May 2005 Archives

Basic lighting techniques

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Opponents of Computer Graphics as an art form are often tempted to fall for the myth that making images on a computer is as easy as a few 'point and click' operations, and therefore remove all technical and artistic value to CG creations.

What they seem to forget is that CG graphics are governed by the same rules of composition, lighting and color as photography, painting or drawing. Computers may make some tasks easier, but they do not replace the 'eye' and experience of the artist.

If you want to improve the way your CG images look, especially if you are just beginning to play with tools such as Vue or Bryce, do not understimate the value of going over material written for natural media. The tools may be different with a computer, but the basic techniques are the same.

A very simple way to improve dramatically a CG image is by taking control of the lighting. Start by reviewing basic concepts on this great tutorial about Lighting Techniques by Amaan Akram.

Once you are done with this introduction, you can start taking control of your lighting by following this tutorial about the Three Points lighting technique, an excerpt from one of the main bibles of CG Lighting available in print : [Digital] Lighting and Techniques by Jeremy Birn.

You can finish by reviewing "3d Lighting Setups: 3 Point Lighting" by Jenn Downs, as a practical example of how to apply this technique to a particular software package, 3D Studio Max, although if you can read past the specific details of this application, it should not be very difficult to translate it to your favorite 3D package.

Once you start applying these techniques to your own images, you will be amazed how much impact the right lighting can have. And if you get carried away like I did, you will start noticing how light is composed in anything you look at, from movies and paintings  to everyday scenes.


Fabric Set 1

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Fabric Set - 700 K

This Fabric Set was created at the occasion of a Technical Challenge on the Vue Forum at Renderosity.

It has been tested for Vue d'Esprit 4.
One of the materials is no longer compatible with Vue 4 Professional, Vue 5 and above.

Clean up lights

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A Python script to delete all lights under a particular intensity value.

This Python script has been tested on Poser Pro Pack and Poser 5 (Windows).

Reset Lights

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A simple Python script to delete all lights in a scene and replace them by a single default spotlight. Useful when 'empty' lights accumulate after applying multiple preset lightings.

This python script has been tested on Poser Pro Pack and Poser 5 (Windows).
Note that Poser 6 includes a similar script by default.

Textured Mowlip

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  • 2.8 M
  • Poser ready archive
  • Unzip in your poser directory
  • Look for the new character under 'character -> Traugs' and new poses under 'pose -> Traugs'
  • This character is part of the Traug Project. Check out peejay's site to find out more about this project.
Here are links to my current mini-tutorials in their old format. I will gradually update each one of them into something more usable but for the time being, these links will remain.

What is Vue ?

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Vue d'Esprit is a 3d graphics package  from a french/american company called e-on software.

Initially, it was a direct competitor to landscape modelers such as World Builder or Bryce. With time, it has evolved into a nearly professional tool which remaining still affordable.

To get an idea of the power of Vue, try the Vue Gallery at Renderosity and the picture of the day at e-on.

One of the best places on the web to discuss about Vue D'Esprit is the Vue Forum at Renderosity. There, you can find tutorials, free resources to download and most importantly, a friendly group of people sharing the same enthusiasm for this tool.
Since I took on the role of Moderator of the Vue Forum at Renderosity about a year ago, I have come to accumulate a small collection of tips, resources and tutorials either as answers to questions on the forum, requests for articles or just personal discoveries.

Since I am in the middle of adding more flexibility to Linfa.net, this is a good occasion to organize these notes into something more coherent.

I hope you will find it eventually helpful...

Treats for Free

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This section will contain resources for Computer Graphics available to download.

Unless marked otherwise, these files are placed under a Creative Commons Attribution License, which basically says that they can be redistributed and used in commercial and non-commercial works, as long as they are redistributed using the same license and credits are given.

It also means that you cannot pass these files as your own, and you have to use the same license if you decide to sell these files.

Remember the golden rule of copyrights - If you have any doubt or question, the best is always to ask permission.

I am not known to bite people with questions