How to render the grass ?

Generic forum to discuss Octane Render, post ideas and suggest improvements.
Forum rules
Please add your OS and Hardware Configuration in your signature, it makes it easier for us to help you analyze problems. Example: Win 7 64 | Geforce GTX680 | i7 3770 | 16GB
Post Reply
dadou351
Licensed Customer
Posts: 92
Joined: Tue Jul 13, 2010 7:43 am

I would like to know how to produce of the grass with Octane Render?

I know that on 3DS Max there is a function Vray grass and which is very useful.

About proxies, does it work on Octane Render?

Thank you

Here it's a project with Octane Render :
http://www.evermotion.org/tutorials/sho ... der-review
User avatar
ROUBAL
Licensed Customer
Posts: 2199
Joined: Mon Jan 25, 2010 5:25 pm
Location: FRANCE
Contact:

I tried to create a large grass field using square billboards supported by a subdivided plane, using Blender Duplivert feature, and rotated and resized randomly.

The Billboard image is a photo taken in close up of a simple tuft of grass. I have erased some parts by hand on the photo to allow transparency and kept some lone grass blades.

I'm almost sure that starting from a simple plain green color in Photoshop and adding a bit of details and color variations would almost work the same.

The image shown is only a trial. Adding various kinds of billboards with some flowers or longer grass blades would give more life to the scene.

It worked well, except one thing : I had to take care of the direction of the sun, because currenly transparent materials still cast a shadow, and the small planes were shadowing each other, creating sometimes bad dark shapes.

I attach an example of my trials, but I'm sure that you will find some better visual examples in the gallery.

I really hope that future releases will solve this problem of transparency.

Many billboards means memory consuption. Instances will be also welcome to create grass using less memory.
Attachments
GrassTest_002.jpg
Last edited by ROUBAL on Sun Dec 05, 2010 12:56 pm, edited 1 time in total.
French Blender user - CPU : intel Quad QX9650 at 3GHz - 8GB of RAM - Windows 7 Pro 64 bits. Display GPU : GeForce GTX 480 (2 Samsung 2443BW-1920x1600 monitors). External GPUs : two EVGA GTX 580 3GB in a Cubix GPU-Xpander Pro 2. NVidia Driver : 368.22.
dadou351
Licensed Customer
Posts: 92
Joined: Tue Jul 13, 2010 7:43 am

OH yess thanks very much :)
Post Reply

Return to “General Discussion”