[Radiance-general] Glare analysis

[Melody Wong YT]

Dear all,

I have frustrated with the command "evalglare" and "findglare" in Radiance.

As I tried with DIVA before, and the function "point-in-time glare analysis" can be used with parallel rhino saved view for Radiance "evalglare" function.

However, when I used the same function in Radiance, error message popped "view must not be parallel". Does there anyone know why there are difference in the same function of "evalglare" and "findglare" in different software?
Can Radiance evaluate glare in rhino saved view rather than only fisheye view?

Apart from the above question, the time for simulating the glare in radiance and Diva are hugely difference. Does there any one experience Diva function and Radiance function before? And have insight about the calculation method between these two simulation softwares.

I have made the summaries the calculation file as below to see if it helps with the understanding.



Radiance (glare script)

Diva (Glare)

Sky file

!gensky 7 15 13:0 +s -a 22.33 -o -114.18 -m -120.00 -t 2.00 | xform -rz 0.00

skyfunc glow sky_glow
0
0
4 .986 .986 1.2020135 0

sky_glow source sky
0
0
4 0 0 1 180

skyfunc glow ground_glow
0
0
4 1 .7 .25 0

ground_glow source ground
0
0
4 0 0 -1 180

!gensky 12 15 08 +s -a 22 -o -114 -m -120

skyfunc glow sky_mat
0
0
4
1 1 1 0

sky_mat source sky
0
0
4
0 0 1 180

skyfunc glow ground_glow
0
0
4
1 .8 .5 0

ground_glow source ground
0
0
4
0 0 -1 180

Glare evaluation

rad -v view model_M12D15T8.rif REP=1

model_M12D15T8.rif :
ZONE = I 0 1 0 1 0 1
scene = SrdBldg.rad
scene = Bridge.rad
scene = Topo.rad
scene = Skylight.rad
scene = Roof.rad
scene = Glazing.rad
scene = Wall.rad
scene = BIPV.rad
materials = materials.mat
scene = sky_M12D15T8.rad
#add illum if needed
#illum=window.rad
view= view -vf view.vf
OCTREE= model.oct
EXPOSURE= 1
UP= Z
RESOLUTION= 512 512
QUALITY= M
PENUMBRAS= F
INDIRECT= 1
DETAIL= M
VARIABILITY= M
OPTFILE= model.opt
oconv= -f
#@mkillum= -ab 3 -ad 512 -as 256
render= -st .001 -dj .02 -ad 2048
pfilt= -2
#@northarrow= nonedefined xform -rz 0
# AMBFILE= Amb_M12D15T8.amb


oconv material.rad Mikki_sky.rad Mikki.rad > Mikki.oct

rpict -t 15 -vtv -vp 131.593 -15.381 43.05 -vd 97.297 -128.425 -16.081 -vu 0 0 1 -vh 75.8026519334564 -vv 53.9156001928024 -vs 0 -vl 0 -af Mikki.amb -x 1600 -y 1200 -ps 8 -pt .15 -pj .6 -dj 0 -ds .5 -dt .5 -dc .25 -dr 0 -dp 128 -st .85 -ab 2 -aa .25 -ar 128 -ad 1024 -as 1024 -lr 4 -lw .05 Mikki.oct > Mikki_Mikki_L.overture

del Mikki_Mikki_L.overture

rpict -t 15 -vtv -vp 131.593 -15.381 43.05 -vd 97.297 -128.425 -16.081 -vu 0 0 1 -vh 75.8026519334564 -vv 53.9156001928024 -vs 0 -vl 0 -af Mikki.amb -x 1600 -y 1200 -ps 8 -pt .15 -pj .6 -dj 0 -ds .5 -dt .5 -dc .25 -dr 0 -dp 128 -st .85 -ab 2 -aa .25 -ar 128 -ad 1024 -as 1024 -lr 4 -lw .05 Mikki.oct > Mikki_Mikki_L.unf
pfilt -r .6 -x /2 -y /2 Mikki_Mikki_L.unf  > Mikki_Mikki_L.pic

del Mikki_Mikki_L.unf

evalglare -c Mikki_Mikki_L_evalglare.pic Mikki_Mikki_L.pic >Mikki_Mikki_L_evalglare.txt


Thank you very much.

Regards,
Melody Wong
Building Sustainability - Building 5
Arup
Level 5  Festival Walk,  80 Tat Chee Avenue  Kowloon Tong  Kowloon,  Hong Kong
d: +852 2908 4915 (ext. 84915)



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