# Help!

Can anyone tell me if 3d max is certified daylighting calculation
software? I guess what I'm asking is, is it suitable for use in design
engineers to use as proof of compliance with design standards?

Philip Brogan

www.burohappold.com

Ward

···

-----Original Message-----
Sent: 05 May 2009 17:31
Subject: Re: [Radiance-general] Description of complex glass
systems(geometry+ material)

Hi Marina,

Looks about right to me -- does it reproduce the combined
transmittance and reflectance you're measuring? Are the interfaces
separated by an air gap, or are some/all layers laminated with an
optical adhesive? In the latter case, the functions in glaze2.cal
won't compute the correct combined transmittance and reflectances.

-Greg

From: marina aviles olmos <marina.aviles@gmail.com>
Date: May 5, 2009 8:05:45 AM PDT

Hi Robin, hi All

yes I want to simulate a laminated glass in a double glass system.
This
laminated glass is a prototyp of a glazing system and there is no
information about it anywhere. It is also a quite complicated system
with embeded coating and interlayer and I can get its description from
Optics5. That's why I think the way to describe this glasses are with
the spectrometer measurements.

I am still not sure anyway if I describe the glasses propertly.
Does anybody knows if this is right like this:

#window geometry:

double_glazing_a polygon window
0
0
12 0 -0.18 0
0 -0.18 3.34
4.13 -0.18 3.34
4.13 -0.18 0

#window material:

void BRTDfunc double_glazing_a
10
if(Rdot,cr(fr(rf1_r),ft(t1_r),fr(rf2_r)),cr(fr(rb2_r),ft(t2_r),fr
(rb1_r)))
if(Rdot,cr(fr(rf1_g),ft(t1_g),fr(rf2_g)),cr(fr(rb2_g),ft(t2_g),fr
(rb1_g)))
if(Rdot,cr(fr(rf1_b),ft(t1_b),fr(rf2_b)),cr(fr(rb2_b),ft(t2_b),fr
(rb1_b)))
ft(t1_r)*ft(t2_r)
ft(t1_g)*ft(t2_g)
ft(t1_b)*ft(t2_b)
0 0 0
glaze2.cal

0
9
0 0 0
0 0 0
0 0 0

where I just have to substitute the next measured data:

Red: 700nm -- rf1_r rb1_r rf2_r rb2_r t1_r t2_r
Green: 546nm -- rf1_g rb1_g rf2_g rb2_g t1_g t2_g
Blue: 436 -- rf1_b rb1_b rf2_b rb2_b t1_b t2_b

Thanks again,

Marina

_______________________________________________

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Are you talking about average daylight factors and bre guidance? The
bre does make mention of "computer simulation" but doesn't go into
detail.

In my experience I would either use radiance or the light studio
radiance plug in for 3ds max for accuracy.

Dan

···

On 8 May 2009, at 13:26, "Philip Brogan" <Philip.Brogan@BuroHappold.com> wrote:

Can anyone tell me if 3d max is certified daylighting calculation
software? I guess what I'm asking is, is it suitable for use in design
engineers to use as proof of compliance with design standards?

Philip Brogan

www.burohappold.com

-----Original Message-----
Greg
Ward
Sent: 05 May 2009 17:31
Subject: Re: [Radiance-general] Description of complex glass
systems(geometry+ material)

Hi Marina,

Looks about right to me -- does it reproduce the combined
transmittance and reflectance you're measuring? Are the interfaces
separated by an air gap, or are some/all layers laminated with an
optical adhesive? In the latter case, the functions in glaze2.cal
won't compute the correct combined transmittance and reflectances.

-Greg

From: marina aviles olmos <marina.aviles@gmail.com>
Date: May 5, 2009 8:05:45 AM PDT

Hi Robin, hi All

yes I want to simulate a laminated glass in a double glass system.
This
laminated glass is a prototyp of a glazing system and there is no
information about it anywhere. It is also a quite complicated system
with embeded coating and interlayer and I can get its description
from
Optics5. That's why I think the way to describe this glasses are with
the spectrometer measurements.

