listed in a union but this is altogether
different it seems. No reason for it to be ignored even when added
directly to the plane statement yet it is ignored there as well.
Puzzling how no_shadow works once only too, I agree.
GrimDude has the answer so long as you needn't go below the HF. Shadows
or rather shading should still appear on itself okay.


GrimDude wrote:
> 
> I am at a loss to explain the problem, but if you use
> 
> object { Swamp no_shadow }
> 
> everything will continue forth as expected.
> 
> GrimDude
> vos### [at] arkansasnet

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