   Camera aligned water mesh - CryEngine 2 water mesh !
  Does anyone know how the camera aligned water mesh solution in cry engine 2 it's been implemented ? I couldn't find any previous thread on this specific topic, a part the water thread by Yann, but I don't think there was a post specificly on the camera aligned water mesh.To my understanding it should be a top down projection as stated in the paper Finding Next Gen in CryEngine 2. However I tried to perform an Orthographic top down projection of the mesh and then try to move the mesh through the camera position with bad results. It's not explained in depth how to achieve this top down projection in the paper. Even if my best guess is that it should be an ortographic top down that is then transformed by the viewProjection matrix? (maybe adding the camera position to drag it around the world ? )Thanks in advance for any reply :)   
  My guess is that they´re just projecting the sea grid from the camera on the xz plane (assuming y-up), just like old school projected polygon shadows were made. Then they perturb the vertices to create waves and stuff. I could be wrong, though.   ;  But the water mesh is already in the xz plane and still the perspective projection will affect it giving you less resolution near the observer ... !  or maybe I'm missing your point ... Someone else any idea ?   ;Quote:Original post by MegaPixelBut the water mesh is already in the xz plane and still the perspective projection will affect it giving you less resolution near the observer ... !  or maybe I'm missing your point ... Someone else any idea ?Is this paper on real-time water rendering using a projective grid any use?   ;  Or perhaps this paper from Crytek. ;)http://www.crytek.com/fileadmin/user_upload/inside/presentations/gdc2008/GDC08_SousaT_CrysisEffects.ppt   ;Quote:Original post by dave jQuote:Original post by MegaPixelBut the water mesh is already in the xz plane and still the perspective projection will affect it giving you less resolution near the observer ... !  or maybe I'm missing your point ... Someone else any idea ?Is this paper on real-time water rendering using a projective grid any use?That paper there is on the projected grid not on the camera aligned one !   ;Quote:Original post by jlipponeOr perhaps this paper from Crytek. ;)http://www.crytek.com/fileadmin/user_upload/inside/presentations/gdc2008/GDC08_SousaT_CrysisEffects.pptThank you I'll have a look at that ! Hope that the explanation will be deeper than Finding Next Gen In CryEngine2.   ;Quote:Original post by MegaPixelBut the water mesh is already in the xz plane and still the perspective projection will affect it giving you less resolution near the observer ... !  or maybe I'm missing your point ... Someone else any idea ?What i say is roughly described in the paper dave j posted. And it would give you better resolution near the observer, and less resolution far away. I read the Finding Next Gen in CryEngine 2 paper and they tried this method first, but then used the top-down projection you described. My bad, i though they were using simple screen space projection.