I'm sorry may be I'm too dull but I did not understand the plan for the GSOC of Matthieu. Igor told us a while ago that athens offers transformation matrix that could really speed up Roassal.
The idea is indeed to replace the way coordinate are computed in Roassal by using Matrixes. And Athens will play an important role. It may speed up the visualization.
Now is there a plan to use that in Roassal? If Roassal should stay platform independent then there should be a solution at its architectural level to have one library for Athens and one for the rest.
Yes there is a plan, and the idea is that Matthieu will work on it as soon as possible. Having Athens matrixes in Roassal has nothing to do with Roassal being platform independent.
In addition I do not understand how Roassal can work fast on amber while using Athens without again using the athens infrastructure.
For Amber, we still unsure about the strategy to adopt here.
Alexandre