Creating spotlights?

[Spectralis]

Is there any way to create spotlights using emissive materials or any other solution? I think there's a way to use templates with the emissive materials that direct the light but I forget how this is done.

[swipswap]

IES lights would be your easiest solution since you don't have to create any obstacles for the light rays to bounce off/through.
linvanchene goes in to detail in http://render.otoy.com/forum/viewtopic.php?f=44&t=44053.

http://www.cgarena.com/freestuff/tutori ... ndex2.html offers some more detail and a free IES editor.

[Spectralis]

Thanks for the links. I read the thread but it sounds incredibly complicated. I'll give it a try and see if I can master creating a spotlight. I wish there was an instant spotlight setting in OcDS like there is in iRAY.

[swipswap]

It's looks complicated but if you play with the IES generator (link at the bottom), you'll see that it's not hard to get the results you want.

[bepeg4d]

Hi,
IES light are surely the best option, but here you can find a simple geometry spotlight setup:
It is basically an open truncated cone with the top face emitting inside:

Spotlight.7z

(27.46 KiB) Downloaded 177 times

You can change the Y scale for laser beam effect or change the X and Z simultaneously for different effects.

Note that there is a cube-fog nested inside, maybe you will need to adapt the scale independently from the spotlight. Be aware that the camera must be always outside the cube-fog, otherwise the fog stops to work.
It's my first DAZ scene that I share so be patient, I hope to have zipped all the necessary parts, let me know if it works, please

Happy rendering,
ciao beppe

[larsmidnatt]

I've done the geometry method as well, i dunno why but for some reason I just find it fun lol

[Spectralis]

Hi,
IES light are surely the best option, but here you can find a simple geometry spotlight setup:
It is basically an open truncated cone with the top face emitting inside:

Spotlight.7z

spotLight-c01.JPG

You can change the Y scale for laser beam effect or change the X and Z simultaneously for different effects.

spotLight-c02.JPG

spotLight-c03.JPG

Note that there is a cube-fog nested inside, maybe you will need to adapt the scale independently from the spotlight. Be aware that the camera must be always outside the cube-fog, otherwise the fog stops to work.
It's my first DAZ scene that I share so be patient, I hope to have zipped all the necessary parts, let me know if it works, please

Happy rendering,
ciao beppe

Thanks for sharing this spotlight. When I try to merge it with my scene DS reports that:

/data/auto_adapted/Cylinder3_65/geometry_47cc2421_ebbc_ee41_cbfe_0b30d9ee542c/Cylinder3.dsf

is missing. Not sure if this is a DS or user preset but I don't seem to have it.

[bepeg4d]

I apologize, it's my total ignorance about DAZ
Please, could you try this and tell me if now is all in place?

SpotLight-DAZ.7z

(30.79 KiB) Downloaded 205 times

ciao beppe

[Spectralis]

I apologize, it's my total ignorance about DAZ
Please, could you try this and tell me if now is all in place?

SpotLight-DAZ.7z

ciao beppe

Thanks so much. It seems fine. The only problem is that I've set up the light ok and it renders fine in the viewport except when I try rendering animation. The emissive light doesn't show up in the rendered animation images. Very strange behaviour because the light shows up in the viewport when I render a still. Any reason for this?

[bepeg4d]

mmm, I have to investigate, but I need some time
Good to know that at least it works for static renders
ciao beppe