how light my scene

Common Common :: Tutorials, Tips & Tricks
1

hello all
soory for my english

i make lamborgini car and i dont know how get reflections like this ( exactly like this)
please write particulary

thanks for all posts

2

Lets see what you got so far..

-Tom

3

soory for image size

i make self illuminated box near the car (left reflect)
how i can get it without making boxs etc.

4

Try using HDRI images to illuminate

Regards

5

hdri dont give reflections like this on pictute

6

http://www.chaoticdimension.com/forums/phpBB2/viewtopic.php?t=3313
suurland illuminate this with hdri. Modify the horiz. or vertical rotation of the hdri image to obtain the desired effect

7

the right hdri would, you’ll need to simulate the studio setup with lights/white cards in the right places.

8

You don’t need to create a hdri from the exact studio setup, just model the exact studio setup around your model. use output amounts higher than 1 for your white reflection cards, this will give you your high dynamic range.

Although I think part of the reflections on the yellow car image are done in post, so it will be difficult to figure their studio setup

9

i ve also made a light card hdri using photoshop and hdrishop…works fairly well.

10

thanks :smile:

11

Could you please explain how to do this? I’d be very grateful to know.

Thanks and cheers,

Metin

12

the simplest way is that you scale the pixel value (>image/pixels/scale)
I also made some hdri like that. Some image works fairly well, some of them you better adjust saturation before you scale. After few image you’ll see it.

13

:?: There is no Pixels entry in Photoshop’s Image pull-down menu. Or do I not understand what you mean?

You can change a picture to a 16-bits per channel image in the Image > Mode submenu. Maybe I should look in that direction?

Thanks ‘n’ cheers,

Metin

14

No-no, you make your image in photoshop, for example a black background and a white spot somewhere. THen you save it as a bmp or something like that. Open in HDRshop then you go image menu/pixels/scale and type for example 5 for all channels (R.G.B)
THen the low dynamic rage value of the bitmap will be scaled, so in this case white will get 5, black will remain 0. (originally white was 1, black 0,) . If you use higher bitdepth when you making your hdri map in photoshop you’ll get more accurate result. Wider range you’ll scale, smaller the steps beetween neighbor values.

15

Cool, thanks for the tip!

Cheers,

M7

16

if u got brazil u could try this, it works fine with vray :