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Author Topic: How can I reduce poligons correctly?  (Read 2037 times)

The_Hermit_1971

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How can I reduce poligons correctly?
« on: April 03, 2010, 05:53:20 pm »

Hi people! I'm new to Anim8or and I need a good way to reduce poligons in my models whitout loosing quality. I searched the Web for free poligons reducer but wasn't able to find a good free one. Is there a technique that Anim8or users usually use? Is there any free good poligon reducer that you know of? Thanks in advance
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$imon

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Re: How can I reduce poligons correctly?
« Reply #1 on: April 03, 2010, 06:17:21 pm »

It depends highly on the model you have how you can go about reducing polies.. Maybe if you show a wireframe of the model you are trying to reduce it is easier to say something about it.
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Kubajzz

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Re: How can I reduce poligons correctly?
« Reply #2 on: April 03, 2010, 06:17:59 pm »

First of all, it is not possible to reduce the number of polygons without loosing quality. You have either good quality, or low polygon count... The best you can do to keep the best quality is to reduce the polygons by hand, but it takes some time...

As for an automated poly reduction, there is an ASL plugin called "Poly reducer" that might help you, you can find it here: http://www.anim8or.com/smf/index.php?topic=1705.msg12724#msg12724

There are 2 problems though. First, the plugin only works on triangulated meshes. Second, the plugin is very slow. If your mesh has more than 1000 triangles, the plugin execution will probably take about 10 minutes. I don't recommend trying 1000+ meshes...

If this plugin doesn't do what you want, you'll need to find a good external tool, I can't really help you with that...
« Last Edit: April 03, 2010, 08:17:36 pm by Kubajzz »
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The_Hermit_1971

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Re: How can I reduce poligons correctly?
« Reply #3 on: April 03, 2010, 07:57:33 pm »

Thanks for your answers!
Quote
Kubajzz wrote:
First of all, it is not possible to reduce the number of polygons without using quality. You have either good quality, or low polygon count... The best you can do to keep the best quality is to reduce the polygons by hand, but it takes some time...
Is it posible to keep the basic shape then? The mesh are the human models obtained from Makehuman. Poly count ranges from 25,000 to 30,000 so I guess the plugin will be very slow on those models. Actually I plan to divide those models into head, legs and arms and merge them with some shirts, caps and short pants models that I'm modeling. I plan to put together some models with polo shirts, caps and short pants using the head , legs and arms fron Makehuman models. Do you have any idea about the easier way to do this? Thanks in advance!
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$imon

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Re: How can I reduce poligons correctly?
« Reply #4 on: April 03, 2010, 08:13:41 pm »

25000 polies for a human model? That seems a bit over the top.. Are you sure you're not exporting it subdivided? Or maybe extra artifacts you dont need (I'm reading something here about a skeleton)

Anyway, there is no real quick way to lowering the poly count on an organic model like that. Especially not since the makehuman models are exactly generated to be optimal in that polycount.

There is the long way around -- deleting loops by hand, but that is very time consuming and requires some knowledge as to what to delete and what not.

Maybe you can find a human model somewhere else that is more low-poly?

I don't have any other ideas on that.

Making clothing from the body itself is a good way to get the basic shape correctly, but after that the clothing might need a bit of adjusting to fit the model 'naturally'
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MP3D

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Re: How can I reduce poligons correctly?
« Reply #5 on: April 04, 2010, 06:48:26 pm »

us Meshlab. It is very fast at reducung poly count and you can control what areas you want to do this in ...or the whole model


http://www.icewalkers.com/Linux/Software/533210/MeshLab.html

MP3D
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