Commit 2c26c344 authored by Laurent Belcour's avatar Laurent Belcour
Browse files

Converting the mainpage of the website to Markdown

parent 2dd48c33
......@@ -85,10 +85,6 @@ p.endtd {
/* @end */
caption {
font-weight: bold;
}
span.legend {
font-size: 70%;
text-align: center;
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}
table.doxtable {
font-size:90%;
border-collapse:collapse;
margin-top: 4px;
margin-bottom: 4px;
margin-top: 4px;
margin-bottom: 4px;
}
table.doxtable td, table.doxtable th {
border: 1px solid #2D4068;
font-weight:normal;
padding: 3px 7px 2px;
}
table.doxtable th {
background-color: #374F7F;
color: #FFFFFF;
font-size: 110%;
color: #000000;
padding-bottom: 4px;
padding-top: 5px;
}
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border-bottom: 1px solid #A8B8D9;
}
.tabsearch {
top: 0px;
left: 10px;
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.caption
{
font-weight: bold;
font-size:90%;
font-weight: normal;
}
div.zoom
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......@@ -8,79 +8,53 @@ You can <a href="contacts.html">contact us</a> to get more information
about its features, roadmap, and missing documentation.
</center>
<h3>Description</h3>
ALTA is a multi-platform software library to analyze, fit and understand
BRDFs. It provides a set of command line softwares to fit measured data to
analytical forms, tools to understand models and data. You can find an
overview presentation of ALTA <a href="http://hal.inria.fr/hal-01016531">here</a>.
### Description
ALTA is part of the <a href="http://maverick.inria.fr/Projets/ALTA/ ">
ANR 11-BS02-006</a>, a research project on light transport analysis.
ALTA is a multi-platform software library to analyze, fit and understand BRDFs. It provides a set of command line softwares to fit measured data to analytical forms, tools to understand models and data. You can find an overview presentation of ALTA [here][alta-wk].
<h3>Target audience</h3>
You are working on BRDFs and you want to <b>benchmark new BRDF models</b> and
compare them with state-of-the-art BRDF models and data easily. You have working
on optical measurements and you want <b>experiment different fitting procedures
and models</b>, or just perform <b>statistical analysis</b> on your data.
[alta-wk]: http://hal.inria.fr/hal-01016531
<h3>Features</h3>
ALTA is part of the [ANR 11-BS02-006][alta-anr], a research project on light transport analysis.
Here is a list of the major features in the ALTA library (you can find
the complete list in the \ref features page):
[alta-anr]: http://hal.inria.fr/hal-01016531
+ Open common BRDF data formats (MERL, ASTM)
+ Non-linear fitting of BRDF (using third party packages)
### Target audience
+ Rational interpolation of BRDF
You are working on BRDFs and you want to **benchmark new BRDF models** and compare them with state-of-the-art BRDF models and data easily. You have working on optical measurements and you want **experiment different fitting procedures and models**, or just perform **statistical analysis** on your data.
+ Analytic BRDF models (see \ref functions)
### Features
Here is a list of the major features in the ALTA library (you can find the complete list in the \ref features page):
+ Open common BRDF data formats (MERL, ASTM)
+ Non-linear fitting of BRDF (using third party packages)
+ Rational interpolation of BRDF
+ Analytic BRDF models (see \ref functions)
+ Scripting mechanism to automatize fitting
<h3>Sample results</h3>
### Sample results
<center>
<table border="0" style='text-align:center'>
<tr>
<td>
\image html sample_result_01.png
</td>
<td>
\image html sample_result_02.png
</td>
<td>
\image html sample_result_03.png
</td>
</tr>
<tr>
<td>
Lafortune lobe
</td>
<td>
Blinn lobe
</td>
<td>
Beckmann lobe
</td>
</tr>
</table>
<caption>Fitting the MERL database with nonlinear lobe functions</caption>
| `blue-metallic-paint` | `gold-metallic-paint` | `black-phenolic` |
|---------------------------------------- | ------------------------------------ | -------------------------------------- |
| ![Lafortune lobe](sample_result_01.png) | ![Blinn lobe](sample_result_02.png) | ![Beckmann lobe](sample_result_03.png) |
</center>
<br />
<h2>Download and install</h2>
## Download and install
<h3>Obtain sources</h3>
### Obtain sources
To access the sources of ALTA, you can download the alpha sources:
<center>[http://alta.gforge.inria.fr/downloads/alta-alpha.zip](http://alta.gforge.inria.fr/downloads/alta-alpha.tar.gz)</center>
<center>
http://alta.gforge.inria.fr/downloads/alta-alpha.tar.gz
</center>
<h3>Build</h3>
### Build
You can build ALTA using either [qmake](http://qt-project.org) or [scons](http://www.scons.org). To start, we advise to use scons as it is lightweight and only requires Python to be installed (ALTA uses Python for its high level scripting mechanism). To build using scons, go to the root directory of ALTA and type:
......@@ -91,9 +65,8 @@ You need to provide a platform dependant configuration file. You will find examp
To use qmake, or for a more detailed view of ALTA's building scripts and dependencies, please refer to \ref install.
<br />
<h2>How to use it</h2>
### How to use it
ALTA uses command line programs to perform actions such as BRDF fitting, data conversion, etc. Each program needs plugins to handle its inputs and outputs. We provide three kind of plugins: \ref functions which correspond to BRDF models, \ref datas which correspond to BRDF measurments, and \ref fitters which correspond to fitting algorithms. In the following, we illustrate the use of programs and plugins.
......@@ -112,18 +85,19 @@ To convert this brdf file (in ALTA \ref format), you will need another command:
$ ./build/brdf2brdf --input Kirby.brdf --output Kirby.m --export matlab
\a brdf2brdf converts an ALTA brdf file into another format such as
Matlab m file, C++ code, or BRDF Explorer shader. Note that this tool cannot convert to another ALTA file (e.g. converting a Blinn lobe to a Beckmann distribution).
\a brdf2brdf converts an ALTA brdf file into another format such as Matlab m file, C++ code, or BRDF Explorer shader. Note that this tool cannot convert to another ALTA file (e.g. converting a Blinn lobe to a Beckmann distribution).
You can find more examples of how to use ALTA on the \ref tutorials page.
<br />
<h2>Contribute</h2>
### Contribute
There are many ways in which you can extend ALTA. Please refer to
\ref contribute for more information.
<br />
<center>
<table border="0px">
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