Constant "long" lights

Hi friends,

I wanna to ask, how can I put long light in the 3D model, for constant light in render in autocad like this picture

I put some point lights and they give me point views like this (the second one - with red lines)

I guess somewhat with web lights and .ies files???

I guess IES is the only closest to that one.

I found a free IES creator here. And try if I can create a long light like what you want.

Close enough I guess. I haven't try to actually render it though.

Thanks for the great little program, edwinprakoso, I'm searching for that program so long ...

I made one .ies file with it, and understand ... the web light is still point, no matter what light it drops ... I think that had to made something with material with optical rope haracteristics, selfilumined it ... and drop some light at it's end or start ...

may be in 3ds ?

Something like this?

10 points!!! Can you tell me (us) how it's work if it is no secret

Is there something with the pipe with the luminance switch at about 10000 cd/sqm

I'd understand something, it works but not so good like yours, the top ceiling recieve the light of that pipe with material for ceiling with about 1 ..2 points for reflection but the light is not disperse - only saw the light pipe like in the mirror. I'd tried to put bump with noise, it works too .. but it's so rough ...

You got it! I just swept a circle along a polyline and gave it a material with some luminance. I think the reason why your light was so spotty is because you either didn't have your final gather turned on, or your number of rays were too low. I had about 1000 rays for this one. Hope this helps!

Tnx a lot Red333. It seems to have a little hole for my knowing about final gather . It works fine ...

Glad it worked!