Lighting Test

[agentdark45]

Hey everyone, just a lighting test, using global photon maps and ies lights:

Please posts comments and crits, updates coming soon.

[dusan]

Looks great!
How did you combine photon maps and ies?
Could you post some settings?

[agentdark45]

Thanks for the comments, ies lights are the ones that were in a tutorial some times ago ; point target lights.
Skylight subdives: 2048
Point lights: 512

Global Photon maps settings:
retrace bounces and bounces: 20
convert to to irr map and convex hull ticked,
retrace threshhold: 5

Hsv exponential, dark mult. = 5

Medium irr map settings, .85 first bounce, .75 secondary bounces.

Oh and dont check store shadows with irradience map for lights! - if U want good defined shadows, I have to increase the subdiv's alot more for the final rendering.

[didjaja]

Very good
What is your difuse multiplier for ies light? I know you have to increase it very much
And why you use 5 in retrace threshold? Do you try without retrace?
How many lights in your scene?
And file units and max density-search distance?
Multiplier of skylight?
And the image has any postproduccion?
And render time?
Sorry for many questions and thanks in advanced

[natty]

looks good agentdark45
nice to see my tutorial coming to good use.
nice clean image.

[taboo]

hi.. sorry but i am very new to global photon maps.
as far as i know, you can not use Skylight for global photon map.
But you mentioned Skylight subdivs and stuff? what is that?
and also. can someone use a selfilluminated planes for lighting in global photon map?

Thanks.

[natty]

Taboo
i think you will find he has used photon mapping for the second gi solution and irr for the first.

[dusan]

skylight subd?

Damn, we really need an ULTIMATE photon mapping tutorial.
If you would use irr for first and phot for second, wouldnt that produce second illumination for lights and only first bounce for skylight?

I mean this has to be it?
Photons are shot from lights right? Not from first bounce by irradiance map?

[agentdark45]

Ok, my last post might have been a tad bit confusing , When I sed skylight, I meant the big vray light that I have at the opening of the top of the room, I used a vray light instead of skylight because it can shoot photons and has good sharp shadows; Its multiplier is 5 and the vray skylight multiplier is at 0. There is also a big additional vray light on the other side of the room with a multiplier of 0.1.
The retrace threshold is at 5 so that the corners look better, i think, i havent tried a render with a lower or higher setting for the retrace threshold.
Diffuse multiplier of ies lights: 15%, with an orange filter color.
My units are in centimeters, all other vray settings left at default.
10 lights in the scene: 8 ies, 2 vray lights (1 main one, one as a fill.)

[dusan]

Thanks,

For the sake of the image, please give that opening some depth and move the light deeper inside, this way i thought its a big artificial light rather than an opening....

[agentdark45]

Heres an update with some higher settings:

[mohinder01]

Very Inspiring. i love the contrast between natural and artificial light, especially the orange and blue colouring it produces.

Just one question, are the vray lights for the skylights set to be Skylight portal?

[agentdark45]

nope , just a normal vray light.

[hughg]

this is good, very good!