We present a combination of techniques to render the aurora borealis in real time on a modern graphics processing unit (GPU). Unlike the general 3D volume rendering problem, an auroral display is emissive and can be factored into a height-dependent energy deposition function, and a 2D electron flux map. We also present a GPU-friendly atmosphere model, which includes an integrable analytic approximation of the atmosphere's density along a ray. Together, these techniques enable a modern consumer graphics card to realistically render the aurora at 20-80fps, from any point of view either inside or outside the atmosphere.
CITATION STYLE
Lawlor, O. S., & Genetti, J. (2011). Interactive volume rendering aurora on the GPU. In 19th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision, WSCG 2011 - In Co-operation with EUROGRAPHICS, Full Papers Proceedings (pp. 25–32).
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