On 1/13/2016 10:47 AM, nyholku wrote:
>
> Hi,
>
> I'm fairly new to povray but otherwise not a noobie.
>
> I'm trying to simulate a confocal imaging system where I have a pattern that
> will be projected through a lens to a surface (and in the next phase project
> the projected pattern from the target  back through the same lens and a half
> transparent mirror  to an other surface (sensor).
>
> Something like in this sketch:
>
> http://www.eazycnc.com/temp/sketch.png
>
>
> I've created all the parts and individually they seem to be alright, however the
> 'photon mapping' is not working.
>
> To debug I've simplified the setup to just a spot light source that illuminates
> the pattern and a surface on which the light from that pattern should be
> visible.
>
> The illuminated pattern (Source in the code) looks like this when rendered in
> povray:
>
> http://www.eazycnc.com/temp/pic1.png
>
> And the surface (Target) that is supposed to shine some of this pattern's light
> looks like this:
>
> http://www.eazycnc.com/temp/pic2.png
>
> The code can be downloaded from here:
>
> http://www.eazycnc.com/temp/lens2.pov
>
> In the pic2 the source pattern can be seen through specular reflection but if I
> turn on the diffuse reflection and turn off the specular reflection then the
> 'Target' is just black where as I think it should 'glow/reflect' some green
> light (of course it should not show the patter because the lens is not there
> yet).
>
> So what am I doing wrong, or is this a wrong approach or is povray the wrong
> tool for this?
>
>
>
>
>
>
>
>


Your first link is dead. There is no sketch.


Mike

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