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On 24-2-2019 20:20, MichaelJF wrote:
> Hi Thomas,
> this time a didn't click accidentally into the image while converting it
> to jpg with the GIMP, but with purpose. In the marked area you can see
> the sharp edges I mean. The code was
>
> #if(SteamFog)
> #declare DensBoden1= density {
> agate
> agate_turb 1
> density_map {
> [ 0 rgb <1,1,1>/5 ]
> //[ 0.02 rgb <1,1,1> ]
> [ 0.03 rgb <0,0,0> ]
> [ 1 rgb <0,0,0> ]
> }
> }
>
> #declare DensBoden3= density {
> agate
> agate_turb 1
> density_map {
> [ 0 rgb <1,1,1>/5 ]
> //[ 0.02 rgb <1,1,1> ]
> [ 0.02 rgb <0,0,0> ]
> [ 1 rgb <0,0,0> ]
> }
> scale <5,50,5>
> //warp { turbulence <0.5,0.1,0.5> }
> //rotate <0,90,0>
> }
>
> #declare DensLuft = density {
> rgb <0,0,0>
> }
> box { <-150,0.001,-15>,<150.01,1,150> pigment { rgbt 1 } hollow
> interior {
> media {
> scattering { 2, White/5 }
> //absorption <0,0.25,1>
> //intervals 25
> samples 64
> density {
> gradient y
> density_map {
> [ 0 DensBoden1 ]
> [ 0.5 DensBoden1 ]
> [ 0.6 DensLuft ]
> [ 1 DensLuft ]
> }
> scale <1,2,1> translate <0,-0.5,0> // avoid repetition
> at height 1
> warp { turbulence <0.01,0.4,0.01> }
> }
> }
> media {
> scattering { 2, White/5 }
> //absorption <0,0.25,1>
> //intervals 25
> samples 64
> density {
> gradient y
> density_map {
> [ 0 DensBoden3 ]
> [ 0.5 DensBoden3 ]
> [ 0.6 DensLuft ]
> [ 1 DensLuft ]
> }
> scale <1,2,1> translate <0,-0.5,0> // avoid repetition
> at height 1
> warp { turbulence <0.01,0.3,0.01> }
> }
> }
> #if(GlobalFog)
> media { scattering {2, White/5 } density { rgb 0.001 } }
> #end
> }
> }
> #if(GlobalFog)
> box { <-100,1.001,-5.9>,<100,25,130> pigment { rgbt 1} hollow
> interior {
> media { scattering {2, White/5 } density { rgb 0.0001 } }
> }
> }
> #end
> #end
>
> GlobalFog was activated. May be I have overlooked some thing or the other.
>
My first tests of your code confirms me that the sharp edge is the
result of the container boundary, not of any different behaviour of density.
I want to test different options yet.
--
Thomas
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