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i have planet texture issue with your mod. #2447
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Sorry, I have no idea what you are talking about. Other than the fact that the two pictures show the Moon in different orientations and lightning (which makes the comparison hard) I don't see anything odd regarding the normal map or the rims. You'll have to be more explicit about what you think is wrong. |
Thanks for the clarification. Yes, I see the difference now, although I have no idea where it comes from. This will need to be investigated. |
From your github username I presume that you are using VaNnadin's 16K RSS texture pack. I believe that the problem is not specific to Principia, although Principia may make it more visible. I believe that the problem comes from some glitch in the normal maps. All the pictures below are without Principia. The following is a polar view of the Moon on 1951-01-01 (the origin of RSS time) with your texture pack. The lunar terminator looks good, but if you look at it carefully, you'll notice that the craters are lit from the right whereas the Sun is at the bottom of the picture. This is a bit fishy: After warping for a while, we obtain the following on 1951-03-17. Note how quite a few craters on the dark side are lit. Also note how the bottom half of the terminator is completely lacking in crater lightning, and how the craters at the top of the picture look like they are lit from the top, while the Sun is on the right: Let's compare this with the vanilla RSS textures. Here is an image on 1951-01-01. The craters are properly lit from the bottom: Now here is an image on 1951-03-17. All the craters are properly lit from the right, and there is very little light on the dark side of the Moon: I have no idea what is the root cause, but note that the normal maps are properly aligned with the craters (i.e., they attempt at generating highlight and shadows at the right place) but they catch light in the wrong direction. Could this be due to a swap between x and y? |
thank you for detailed explanation. i tried every normal map solution. single channel, two channel, invert x, invert y, swap x and y.. but well.. not worked. aaaaaah ok i figured out. |
i have no idea why this happened, but when i use principia, i always have normal map texture issue.
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this one is moon with principia and
this one is moon without principia. can you notice difference between two rims?
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