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General => Image Sharing => Topic started by: Henry Blewer on September 12, 2009, 07:18:30 PM

Title: Wind Generator Test Image
Post by: Henry Blewer on September 12, 2009, 07:18:30 PM
A jpeg of a simple landscape with the wind generators. I can not think of how to get motion blur for the blades. Here is a link to the Blender file and tgo file in a zip archive.

http://forums.planetside.co.uk/index.php?topic=7539.0
Title: Re: Wind Generator Test Image
Post by: cyphyr on September 12, 2009, 07:23:13 PM
Good start, have you had any success animating the blades?
I did some work for a wind farm construction company, REP and Vestas, I'll post up some details in the morning.
The one thing they kept coming back about was that the turbines NEVER line up with the blade rotation.
Richard
Title: Re: Wind Generator Test Image
Post by: Henry Blewer on September 12, 2009, 07:25:05 PM
The Blender file can be modified to anyones content. I set up the model so the various parts can easily be selected.
Title: Re: Wind Generator Test Image
Post by: Kadri on September 12, 2009, 07:33:06 PM
İf Terragen 2 accepts transparant or alfa in images,make a semi transparent plane in blender with motion blured rotor (in 3d or 2d) and stick on the same place.İ hope it makes sense what i sad.
Cheers.
Kadri
Title: Re: Wind Generator Test Image
Post by: Mandrake on September 12, 2009, 08:36:26 PM
By the size of the wings, it looks like they need to be taller, but your the engineer.
I like it!!
Title: Re: Wind Generator Test Image
Post by: cyphyr on September 12, 2009, 08:44:00 PM
I have some meter accurate scale models of wind turbines, I'll upload tomorrow :)
Richard
Title: Re: Wind Generator Test Image
Post by: Henry Blewer on September 12, 2009, 08:44:21 PM
I thought about lengthening the blades. They started to fade out. Also, I wanted room for trees underneath.
The alpha image would have been a good idea, but I use procedurals almost exclusively in Blender. Also I wanted the generator to be at 'rest'.

Cool Richard! I did not go for accuracy in the model, just the basic shape.
Title: Re: Wind Generator Test Image
Post by: Mandrake on September 12, 2009, 08:47:51 PM
You make the blades any longer and they'll be carving the ground man. Make the tower taller.
Title: Re: Wind Generator Test Image
Post by: Cyber-Angel on September 12, 2009, 09:50:20 PM
The correct name for these is Wind Turbine not Wind Generator, Generate implies the creation of some thing such as Electricity. Wind Turbines such as the two bladed example shown here convert some thing into some thing else; in this case wind energy into Electricity.

The title "Wind Generator" implies that they create wind when this is not the case! A change of Tile to "Wind Turbine" is suggested.  ;D


Regards to you.

Cyber-Angel      
Title: Re: Wind Generator Test Image
Post by: Henry Blewer on September 12, 2009, 09:57:33 PM
Thanks. At least the label gives an idea of function. I really just wanted a low poly count model if FrankB wanted to use my suggestion of wind turbines in the landscape he is currently working on. For the scale they would be in his image, they would look pretty cool.
Title: Re: Wind Generator Test Image
Post by: FrankB on September 13, 2009, 04:49:52 AM
Quote from: njeneb on September 12, 2009, 09:57:33 PM
Thanks. At least the label gives an idea of function. I really just wanted a low poly count model if FrankB wanted to use my suggestion of wind turbines in the landscape he is currently working on. For the scale they would be in his image, they would look pretty cool.

They do have a tapered shape, but not as much as in your model. Found this picture for comparison:
http://www.huus-witt-wulkje.de/images/Windrad.jpg
This should also give you an idea about the blade size. This following image also gives an idea on how to make blades look rotating fast. http://roth-harald.de/resources/Windrad2.jpg
In the end, you probably don't need distinct blades at all, just a blade with a color / alpha gradient.

A fee wind turbines would be nice in the farmland image, indeed.

Njeneb, your clouds are nice.

Cheers,
Frank
Title: Re: Wind Generator Test Image
Post by: cyphyr on September 13, 2009, 05:19:48 AM
Wind Turbines don't rotate that fast, about one rotation every three seconds, they are built to maintain a constant rotation speed in different wind conditions.
Richard
Title: Re: Wind Generator Test Image
Post by: FrankB on September 13, 2009, 09:30:06 AM
you're right, they rotate with a rather small angular velocity.
Title: Re: Wind Generator Test Image
Post by: Henry Blewer on September 13, 2009, 10:37:11 AM
Here is a link to Cypher's wind turbine. It's a better model than mine. Thanks Cypher! 8)

http://forums.planetside.co.uk/index.php?topic=7544.0

edit: Thanks for the compliment on the clouds!