[kooma]

Hi!

I have some problem using IES files as emitter in LW 9,3 MW 2,0,8
According to the tutorial I created a small 5mm low res ball than I assigned the .ies file to the emitter and deleted the BSDF material under it. When I refresh the view it does not show the light distribution like in the tutorial.
When I render it it sais: ERROR: - Photometric file not found
what is strange as the path is correct.

I tried different IES files but no idea how to make it work...

ies code:

Code: Select all

IESNA91
[TEST]     Test unknown
[MANUFAC]  Manufacturing company unknown
TILT=NONE
1 13172.61 1
37 1
1
2
0 0 0
1 1 0
 0.00 2.50 5.00 7.50 9.11 10.00 10.80 12.50 15.83 22.50 25.00 27.50 32.50 34.28 35.00 42.50 47.02 47.50 47.81 50.00 50.78 52.50
 55.00 57.50 60.00 62.50 65.00 67.50 70.00 72.50 75.00 77.50 80.00 82.50 85.00 87.50 90.00
 0.00
 8379.00 8409.00 8528.00 8126.65 8500.00 8564.00 8301.00 8158.61 8411.98 8036.59 7865.61 7283.76 5209.38 6038.93 4533.49 3091.00
 3665.38 2996.97 3625.45 2194.62 3170.85 1115.28 651.00 450.00 244.00 102.00 80.00 43.00 5.00 2.00 0.00 0.00 0.00 0.00 0.00 0.00
 0.00

[Mihnea Balta]

When Maxwell says "Photometric file not found" and the file is there, it means it cannot parse it. The plug-in is using the same IES loading code as Maxwell, so it cannot display it in the viewport either. Does this file work with other programs that support IES? I'll pass it along to the person in charge of IES, maybe he can tell us exactly why it doesn't load.

[Miguel]

Hi,

after the line that reads TILT=NONE, a single line with 10 numbers must follow, but the numbers in the example are split into 4 or 5 lines. The IES format specifies that this must be a single line but, for some reason, some programs split that line. If you put those numbers on the same line it will work.

This is how it should look like:
.....
TILT=NONE
1 13172.61 1 37 1 1 2 0 0 0
1 1 0
.......

Since this de facto standard can have more than one line, i've adapted the reader to cope with split lines, and this will be available for the next patch.

Hope this helps.
Miguel.

[kooma]

Now it works!! thanks for the fast respond!
Peter