gzotti
commented
6 years ago Old blueprint. Most has been done by 0.16, only alien atmospheres are missing.
Open alex-w opened 6 years ago
gzotti
commented
6 years ago Old blueprint. Most has been done by 0.16, only alien atmospheres are missing.
Original description: https://blueprints.launchpad.net/stellarium/+spec/improved-planet-rendering
The current rendering is very basic: planets are ellipsoids mapped with a rectangular texture, lightning is very basic (material parameters are the same for each planets), no shadow or bump mapping is performed, no atmosphere is rendered when a planet is seen from outside its atmosphere.
The goal is to improve the code related to 3D rendering so that the level of realism is improved. Main features would be:
During the last refactoring the code where all these operations appear was grouped in a single place, thus making coding easier. The main method to modify is Planet::draw3dModel(...)
Skills needed: C++, OpenGL, geometry, Basic Astronomy Difficulty: from average to difficult depending on the subtask
Whiteboard This seems to depend on getting projection off the CPU and onto the GPU. - Rob Not really, most of these tasks are not directly related with the projection code. -Fab Bumpmapping on the CPU? I have depth buffering ready to use when you want it, to enable moon orbits and lay the groundwork for more 3d work. Novgorod told me they have arbitrary 3d objects implemented already, maybe they could contribute their code. -Rob Yeah it would be nice if you could provide some cleaned patches adding the features in the SVN trunk! -Fab
In fact future Qt release will comme with everything needed to load 3D models, this could be a good opportunity to do that.
Article "Real Time Atmosphere Rendering for the Space Simulators" by Radovan Josth - http://www.cg.tuwien.ac.at/hostings/cescg/CESCG-2005/papers/Brno-Josth-Radovan/index.html - Alex