I am still not sure anyway if I describe the glasses propertly.
Does anybody knows if this is right like this:

#window geometry:

double_glazing_a polygon window
0
0
12 0 -0.18 0
0 -0.18 3.34
4.13 -0.18 3.34
4.13 -0.18 0

#window material:

void BRTDfunc double_glazing_a
10
if(Rdot,cr(fr(rf1_r),ft(t1_r),fr(rf2_r)),cr(fr(rb2_r),ft(t2_r),fr
(rb1_r)))
if(Rdot,cr(fr(rf1_g),ft(t1_g),fr(rf2_g)),cr(fr(rb2_g),ft(t2_g),fr
(rb1_g)))
if(Rdot,cr(fr(rf1_b),ft(t1_b),fr(rf2_b)),cr(fr(rb2_b),ft(t2_b),fr
(rb1_b)))
ft(t1_r)*ft(t2_r)
ft(t1_g)*ft(t2_g)
ft(t1_b)*ft(t2_b)
0 0 0
glaze2.cal

0
9
0 0 0
0 0 0
0 0 0

where I just have to substitute the next measured data:

Red: 700nm -- rf1_r rb1_r rf2_r rb2_r t1_r t2_r
Green: 546nm -- rf1_g rb1_g rf2_g rb2_g t1_g t2_g
Blue: 436 -- rf1_b rb1_b rf2_b rb2_b t1_b t2_b

Thanks again,

Marina

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_______________________________________________

Yes daylight factors but in general terms. I do lots of artificial
lighting design using Dialux which is CIE accredited and the output is
recognised as acceptable for building compliance. I just wasn't sure if
3d max was?

Thanks for responding so quickly tho, much appreciated.

Philip Brogan

www.burohappold.com

···

-----Original Message-----
Fitzpatrick
Sent: 08 May 2009 13:36

Are you talking about average daylight factors and bre guidance? The
bre does make mention of "computer simulation" but doesn't go into
detail.

In my experience I would either use radiance or the light studio
radiance plug in for 3ds max for accuracy.

Dan

On 8 May 2009, at 13:26, "Philip Brogan" <Philip.Brogan@BuroHappold.com> wrote:

Can anyone tell me if 3d max is certified daylighting calculation
software? I guess what I'm asking is, is it suitable for use in design
engineers to use as proof of compliance with design standards?

Philip Brogan

www.burohappold.com

-----Original Message-----
Greg
Ward
Sent: 05 May 2009 17:31
Subject: Re: [Radiance-general] Description of complex glass
systems(geometry+ material)

Hi Marina,

Looks about right to me -- does it reproduce the combined
transmittance and reflectance you're measuring? Are the interfaces
separated by an air gap, or are some/all layers laminated with an
optical adhesive? In the latter case, the functions in glaze2.cal
won't compute the correct combined transmittance and reflectances.

-Greg

From: marina aviles olmos <marina.aviles@gmail.com>
Date: May 5, 2009 8:05:45 AM PDT

Hi Robin, hi All

yes I want to simulate a laminated glass in a double glass system.
This
laminated glass is a prototyp of a glazing system and there is no
information about it anywhere. It is also a quite complicated system
with embeded coating and interlayer and I can get its description
from
Optics5. That's why I think the way to describe this glasses are with
the spectrometer measurements.

I am still not sure anyway if I describe the glasses propertly.
Does anybody knows if this is right like this:

#window geometry:

double_glazing_a polygon window
0
0
12 0 -0.18 0
0 -0.18 3.34
4.13 -0.18 3.34
4.13 -0.18 0

#window material:

void BRTDfunc double_glazing_a
10
if(Rdot,cr(fr(rf1_r),ft(t1_r),fr(rf2_r)),cr(fr(rb2_r),ft(t2_r),fr
(rb1_r)))
if(Rdot,cr(fr(rf1_g),ft(t1_g),fr(rf2_g)),cr(fr(rb2_g),ft(t2_g),fr
(rb1_g)))
if(Rdot,cr(fr(rf1_b),ft(t1_b),fr(rf2_b)),cr(fr(rb2_b),ft(t2_b),fr
(rb1_b)))
ft(t1_r)*ft(t2_r)
ft(t1_g)*ft(t2_g)
ft(t1_b)*ft(t2_b)
0 0 0
glaze2.cal

