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In situ car render
show user profile  zeefusion
It has been a long time since i have posted any work on here due to work keeping me busy enough. I thought id start a project and that is to as realistically as possible park an Audi R8 outside my house.

I have not done anything like this before so I’m learning new tricks when matching lighting and reflection to a photo.

I have looked at a few methods,
Vray sun & sky with HDRI environment map
HDRI image based lighting
Direct light with Vray shadow and HDRI environment

Each produce un-wanted results mainly to do with the HDRI map. The image based lighting was my favourite choice and I really wanted to get this working but after trying out many different HDRI maps I was either able to get the lighting levels right but not the reflection or the reflection right but the lighting wrong.

The parking space is in shadow so although it’s a sunny day the car produces soft shadow.
The image below is where I am at and I’m currently using a direct light with Vray shadow and HDRI environment. The HDRI is a map taken from the spot the car is in but the reflections are just not working.

The headlights look way too dark :/ and the reflection is just crazy

What can I do to improve? Is a direct light with Vray shadow and HDRI environment the best way to go?

read 2000 times
2/3/2011 9:40:26 PM (last edit: 2/3/2011 9:41:01 PM)
show user profile  Pil
Good start.

You could match the grain/noise in your render to the background.
Also match the darkness of the shadow under the car to that of the background.

read 1993 times
2/3/2011 9:43:22 PM (last edit: 2/3/2011 9:45:02 PM)
show user profile  Mr_Stabby
the lens size is also off a bit, try smaller

read 1977 times
2/3/2011 9:51:40 PM (last edit: 2/3/2011 9:51:40 PM)
show user profile  zeefusion
Yeah im going to add noise grain etc in post which will help but matching the lighting and reflection is porving to be a absolute b*tch
read 1976 times
2/3/2011 9:52:26 PM (last edit: 2/3/2011 9:52:26 PM)
show user profile  zeefusion
lense size? I camera matched the photo :/
read 1975 times
2/3/2011 9:53:03 PM (last edit: 2/3/2011 9:53:03 PM)
show user profile  ScotlandDave
The most obvious thing to me dude is the black levels in the car not matching the photograph. I think this is where lwf would really come in handy, even with a basic lighting/hdri setup..

Might also be worth considering vray sunlight for lighting and hdri just for reflection..

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read 1947 times
2/3/2011 11:01:32 PM (last edit: 2/3/2011 11:02:32 PM)
show user profile  Mashedpot8er
I'm with ScotlandDave. The blacks look way too black. Also the blown out patch of house isn't blown out in the reflection on the car. I'd expect to see much, much more of a highlight on the roof and quite a bit of light going into the car from the rear, from the light reflected off the house. Your glass might be a bit dark too. The reflection on the body looks too strong too. White doesn't tend to reflect that much compared to darker colours. Have a look about next time you're in traffic :)

Cad Monkey

read 1938 times
2/3/2011 11:47:11 PM (last edit: 2/3/2011 11:48:28 PM)
show user profile  zeefusion
Here is an update, i have brightened up the blacks and played with the reflection. IMO it looks a little washed out but this can easily be fixed in post.

My main concern is getting it 90% there in max before i do any post work.

read 1890 times
2/6/2011 8:30:48 PM (last edit: 2/6/2011 8:30:48 PM)
show user profile  Mashedpot8er
Looks much better mate. As you said all the blacks are too washed out now, but its sitting much better in the image. Good stuff :)

Cad Monkey

read 1885 times
2/6/2011 8:40:35 PM (last edit: 2/6/2011 8:40:35 PM)
show user profile  zeefusion
Here is an update, unless there are any major crits I’d say this is done. I’m trying to get it as realistic as possible, but I have been starring at it for so long I need others opinions.


read 1823 times
2/18/2011 9:12:12 PM (last edit: 2/18/2011 9:12:12 PM)
show user profile  npcph
Very nice. the car seems a little..... crisp or birght... not exactly sure what it is, bust still a little comp look to it. Not sure what it is... just something.
Very minor though.

read 1812 times
2/18/2011 9:26:34 PM (last edit: 2/18/2011 9:26:34 PM)
show user profile  markoid
I think the comp looks great now, but one thing that my eye goes to immediately is the windscreen, which looks like it has no seal around it.

read 1793 times
2/18/2011 11:05:07 PM (last edit: 2/18/2011 11:05:07 PM)
show user profile  zeefusion
Ha no way i didnt even realise! I will fix that, but before i do is there anything else out of place?
read 1784 times
2/18/2011 11:51:52 PM (last edit: 2/18/2011 11:51:52 PM)
show user profile  CarnivoreMan
via the keen gaze of my untrained eye, the blacks look too dark again. I'd say a cross between your last two renders would be about right.

read 1769 times
2/19/2011 12:48:25 AM (last edit: 2/19/2011 12:48:25 AM)
show user profile  zeefusion

hows this?
read 1748 times
2/19/2011 2:11:19 PM (last edit: 2/19/2011 2:12:34 PM)
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