Larry Gritz wrote:
Florian Kainz wrote:
One problem that needs to be solved is how the mapping between
floating-point numbers and integers gets encoded.
How does it work for the currently-supported int32? I'd be happy with
something analogous, only fewer bits.
For 32-bit integers the numerical value is approximated. For example,
3248 becomes 3240.0, and 1.7 becomes 2. For 32-bit integers this is
ok, because the integers are generally used as identifiers ("what object
is visible in this pixel?"), not as numerical values.
This doesn't seem very useful for 8-bit integers. Most of the time you'd
want 0 through 255 to represent a 0.0 to 1.0 range, optionally with a
gamma curve.
_______________________________________________
Openexr-devel mailing list
Openexr-devel@nongnu.org
http://lists.nongnu.org/mailman/listinfo/openexr-devel
