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House, Specifically Window Reflection
show user profile  Chris123643
Hi Everyone,

I do a lot of these house renders but they don't ever really get better unless I take some time out and study how to make them better. I'm going to work on my window reflections. I know I'm using the wrong technique at the moment (pretty much just trying my best in photoshop)

I remember you guys talking in another thread (that I can't now seem to find) about using a dome light with a image on it or something, I think it was Strat. Can any of you describe the best way to do these window reflections, either a quick explanation or a nudge in the right direction for a tutorial?

Also any other ways to improve this render. I currently use the vray daylight system.

 photo House.jpg


read 691 times
1/10/2014 10:49:20 AM (last edit: 1/10/2014 10:49:20 AM)
show user profile  herfst1
You need hdri. Here are the steps.

1. You need a map,http://www.viz-people.com/free-stuff

2. Press "8" and load your map.

3. Press "m" and instance your map from the environment slot into one of the material editor slots.

4. Change the mapping to spherical.

5. Put a dome light in your scene and instance your map into its texture slot.
read 690 times
1/10/2014 10:54:35 AM (last edit: 1/10/2014 10:56:43 AM)
show user profile  donvella
what herfst1 is saying.

if you want an indepth tutorial (which i highly recommend) try this:
http://www.peterguthrie.net/blog/2012/02/hdri-lighting-workflow

btw i highly recommend you work on your textures + falloff, variation in (such as the repeating roof tile, floor tiles, you could add leaks dirt and muck to the bricks & render - simply using a standard texture looks lazy, add some wear and tear) + camera techniques. Simply using a vray camera is not enough, you need to adjust the shutter speed, dof & camera lens. It really comes down to understanding photography a little more.




read 678 times
1/10/2014 11:04:26 AM (last edit: 1/10/2014 11:05:50 AM)
show user profile  ScotlandDave
I would say to start with the following:

Compositionally i think it could be stronger.
Ambient occlusion would help particularly where the house meets the ground.
Reflection and spec maps - everything has reflection properties even if very subtle and blurry/diffuse. I tend to add blurry reflections even to rough and typically non-reflective surfaces even at a very small percent..
The sky is quite low-res and a bit naff imo ofc :)
I`d use a small modern hatchback for the car as it`s more generic and contemporary.
The bump mapping on the brick is a little too high.
Mapping on the chimney looks a little off..
I think HDRI would work well to gradiate and add interest to the reflections overall and not just the windows, even if the main lighting system is daylight..

All that said, i reckon house exteriors must be about the hardest thing to make look good.



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read 677 times
1/10/2014 11:04:57 AM (last edit: 1/10/2014 11:04:57 AM)
show user profile  Chris123643
Don't expect anyone to hold my hand though this, but if its an obvious mistake let me know, after the first little play this is the result...

 photo house2.jpg

Think I need to go though some tutorials.


read 660 times
1/10/2014 12:02:27 PM (last edit: 1/10/2014 12:02:27 PM)
show user profile  herfst1
In the material editor you can up the multiplier.

Also, stupid question, indirect illumination is on? Pretty sure it has to be on for it to work.
read 654 times
1/10/2014 12:30:01 PM (last edit: 1/10/2014 12:30:01 PM)
show user profile  Chris123643
yeah, irradiance map and brute force


read 648 times
1/10/2014 12:58:01 PM (last edit: 1/10/2014 12:58:01 PM)
show user profile  RedStar
Can you please post a picture of the windows material?

Also you need to work on tillable textures. Right now that tillable look is definitely making it look fake.
read 622 times
1/10/2014 4:06:12 PM (last edit: 1/10/2014 4:06:12 PM)
show user profile  STRAT
If you still want awesome window reflections and are finding setting up the HDRI bit hard, you dont meed HDRI ;)





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read 618 times
1/10/2014 4:26:10 PM (last edit: 1/10/2014 4:26:10 PM)
show user profile  Chris123643
go on Strat... you just do the same thing but use a bitmap instead of the HDRI? Always looking for the simplest way to do it, I can do some nice grass with vRay displacement, but it just uses too many of my computers resources to make it worth it.


read 581 times
1/13/2014 9:46:46 AM (last edit: 1/13/2014 9:46:46 AM)
show user profile  GirishDJoshi
I find reflections big pain the ass as well. Solution please :D Materials wise I am okay, but getting the right reflections is where I am stuck. I use PS to that later on :P


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read 530 times
1/14/2014 12:10:11 PM (last edit: 1/14/2014 12:10:53 PM)
show user profile  Chris123643
Took me a while to get the hang of it, I faced a couple of issues, but got my HDRI to work in the end am I'm pleased with the results, think I've found myself a new way of working.

Thoughts?...

 photo ChiltonHouse.jpg


Girish, I tried to use HDRI in an existing scene with no success, what I did to get it to work is to follow a tutorial on youtube step by step and it worked on a teapot, so I imported my model into that scene and it worked. Must have been a setting somewhere messing it all up. Try getting it right on a teapot first, then apply the same to your scene.


read 499 times
1/16/2014 10:30:52 AM (last edit: 1/16/2014 10:30:52 AM)
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