0
9
0 0 0
0 0 0
0 0 0

where I just have to substitute the next measured data:

Red: 700nm -- rf1_r rb1_r rf2_r rb2_r t1_r t2_r
Green: 546nm -- rf1_g rb1_g rf2_g rb2_g t1_g t2_g
Blue: 436 -- rf1_b rb1_b rf2_b rb2_b t1_b t2_b

Thanks again,

Marina

_______________________________________________

This message has been scanned by MailController -
www.MailController.altohiway.com

_______________________________________________

_______________________________________________

Dear Philip,

You might find this link useful:

.

Christoph

···

-----Original Message-----
Fitzpatrick
Sent: Friday, May 08, 2009 8:36 AM

Are you talking about average daylight factors and bre guidance? The
bre does make mention of "computer simulation" but doesn't go into
detail.

In my experience I would either use radiance or the light studio
radiance plug in for 3ds max for accuracy.

Dan

On 8 May 2009, at 13:26, "Philip Brogan" <Philip.Brogan@BuroHappold.com> wrote:

Can anyone tell me if 3d max is certified daylighting calculation
software? I guess what I'm asking is, is it suitable for use in design
engineers to use as proof of compliance with design standards?

Philip Brogan

www.burohappold.com

-----Original Message-----
Greg
Ward
Sent: 05 May 2009 17:31
Subject: Re: [Radiance-general] Description of complex glass
systems(geometry+ material)

Hi Marina,

Looks about right to me -- does it reproduce the combined
transmittance and reflectance you're measuring? Are the interfaces
separated by an air gap, or are some/all layers laminated with an
optical adhesive? In the latter case, the functions in glaze2.cal
won't compute the correct combined transmittance and reflectances.

-Greg

From: marina aviles olmos <marina.aviles@gmail.com>
Date: May 5, 2009 8:05:45 AM PDT

Hi Robin, hi All

yes I want to simulate a laminated glass in a double glass system.
This
laminated glass is a prototyp of a glazing system and there is no
information about it anywhere. It is also a quite complicated system
with embeded coating and interlayer and I can get its description
from
Optics5. That's why I think the way to describe this glasses are with
the spectrometer measurements.

I am still not sure anyway if I describe the glasses propertly.
Does anybody knows if this is right like this:

#window geometry:

double_glazing_a polygon window
0
0
12 0 -0.18 0
0 -0.18 3.34
4.13 -0.18 3.34
4.13 -0.18 0

#window material:

void BRTDfunc double_glazing_a
10
if(Rdot,cr(fr(rf1_r),ft(t1_r),fr(rf2_r)),cr(fr(rb2_r),ft(t2_r),fr
(rb1_r)))
if(Rdot,cr(fr(rf1_g),ft(t1_g),fr(rf2_g)),cr(fr(rb2_g),ft(t2_g),fr
(rb1_g)))
if(Rdot,cr(fr(rf1_b),ft(t1_b),fr(rf2_b)),cr(fr(rb2_b),ft(t2_b),fr
(rb1_b)))
ft(t1_r)*ft(t2_r)
ft(t1_g)*ft(t2_g)
ft(t1_b)*ft(t2_b)
0 0 0
glaze2.cal

0
9
0 0 0
0 0 0
0 0 0

where I just have to substitute the next measured data:

Red: 700nm -- rf1_r rb1_r rf2_r rb2_r t1_r t2_r
Green: 546nm -- rf1_g rb1_g rf2_g rb2_g t1_g t2_g
Blue: 436 -- rf1_b rb1_b rf2_b rb2_b t1_b t2_b

Thanks again,

Marina

_______________________________________________

This message has been scanned by MailController -
www.MailController.altohiway.com

_______________________________________________

_______________________________________________