Hi, I am developing a part of an application that displays additional textual information on billboards. To keep them in the foreground, I use sortkeys and additionally, I move them close to the user, so that they are always on top of all other objects and are selected first. This works very well for now in desktop mode.
But I experience a strange behavior in Cluster Mode (e.g. two side-by-side cameras rendered by two render nodes). When a billboard with a high width is moving horizontally from one camera to another and starts to be visible on the second camera - at least in theory it should be visible - it will not be send to the second cluster node first. Only when a huge part of the billboard should be visible on the camera, it suddenly also appears on the second node. I expect the following fact to be the reason of this problem: The billboard’s vertices are starting in the lower left corner with (0,0) and grow to the right and top. Maybe the clipping algorithm is only using the (0,0) point to determine the affected cameras/cluster nodes. Therefore, the idea is to create a second geometry with the same material that has its starting point in the upper right corner instead of the lower left. This way I draw two billboards with the same size, but the clipping algorithm should send any of them to the cluster nodes and there should always be a visible billboard on all cameras - even in the overlapping areas. This is a bad workaround and increases the number of triangles in the scene. Is there a more straightforward solution? Maybe disabling clipping on the billboards or something similar? Cheers, Maximilian Haupt ------------------------------------------------------------------------------ _______________________________________________ Opensg-users mailing list Opensg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/opensg-users
