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Parasites - Procedurally Growing Organism ?


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How would you grow a parasite ?

Hi,

- I am going to "try" to create an organism which is something like parasite or some kind of fungi [located on trees]

- The thing is that before I get started working on this effect, I wanted to take some advices and suggestions from you guys who are interested.

- I was thinking about using L-Systems to get the effect but I am sure that there are other ways too.

- I also will need to create a custom shader in VOPs to get the realistic effect.

Any Suggestions, Ideas, or references about how to create the system and the shader would be appreciated.

Thanx in advance.

* I am putting some references to illustrate the effect that I need to achieve.

References [ BBC- Planet Earth Series ]

Video File:

Parasite - BBC Planet Earth

Images:

par1.jpg

par2.jpg

par3.jpg

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as far starting with this, i would go old reliable metaballs, lots of them!!

animating the weights and converting to geo once you've gotten you're shape right!!

good luck!

Thanks for the tip jeffrey. I am gonna try animating the weight

cheers

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Looks like branching structures to me = lsystems or trailing particles.

at the moment I am experimenting with l-system

But u r right trailing particles will also work I am gonna give a shot.

apart from that the shading scares me a little bit.

because I haven't touched subsurface scattering before.

need to check the sss posts :rolleyes:

cheers

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For the shader you may want to look at some of the wrok by the winner of the last Houdini contest, Serg. You can see his project at http://www.sidefx.com/index.php?option=com...opic&t=6420. He had some great ideas that may come in handy for you.

thanks jjstanley,

I have already checked Serg's sss solution and its really clever [ respect ] :)

at the moment I am doing some experiments with Mario's SSS shader which is perfect.

Besides, render times are a bit heavy so maybe I might need to use Serg's solution.

By the way I am using Marc's [correct me if I am wrong] pcplastic shader as well, which helps a lot with the internal colours

Thanx again for the link

-------------

this is the first shading test.

post-1831-1184714095_thumb.jpg

cheers

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SEQUENCE TEST - Flicker

Hi,

I made a sequence test with Mario's SSS shader.

However, it is somehow flickering. looks like a lighting artifact but the light is fixed

I think the Problem will be point cloud sequence

I am posting the parameters, light position and the video.

If anyone has an idea what the problem is...

need help

cheers

Flicker Artifact !!! - Video File

flicker.mov

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SC_Shot_01

post-1831-1184953596_thumb.jpg

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Shader Parameters (MultipleScattering)

post-1831-1184953589_thumb.jpg

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Shader Parameters (SingleScattering)

post-1831-1184953532_thumb.jpg

---------------------------------------

PointCloud Parameters (Cloud Generation)

post-1831-1184954189_thumb.jpg

---------------------------------------

PointCloud Parameters (Density Estimate)

post-1831-1184954194_thumb.jpg

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