Mental Ray classroom ..light test

General Forums Blender and CG Discussions
#1

Hi
I am not sure if i am in the right part of the forum here but anyway.
I just wonder if somebody would be keen to have a go on the mental ray classroom
viz

and do some lighting tests ?

I would like to use only blender internal for this . So we all have the same tools to work with :slight_smile:

I dont want this to be a competition but more like a learning thing.
we could share our files so everyone can check the settings light etc …

If somebody have the file it would be great .it supposed to be somewhere on the evermotion website but i could not found it …i can just model it if we cant found it anywhere.

Sorry about my English
Thanks Martin

#2

Hi I got the file but it`s a *.mb … maya file could someone with maya save it as obj for me please ?

#3

Yeah I can convert it for you.

Uploading as we speak.

Ok done.
http://www.mediafire.com/?w7k2fsxj2bvu872

#4

You’re going to love this.

#5

I really like to have a look. What .txt stands for?

#6

Wowser! Thanks for the link.

#7

you’re not just a troll, but a very young troll. :slight_smile:

#8

NinthJake awesome !! thank you very much !!

Bigbad nice link! Thanks for that. I will have to play with some of those files :slight_smile:

michalis what ?

#9

good luck with blender internal

the difficulty of lighting increases proportional with the amount of objects in the scene :wink:

#10

This thread only has solution using the blender with GI that comes in Sintel DVDs.

#11

I did a test with the official Blender 2.57 using a glossy shader to fake GI with nice results. :slight_smile:

http://img857.imageshack.us/img857/6655/classroomglossyshaderte.th.jpg

#12

@Kai_KostackKai Kostack nice its look good to me :slight_smile: thats another thing what i was thinking …maybe one clay render and another one with textures

btw: should i create new threat for the tests or just let this one go ?

#13

http://www.blender3d.org/e-shop/product_info_n.php?products_id=120

#14

Looks great except the dark ceiling at the top right and the rest of the ceiling being like a mirror. Perhaps different glossy, strong glossy on the walls the camera don’t see and less glossy in ceiling and floor and others that look rare/wrong.

#15

here is my render … i will try to make it better…btw got no idea why the heaters are so bright ? will definitly make softer shadows for the area lights what are in the windows now ( they are to sharp i think)

https://lh5.googleusercontent.com/_mBKkT4ccXo0/Ta0A4gFxXiI/AAAAAAAAAPY/LDni4flLD5Y/s912/1.jpg
1.jpg912Ă—684

#16

Do you use Approximate Ambient Occlusion ?

#17

Here is my old attempt to render this scene in Blender
It’s not too good but anyway…
I can recommend to read few times Jeremy’s Birn Digital Lighting & Rendering (first and 2nd Edition), and try to learn as much as possible from tutorials like simulating GI / fake radiosity - even if they are no blender related.

I will in this year probably rerender In Blender this scene again
so if I will be pleased with the results I will post.

/uploads/default/original/3X/4/6/460fed4e8317b45d49a868c0dfa6206b279a4de8.jpgd=1293389147
class_06_Post.jpg1024Ă—728 101 KB

#18

the main long lights are good color wise - maybe a bit to reflective
but what lacks is the absent of shadow and contrast rich key lights.

it looks somewhat like a picture taken with flash they always lack 3D depth.

#19

Yep that is correct there is too little contrast.
Absent of shadows are related to the high angle of key light. Almost 75% scene is located in shadow area.
The key light is turn to the camera.
There is to little key to fill ratio, and I don’t use AO.
I agree the scene lack of 3D depth.

#20

cekuhnen Yes you are spot on :slight_smile: i did use approximate … I used environmental lightinng and indirect illumination for that one …unfortunately with indirect its always approximate :frowning: … that will be the reason for the bright heaters.
Indirect does not have to be used just for glowing balls does it ?

czarek77 it does look a bit to flat. Try to play with the lights more and post it here. And i think that for interiors you want to use AO or something like that. I should check the book you have mentioned . Thanks

to moderators: should i open new threat in the test section or you can move this one ? It does not really fit in to the news section any more :slight_smile:
@cekuhnen