Update index.md

index.md

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 **NEW**: The project now implements the paper ["Weighted Laplacian Smoothing for Surface Reconstruction of Particle-based Fluids" (Löschner, Böttcher, Jeske, Bender; 2023)](https://animation.rwth-aachen.de/publication/0583/). 
 It proposes a fast smoothing approach to avoid the typical bumpiness of the surfaces reconstructed from SPH simulations while preventing loss of volume for splashes and droplets that occurs with simple, non-speaclized smoothing methods.
-The images below show a rendering of a typical surface reconstruction (on the right) with visible bumps due to the SPH particles compared to the same surface reconstruction with weighted smoothing applied (on the left):
+The images below show a rendering of a typical surface reconstruction (on the left) with visible bumps due to the SPH particles compared to the same surface reconstruction with weighted smoothing applied (on the right):
 
 <p align="center">
 <img src="assets/example_unsmoothed.jpg" alt="Image of the original surface reconstruction without smoothing (bumpy & rough)" width="48%"> <img src="assets/example_smoothed.jpg" alt="Image of the surface reconstruction with weighted smoothing applied (nice & smooth)" width="48%">