Sunset reflection glass with PMC or PT?

[rappet]

This render is in PMC only 430 s/px. Probably I have to redner a lot longer to get less noise,
but the scene is not finished for final render anyway. So I was wondering if I have chosen the right kernel for this scene?
I did a lot noise reduction before and after scaling render from 4000x2000px to 2000x1000px
While posting this I am rendering in PT to see what kernel to use best in this specific scene.
C&C are welcome
The ceiling looks too dark.. I'll try a emitterobject behind the camera, but maybe someone has another idea?
btw: I noticed the glass probably needs more reflection and maybe I should add few more probs inside for realism?
greetz,

updated with second image: with PT 565s/px (also reduced noise and scaled the same)

[FooZe]

I would probably go with PMC. What are you using for the downlights? Something doesn't look right about the light distribution of them to me. Are they standard diffuse emitters? I would check the normals if they are...
You may also want to try making them IES lights, it might clean up quicker and give more controllable lighting, it is worth a try.

Thanks
Chris.

[rappet]

Hi Fooze,
I don't know exactly what IES lights are. I think I know it from Artlantis (pardon my French ),
but maybe it is something for 3dmax, but not for Archicad?
In the meanwhile I discovered I had doubled up my lamps, but I am using the white-emitter material for the lights.
I'll post a new render soon, but I cannot get my ceiling right, it is too dark; is there a trick for?
greetings,

update with renders:
I rendered this scene in DL, PT and PMC.
PMC was a little better then PT (not shown).
The image are rendered 3200x1800 and downsized 50% and I did some noisereduction afterwards on the PMC.
In DL the ceiling is too bright, in PMC too dark to my opinion.
Strangely in PMC I lost the bloom and glare effect?
Inside the lamps are trippled or something, so I have to adjust the glass-index or something?
For imager I chose Kodachrome 64C and pumped up ISO on purpose to get a dramatic effect.

Tips and tricks to improve are very welcome.
greetings,

[FooZe]

Hi Rappet,

I can help with technical things but i'm no 3d artist so perhaps someone else can give input to that side of things...

I didn't know you were using ArchiCAD. As far as i can see Paul has supported IES lights for archiCAD
http://render.otoy.com/manuals/ArchiCAD/?page_id=146

You load a specific type of file (you can find examples on google) that describes the light source pattern into the distribution parameter of the emission.
Do a google search and you will see what IES lights are. It adds some interest to the light source, to make it non uniform. The orientation parameter will become important with the IES lights because you will need to control the direction.

For the inside lights i think this is just going to happen when the image contrast is so high. The reflections are very noticeable because everything else is so dark. You could try setting the index to 1.0 but i still think you will get multiple reflections.
With DL, you will get the brightness on the ceiling because it is influenced by the environment (sky) underneath - this is how DL works.
For PMC, you will most likely need to either tweak the imager settings or add additional light sources on the deck or something to get some light onto the ceiling.

You might need to tweak the bloom and glare on PMC, and perhaps even the camera angle to make sure you have enough sun directly visible through the trees to cause the effect.

Hope that helps.

Thanks
Chris.

[rappet]

Thanx Fooze,

About IES lights I have to find out more to see if that is something for Archicad too?
But, Yes your comments helped, I played around some more and got effect with the PMC in combination with hdr and the bloom effect.
For the scene I just needed to add some light sources form ground level.
Playing around with the scene I got an accidentally overexposed DL visual; I kinda like due to the over-exposure.
I will continue experiment with this scene and try to get back with a rendering that is more photorealistic.
Greetings,

[rappet]

...
I will continue experiment with this scene and try to get back with a rendering that is more photorealistic.
Greetings,

One step closer to what I'm trying to achieve


Used hdri for environment
imager: exposure:1, fstiop: 2.8, ISO 100, gamma:1, response: Misc 315-2,
Kernel PMC
postproduction, bloom:2, glare:1

I rendered 313 s/px size 6400x3600px and did some noisereduction and downscaling to 1600x900 afterwards

PS
I learned from looking at other posts for some settings (by cadvis):
http://render.otoy.com/forum/viewtopic.php?f=5&t=31989
and lights (by visuall):
http://render.otoy.com/forum/viewtopic.php?f=6&t=31644

UPDATE: added image rendered with DL kernel 1408 s/px.
You can see big difference in interior lighting.
Also rendered size 6400x3600px and did some noisereduction and downscaling to 1600x900 afterwards

[LudovicRouy]

I like the PMC version it's much brighter and warm.

[rappet]

This is the update render for now concerning a late-midday/early-evening scene.
I corrected the ceiling (was a mistake using tow materials) and the color of the columns.
I rendered this one DL 4716s/px and did the same denoise and downscale as before.

The next try will be a clean as possible daylight render.

[lixai]

Nice renders.
A little too much dof (it's architecture, not macro)
Too much glare.
The sky is a bit too bright.
Move the camera higher, so you don't have the raining in the front of the camera, it's distracting.
I hope this helps you to make a better image

[rappet]

Nice renders.
A little too much dof (it's architecture, not macro)
Too much glare.
The sky is a bit too bright.
Move the camera higher, so you don't have the raining in the front of the camera, it's distracting.
I hope this helps you to make a better image

@Lixai, thanxfor C&C.
This is the result following up your comments,
This render is DL 3625s/px at size 3200px denoised and downscaled to 50%.
greetings,

Updated with PMC and PT renders.

Updated rendertimes as description under image.
Rendertimes are not really to compare though,
because PT is not as sharp as Dlk, but is rendered shorter .