[Radiance-general] rotation

[Giulio Antonutto]

1) triangle must be rectangle, the longer leg is the X axis and with the 90° corner in 0,0,0. 

2) add to the triangle a line pointing in the main photometric axis

3) displace and rotate the triangle by the 90° corner, copy freely where you wish and use the line to understand where are they looking at.

4) save the file as a radiance file and note the modifier of the triangles, that ideally is the same for all of them (assuming you are placing 1 type of light)

now use:

5) replmarks -x the-object-to-copy.rad modifier-name the-file-with-the-triangles > the-file-with-the-light-in-place

the only variant is to use -i instead of -x but this applies to instances and therefore not good for your task (lights) since instances cannot have light inside.

hope this is a quick hands on,

for further information man replmarks will help :-)

ciao

G.

 

 

 

________________________________

From: radiance-general-bounces at radiance-online.org [mailto:radiance-general-bounces at radiance-online.org] On Behalf Of Mark de la Fuente
Sent: 16 August 2006 14:51
To: Radiance
Subject: RE: [Radiance-general] rotation

 

Giulio,

 

How would you do this?  Do you have an example?

 

Thanks

 

Mark

 

Message: 5
Date: Wed, 16 Aug 2006 10:35:26 +0100
From: "Giulio Antonutto" <Giulio.Antonutto at arup.com>
Subject: RE: [Radiance-general] rotation
To: "Radiance general discussion"
 <radiance-general at radiance-online.org>
Message-ID:
 <CC0B19F4C6132F4D9FDDEBF194200FB501739241 at ldcexc02.global.arup.com>
Content-Type: text/plain; charset="us-ascii"

 

why not to use replmarks?

 

draw triangles in your favourite 3d program and use them to feed
xform...

 

easy and quick...

 

ciao

 

G>

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