Darkmiss wrote:Hello Grantthere ssem to be lots of different Jupiter textures and venus textures and hardly any match up.
Paul,
This is something that I asked about in another thread too. The problem with textures like Venus and Jupiter is that there is no Central Meridian definition for use by the Celestia community. In other words, planets having a fixed reference point on the ground can be set up so that the Central Meridian (0 degrees longitude) is defined as being in the exact center of the image.
With Jupiter and Venus, however, there is no FIXED reference point which can be used to identify a Central Meridian location. Thus, you're going to find textures which define 0 degrees longitude at almost *any* place on the map.
As Grant suggested to me in another thread, the only thing we can really do to correct textures for planets like Venus and Jupiter, is to compare any new textures with the original Celestia textures, and then move the Central Meridian location so that it matches up with the location *currently* used by Celestia.
Have I gotten that right, Grant?
At any rate, that's my understanding of the problem. Not too many texture makers are going to go to that much trouble though. It takes a bit of work to first determine where the Central Meridian is located in the Celestia image, and then to move it to the same location in any new texture image.
Hope that helps.
Take care, Bob