I may be on a different page here, sorry. With “quality” I was hearing a choice about how detailed one desires the texture map(s) to be, i.e. resolution (but also max number of those maps). The size and number of maps is relevant to texture quality, but then if I’m hearing you right about how texel size also figures in, you’re wanting to know how to set texel size in relation to resolution of the source data in order to optimize for textures. No? I thought Optimal texel size is what you want if gleaning everything from the source data is what’s important. Increasing texel size I would think would result in going the same direction as downscaling images.
“Since this is very often an alignment problem, it would be helpful to see where you stand in respect to your images”
I’m not following you. How is alignment relevant here?