[Radiance-general] RE : Light Shelf Reflections

[Shamim Javed]

Apologies for sending the wrong link.  Here is one that should work!

https://www.dropbox.com/sh/a8e7o5mugbluqdn/GVS1vZKjNC


Shamim.



On Tue, Mar 12, 2013 at 1:00 PM, shailan zareiy <sh.zareiy at gmail.com> wrote:

> hi Shamim
> do you assign the mirror surfaces as secondary light source? if you use
> ecotect for modelling, in the material assignment of this software, in the
> advanced export you should write this discription :
> void mirror materail name
> 0
> 0
> 3  1 1 1
> does it solve the problem?
>
>
> On Mon, Mar 11, 2013 at 6:45 PM, Compagnon Raphaël <
> Raphael.Compagnon at hefr.ch> wrote:
>
>> If all these surfaces are mirrors, then you cannot see anything....
>> unless:
>> - there is a non-mirror reflecting object somewhere in your scene that is
>> supoposed to be lit by the multiple-reflecting light path; since it will
>> reflect light in many directions you should see it!
>> or
>> - your point of view is located somewhere on the multiple-reflecting
>> light path and your view direction points towards it. Then you should
>> directly see the light source appearing as an image on the last mirror.
>>
>> Raphaël
>> ________________________________
>> De : Shamim Javed [javeds2006 at gmail.com]
>> Date d'envoi : lundi 11 mars 2013 15:56
>> À : Radiance general discussion
>> Objet : Re: [Radiance-general] Light Shelf Reflections
>>
>> I am hoping to see multiple reflections of the light beam reflected off
>> the light shelf top surface in both the floor and the ceiling (all of which
>> are mirror surfaces).
>>
>> On Mon, Mar 11, 2013 at 10:40 AM, Jack de Valpine <jedev at visarc.com
>> <mailto:jedev at visarc.com>> wrote:
>> Hi Shamim,
>>
>> What changes are you expecting to see?
>>
>> -Jack
>>
>> --
>> Jack de Valpine
>> President
>>
>> Visarc Incorporated
>> www.visarc.com<http://www.visarc.com>
>>
>> channeling technology for superior design and construction
>>
>> On 3/11/2013 10:03 AM, Shamim Javed wrote:
>> I am using Radiance via Ecotect.  I have played around with changing the
>> values for -dr, -av and -ab without seeing any change in the image output.
>>
>> On Mon, Mar 11, 2013 at 9:20 AM, Christopher Rush <
>> Christopher.Rush at arup.com<mailto:Christopher.Rush at arup.com>> wrote:
>> Are you using the default parameters for rpict/rtrace? Have you tried
>> setting the -dr parameter greater than 2? If you post the command you are
>> using to calculate the reflections, it may be easier to comment. I suspect
>> it will be more complicated than the -dr setting, but that's a start.
>>
>> >  I have been unsuccessful, so far, to generate  more than two
>> reflections.
>>
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