Hello OIIO folk! We've had a side project to look at OIIO and it's texture sampling abilities as an alternate to our in-house library. It's been kind of hard to compare them as the algorithms are different, but I will share some results when we can bang them into a reasonable form.
Our in-house library supports two in-house formats. One is called "map" and it's really nothing special - a tiled mip-map format which supports 8/16-bt ints and 16/32-bit floats. I don't imagine this has any real value over what OIIO already supports. We also have a format called "multimap" which stores a dictionary of named maps. We like this for models where many texture maps are used to cover the model and having one file instead of many is easier to deal with and actually reduces I/O load quite a bit. Are there good open alternatives for this? Does anyone else do something similar? * EXR2 has this ability, but it's pretty new and is only HDR. * I think TIFF has this ability (because it does everything), but I'm not sure how well it's supported. * It's been floated that we could use a PTex file in this manner even if we end up sampling the images using UVs. Any recommendations? --jono
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