Hi all Can someone please explain to me how to use the lightselect element in photoshop. I understand how to use other elements such as extratex or wirecolor etc. but I am not sure how to use the light select. In the youtube video he uses the pd player which looks pretty easy but I don’t own pd pl…

So it only works with pdplayer or maybe after effects? Is that what you are saying?

no, he is saying for what you want to do, you need a different trick

Nope; I was saying that I haven’t used the light select element to reduce a burnt out area around a light. I have only used it to adjust the individual contribution of lights to the final image. Best regards, Vlado

So if you only have Photoshop or After Effects what’s the process for combining these elements back into a final image? I can’t find anything on it so either no one knows or it’s not possable.

I’m pretty sure you have to just output each light element to a half float image, exr or HDR and then select “add” mode for each layer. I’m pretty sure thats how it is done in PD player too.

to achieve that in PS you can use your lightselect layer with a Difference blend mode, that will get rid of that direct light completely. After that can use the layer opacity to “dim” the light if you want.

arent you supposed to use the lightselect element in combination with the raw diffuse etc.? not the final rendered image. if you rebuild the image from the correct elements- reflections, gi, diffuse etc.. then you will have all the direct lighting effects separate, to adjust as you wish. never a…

on that note, are there licensing reasons against including a psd exporter? it could save out nice layered 32 bit psds with all the layers correctly arranged and blended. or is this something that theoretically exr can do?

There is the plugin from Cebas for doing that so perhaps it’s just a cost/benefit thing for Chaos. I’d love to see that functionality in Vray too though. Or just a VRIMG plug-in for Photoshop - either way would be a big help. b

Vray lightselect and photoshop

V-Ray for 3ds Max V-Ray for 3ds Max :: General

TRGraphics August 27, 2011, 8:34pm 11

It appears if I use the add mode in photoshop all you can do is make the light brighter, not lower. Am I doing something wrong or is that all it can do?

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Vray lightselect and photoshop

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