# [Radiance-material definition] glass

i m a radiance beginner as you can see reading what follows..
i m wondering how to describe glasses (the same refraction index) that are different in thickness... (5mm, 10mm...)
(i m modeling rooms with different windows, single and double glassed ones)

void glass glass15mm
0
tr tg tb

where "ri" is 1.51

but where it is thickness?

should i use the interface primitive and two surfaces at different distances?

thanks in advice for helping me

[email protected]

pillo wrote:

i m a radiance beginner as you can see reading what follows..
i m wondering how to describe glasses (the same refraction index) that
are different in thickness... (5mm, 10mm...)
(i m modeling rooms with different windows, single and double glassed
ones)

void glass glass15mm
0
0
tr tg tb

where "ri" is 1.51

but where it is thickness?

The GLASS primitive is optimized for glass of infinitessimal thickness.
You'll probably want to use the DIELECTRIC or INTERFACE material
instead, which allows you to specify the trasmittance per unit length.

See ya!

Â·Â·Â·

--
"Life is too short for core dumps"

thanks!!!

i ll try it as soon as possible!

pillo

Lunedï¿½, febbraio 18, 2002, alle 01:07 , Roland Schregle ha scritto:

Â·Â·Â·

pillo wrote:

i m a radiance beginner as you can see reading what follows..
i m wondering how to describe glasses (the same refraction index) that
are different in thickness... (5mm, 10mm...)
(i m modeling rooms with different windows, single and double glassed
ones)

void glass glass15mm
0
tr tg tb

where "ri" is 1.51

but where it is thickness?

The GLASS primitive is optimized for glass of infinitessimal thickness.
You'll probably want to use the DIELECTRIC or INTERFACE material
instead, which allows you to specify the trasmittance per unit length.

See ya!

--
"Life is too short for core dumps"
_______________________________________________
[email protected]

thanks!!!

i ll try it as soon as possible!

pillo

Lunedï¿½, febbraio 18, 2002, alle 01:07 , Roland Schregle ha scritto:

Â·Â·Â·

pillo wrote:

i m a radiance beginner as you can see reading what follows..
i m wondering how to describe glasses (the same refraction index) that
are different in thickness... (5mm, 10mm...)
(i m modeling rooms with different windows, single and double glassed
ones)

void glass glass15mm
0
tr tg tb

where "ri" is 1.51

but where it is thickness?

The GLASS primitive is optimized for glass of infinitessimal thickness.
You'll probably want to use the DIELECTRIC or INTERFACE material
instead, which allows you to specify the trasmittance per unit length.

See ya!

--
"Life is too short for core dumps"
_______________________________________________