Making Grass on a Contoured Plane using Displacement?
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@andybot said:
Well, if you are capable with Photoshop, I can suggest adding grass after the rendering by using a Material ID mask, as I explain here:
http://charlottesvillearchitecturalrendering.com/?p=127really thanks Mr.Andybot!
actually i'm not familiar with photoshop works but the tutorial motivate me..
btw this Alpha.jpeg always appear as i save a render scene:
so i need to replace the white coloured to a grass.jpeg
and how to make the overlay grass pic in photoshop if i do a closer view?
(mine, the meet between black and white is straight line) can i make them grassy line? -
My diffuse is just a grass texture map from the web, not noise. It's the displacement map that's using noise and makes the grass spikey. White as color A and black as color B and the size is set to .005. That's all I did. My displacement settings are 8.0 on the amount and 256 subdivs and 1.0 on edge length. Turn off Use Globals so this doesn't get overridden. Your light cache will take a while to calc, so turn that down to like 200 sudivs to do your test renders.
Make sure your faces are forward facing and the grass object is its own group outside of any other groups. In other words, not nested into a site group or something like that.
For a nice grass texture, just look on CG Textures for one. Best site for textures in my opinion. http://www.cgtextures.com/
Now give it a try my student, and post your render! When the class likes what they see, share your vismat for all to enjoy!
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Here is my second pass at it. 45 min render time on this one.
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From my years of experience , if your surface is not
- A golf course
- A straight large plane with little bits of curve
Then
Go for make fur plugin. Its works well with short and small corners, giving it that realistic look
Below are some attachments.
This took 2 mins to render. Not sure why you took 45mins
Afer Vray and plugin --->
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Fur is great, but I have issues trying to fur an entire front lawn.
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@valerostudio said:
Fur is great, but I have issues trying to fur an entire front lawn.
True. The trick is to only place grass from where you intend to render, Hence in this photo there is no grass/fur plugin used(Behind the house) since that plane is hidden.
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What we really need is VRay Fur inside of SketchUp!
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@fuzzion said:
@valerostudio said:
Fur is great, but I have issues trying to fur an entire front lawn.
True. The trick is to only place grass from where you intend to render, Hence in this photo there is no grass/fur plugin used(Behind the house) since that plane is hidden.
[attachment=0:2fvsrfcp]<!-- ia0 -->Futzer2.jpg<!-- ia0 -->[/attachment:2fvsrfcp]
unfortunately, the scale is way off there. That's much coarser than real grass. To get it fine enough, you would run out of memory pretty quick.
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I have to agree with Andy on this one. The only way to really render grass is proxies or something like VRayFur. Watch this and dream of having these abilities one day in SU!
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@andybot said:
@fuzzion said:
@valerostudio said:
Fur is great, but I have issues trying to fur an entire front lawn.
True. The trick is to only place grass from where you intend to render, Hence in this photo there is no grass/fur plugin used(Behind the house) since that plane is hidden.
[attachment=1:18jit4q3]<!-- ia1 -->Futzer2.jpg<!-- ia1 -->[/attachment:18jit4q3]
unfortunately, the scale is way off there. That's much coarser than real grass. To get it fine enough, you would run out of memory pretty quick.
Its called cow grass
[attachment=0:18jit4q3]<!-- ia0 -->Rumput 1.jpg<!-- ia0 -->[/attachment:18jit4q3]
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