Yep, re-dumping now with TMEM "on" would be good as you are just starting out.
8x average is good. Of coarse use your judgment on texture size for how each one is used in game. ie: If it is a large/stretched wall or floor make it big to get the detail you want. But, note this: Look out for too much fine detail of large shade differences. What I mean is...take grass for example...say there's light green and dark green/black pixels right next to each other in the texture. When at a medium to far distance or angle to the camera it will look worse because of too much detail. (ie: Grainy) What I do to combat this is to asses the distance in game that a texture becomes too small and/or is at a great enough angle (like grass on the ground) that it starts to pixelate randomly/become grainy. Then I go back onto PS and set Gaussian Blur to a value of "2" and repeat it (Ctrl-F) 1 to 10 times for a 512x512 texture so that the colors get blurred edges just enough that the texture looks good near and far in game. The key is to get it so that it looks great up close but also pushes the threshold of over detail pixelation back away from the camera enough that it becomes less noticeable/acceptable.
For instance, during the ending scene of the grassy hill/grave site for Carrie (and Reinhardt) in Castlevania LOD I have a grass texture at 256x256 right next to a dirt road texture that is at 2048x2048. Why? Because it looks best that way. Make sense? Not really but after 10's of tries this is what came out looking the best because...two reasons:
1. The camera gets VERY close to the dirt road and the grass is always far from the camera.
2. The dirt road has very little color variation but the grass has very light and very dark greens. Making the grass look better at a lower resolution and blurrier.
As for your dump. First thing you should do is make absolutely sure you have the best settings in MRV before you dump anything and not change settings after you begin dumping. If you already need to and you have just started out...I would delete your dump folder and start again after you have discovered the best settings. You could ask here for the best settings to save yourself some time. I bet Djipi knows.
As for a place to put your hires textures...read this, post 301:
http://www.emutalk.net/showthread.php?t=26442&page=31
And for how to organize them, Download my WIP texture pack for LOD and study how I organized the textures into folders here:
http://www.emutalk.net/showthread.php?t=43535
I also have created a tutorial thread at HH that you may get some good ideas from. It is still new and very incomplete but your welcome to check it out. Once it is better I will be mirroring it here at ET as well:
Making Hi-res Textures...community tutorial thread
