Matt's Gallery

[frip51]

Folks,
let me take the opportunity to start my own gallery here.
A few words about my approach:
I never use post processing, everything has been created using the different options in V-Ray. This might be a slow process in some cases, but I seldom care about render time

I'm quite curious what you guys have to say about the images I'm going to post every now and then...





I'll kick off with a little exterior test rendering I let calculate in the background during my work hours. The purpose was to check how I could do grass using displacement. Well, I ended up in randomly placing objects from my library around the scene and so this here image happend.
And always remember to park your concept car in the cool shade of a tree
Thanks jeanat9 for the Audi!

[frip51]

Re: Matt's Gallery

I thought the image could use some minor tweaks...
- diffuse wall texture made and added
- grass next to wall improved, some grass blades geometry added
- seagull billboards added
- vapour trail billboard added



edit: rendertime 0:22:2 incl. DOF

[2002_cg]

Re: Matt's Gallery

Hello Matthias!

The displacement looks pretty good, you could still try to add some reflection (and translucency) to the material. Same thing for the leaves in the trees.
Nice render!

Best regards
Simon

[frip51]

Re: Matt's Gallery

Hello Simon,
reflexions and translucency for the lawn...

As for the first one, I guess it would cause the material to appear wet, wouldn't it? Now that I have those brown spots, it looks like a picture taken in mid-summer where I'd rather stick to the dry-as-hell look.

Regarding translucency, this might be a good one for both grass and leaves. It'll boost rendertime into the stratosphere, but who cares?
Just need to figure out how to implement translucency in the leaves material, since I've used a transparency map in the diffuse layer to cut out the shape. As far as I know, translucency doesn't like 0 or 255 values in there... ???

[frip51]

Re: Matt's Gallery

...I'm on it, if I get a result by the end of the day, I'll post it

[frip51]

Re: Matt's Gallery

...here it is:

- 2SidedMtl and .7 reflexion applied to leaves
- .7 reflexion applied to grass

Hey, that just took ;D forever: 1:51:0 (dr didn't want to help out this time)



And now, it looks blueish... of course, it's reflecting the sky. But tweaking the white balance will result in overly yellowish trees in the background (they're billboards without reflexion - wouldn't make sense to add a reflexion layer to them).

The tree appears more lively, though!
As for the grass, you were right - it's just a little fresher. And the small bumps come out more visible.


Alright, let's move on to pastures new

[2002_cg]

Re: Matt's Gallery

GOOD WORK!

[fpedrogo]

Re: Matt's Gallery

The setting that is killing your render time is the "Edge length" for the displacement. Try to increase that number a litter bit. That option basically controls the quality of the render and by default the option "view dependent" is enable. A value of 1.0 means that the longest edge of each subtriangle will be about one pixel long when projected on the screen. So. The bigger render will have more subtriangle, therefore more render time. My recommendation is that reduce the value for "Edge length". The default value is 4, so I should said 6 or even more.

[arqestevez1]

Re: Matt's Gallery

extremely slow, but really cool result. i liked your camera position

[frip51]

Re: Matt's Gallery

Fernando,
I believe it's all summing up - the double sided material I've used for the many many leaves, the blurry reflexion defined in leaves and grass materials, the double noise blend in the grass displacement.
Rendertime without the tree is 0:18:0 and increasing the edge length to 6px in this setting only brings it down to 0:16:5. Removing the reflexion layer results in 0:10:12.

btw, do you see this line of shadow in the groundplane, going from the lower left edge to the corner of the wall? That surely comes from the render mesh, but how do I get rid of it?


Omar,
hehe, yes, way too slow - and that with these machines:

Desktop
2x E5530 Xeons (2.4GHz)
3.23GB RAM
Win XP 32

Notebook
Q9300 (2.53GHz)
2.49GB RAM
Win XP 32


Now, I've seen both pros and cons of having displacement lawn as a basis. Thanks indeed for your opinions guys!
Let's see what comes up next

[frip51]

Would you like some Heavy Dust with your rotten Juice?

Continuing the displacement exercises, I decided to render something dirty or dusty.
This is what came out:

[-Keith]

Re: Matt's Gallery

Matthias that is the best looking dust I have ever seen. Good Job!

[frip51]

Re: Matt's Gallery

Cheers mate!
It's quite simple:

- In Photoshop, apply the [Add Noise] Filter to a white layer. Tick "Gaussian" and "Monochrome", keep effect value low, I did it pretty heavy using 12%
- Add details such as wiped areas as you like
- In VfR, load it as transparency controller in diffuse and reflexion layers

- Do one inverted map in Photoshop, load it as displacement map into the material - maybe play with intensity (multiplier/gamma)

Done.


I really turned up the displacement quality and kept the height as low as possible.

[DaveReyes]

Re: Matt's Gallery

Great render matt, you are doing a great job trying diffrence materials and test with vray. My only critic will be the glass and liquid its weird, can you make a render again and instead of a glass use a book and try to add the same dust material to the book!

[DaveReyes]

Re: Matt's Gallery

Matt i love your grass could you share your vismat.