[Radiance-general] Acrylic Material

[christy vidiyanti]

hi, i've just install radiance 5.0.a-win32. i I has been successfully gener
ate global photon map using command:
mkpmap -apg scene.gpm 10000 -apo prisma1a -t 60 tes.oct

But, failed when rpict. the command is:
rpict -ab 1 -apg scene.gpm 50 -vp 0.013 3.127 1.510 -vd 5.385 0.025 -0.040
-vu 0 0 1 -vh 60 -vv 34 -vs 0 -vl 0 tes.oct

The error message is:
rpict: fatal - command line error at '-apg'
rpict: 0 rays, 0.00% after 0.0000 hours



-----------------------------------------------------------
Salam,
*Christy Vidiyanti*


On Tue, May 5, 2015 at 10:36 PM, Greg Ward <gregoryjward at gmail.com> wrote:

> Hi Christy,
>
> This is a case where you may need to use genBSDF to create a virtual
> system using your prismatic panel, which can be modeled with the genprism
> command.  You need to pay careful attention to the man page:
>
>
> http://www.radiance-online.org/learning/documentation/manual-pages/pdfs/genprism.pdf
>
> In particular, the direction you extrude the surface determines the
> orientation of the normals, which matters for the dielectric material type.
>
> Following genprism, you can use the xform command with a -a option to
> repeat the extruded prism as many times as needed with the appropriate
> positioning (-t option).
>
> The genBSDF command can be used with pkgBSDF to place the final system
> into your scene.
>
> You could also try rendering using the new photon map routines that have
> been recently added to the Radiance HEAD by Roland Schregle, but this is
> only if you have the most up-to-date binaries.
>
> Unfortunately, none of these steps are simple, and this is a good
> challenge for an advanced Radiance user.  It would probably take me several
> hours to do, myself.
>
> Cheers,
> -Greg
>
> *From: *christy vidiyanti <christy.vidiyanti at gmail.com>
>
> *Subject: *[Radiance-general] Acrylic Material
>
> *Date: *May 4, 2015 8:31:57 PM PDT
>
>
>  Hello,
> I have a question about acrylic materials. i wanna to modelling a
> trapezoidal shape with acrylic material. I hope Radiance can simulate the
> behaviour of light direction, such as refraction dan internal reflection.
>
>  I have tried to give dielectric material, but failed.
> and then i wanna give a prism material, but in prism materials the shape
> must be a planar shape. but the shape that i want is trapezoidal.
> the image of example room with shading acrylic can be downloaded in
> https://www.dropbox.com/s/2kswj2ws0x0e6ni/room.jpg?dl=0
>
> the image of shading acrylic that i want can be downloaded in
> https://www.dropbox.com/s/qk2ozpjktc3k1ol/acrylic%20material.jpg?dl=0
> -----------------------------------------------------------
> Best Regars,
> *Christy Vidiyanti*
>
>
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>
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