First Interior - Lithium Design

LithiumDesign · Post by **LithiumDesign** » Mon Jan 02, 2012 12:31 am

Had some issues with rendering glass and transparent materials in my studio scenes, here, so decided to move onto some interior renders!

I'm a former vray user, for about a year now and found that indigo was fairly intuitive and fun to use

So here is my first interior render with a nice EXR sky for the lighting;

This took 14hours to render on an i5 @ 3ghz with bidir PT, what is the recommended render method for interiors?

Thanks, LithiumDesign

edit: There are actually emitters in the light housings in the top right at 200W 17.6 lumens/W but they don't seem to light the room at all, do I need to lower the gain of the EXR map and change the camera settings or increase the Wattage of the emitter material?

solarray · Post by **solarray** » Mon Jan 02, 2012 2:21 am

LithiumDesign wrote:edit: There are actually emitters in the light housings in the top right at 200W 17.6 lumens/W but they don't seem to light the room at all, do I need to lower the gain of the EXR map and change the camera settings or increase the Wattage of the emitter material?

You know that you can adjust the gain of each light source during rendering? Of course only if you set the different light sources to a light layer within your 3d app before exporting.

LithiumDesign · Post by **LithiumDesign** » Mon Jan 02, 2012 2:46 am

solarray wrote:You know that you can adjust the gain of each light source during rendering? Of course only if you set the different light sources to a light layer within your 3d app before exporting.

I did not know that, thanks!!

dcm · Post by **dcm** » Tue Jan 03, 2012 3:32 am

using EXR as environment will "mute" real power of emitters in your scene. Try to use sun/sky or pure white color as enviro and your emitters will be in real scale.I reported this long time ago and i hope, this will be solved in upcomming versions. EXR are kinda "overpowered" comapring to emitters.

LithiumDesign · Post by **LithiumDesign** » Tue Jan 03, 2012 9:17 am

dcm wrote:using EXR as environment will "mute" real power of emitters in your scene. Try to use sun/sky or pure white color as enviro and your emitters will be in real scale.I reported this long time ago and i hope, this will be solved in upcomming versions. EXR are kinda "overpowered" comapring to emitters.

Yeah I noticed this effect!! I've managed to overcome this though by increasing the lumens/W for the emitters - the maxigo preset emitter materials seem a bit low? Anyway, yes in the future I will consider sticking to sun/sky and adding in a sky/environment backplate in post

Thanks for the tip!

dcm · Post by **dcm** » Thu Jan 05, 2012 5:39 am

just question, you know about exit portals ?

LithiumDesign · Post by **LithiumDesign** » Thu Jan 05, 2012 10:23 am

dcm wrote:just question, you know about exit portals ?

Yes, but i have many windows in awkward positions and I'm not sure how I would set up an exit portal for my design!! As you can see here, the building has 2 hallways, that face each other with windows facing each other also;

As I am planning to do many renders from different rooms and angles, how will I place the exit portals?

Thanks!

dcm · Post by **dcm** » Thu Jan 05, 2012 10:29 am

place one EP to every window. EP shoud be box with inverted faces = you can remove one face then and you have opened box which can cover terrace for example.

LithiumDesign · Post by **LithiumDesign** » Thu Jan 05, 2012 10:58 am

dcm wrote:place one EP to every window. EP shoud be box with inverted faces = you can remove one face then and you have opened box which can cover terrace for example.

Hrm, I put an inverted plane in front of each window, the light comes in just fine and it renders well, but I do not have an "environment... I am using .exr and I pressed continue when maxigo told me i didn't have a sun/sky but my reflections are not right, as you can see here;

whats going on?!

dcm · Post by **dcm** » Fri Jan 06, 2012 11:21 am

you dont need to make plane inverted. just do plane and apply exit portal modifier. be sure that plane is facing towards windows.

LithiumDesign · Post by **LithiumDesign** » Sat Jan 07, 2012 1:42 am

dcm wrote:you dont need to make plane inverted. just do plane and apply exit portal modifier. be sure that plane is facing towards windows.

That's what I mean, the normals were facing into the interior but I still get these weird reflections?

dcm · Post by **dcm** » Sat Jan 07, 2012 9:53 am

LithiumDesign wrote:
dcm wrote:you dont need to make plane inverted. just do plane and apply exit portal modifier. be sure that plane is facing towards windows.
That's what I mean, the normals were facing into the interior but I still get these weird reflections?

try to remove glass and dont intersect portals with geometry. just place them near window only

LithiumDesign · Post by **LithiumDesign** » Tue Jan 10, 2012 1:34 am

dcm wrote:
LithiumDesign wrote:
dcm wrote:you dont need to make plane inverted. just do plane and apply exit portal modifier. be sure that plane is facing towards windows.
That's what I mean, the normals were facing into the interior but I still get these weird reflections?
try to remove glass and dont intersect portals with geometry. just place them near window only

Won't removing the glass take away all the reflections?

and I had the portals 20mm away from each window

LithiumDesign · Post by **LithiumDesign** » Tue Jan 10, 2012 1:34 am

dcm wrote:try to remove glass and dont intersect portals with geometry. just place them near window only

Won't removing the glass take away all the reflections?

and I had the portals 20mm away from each window

zeitmeister · Post by **zeitmeister** » Tue Jan 10, 2012 6:42 am

Since when are exit portals working with anything exept sunsky? Did I miss something?