started implementing fractional tessellation
first version of uv grid tessellator + edge stiching (not yet fully working)
Move FindOpenEXR to cmake
Streamline cmake

- only show options that are needed and that are available
- use OPTION and CMakeDependentOption
- build tutuorial libs only when necessary
- use FindPackageHandleStandardArgs
Merge branch 'devel' of https://github.com/embree/embree into devel
updates
fixes
updates
fractional tessellation pattern is working
stitching for fractional tessellation pattern is working
Merge branch 'devel' of https://github.com/embree/embree into devel
Merge branch 'swoop' into devel
aligning StackItemInt32 structure to 16 bytes and always enabling SSE for StackItemInt32::swap2 function
disabling ansi-aliasing also in debug mode
stitching of fractional tess pattern works
updates
added support for crease_weight = inf in getLimitVertex/Tangent/SecondTangent fcts
new version if stiching algorithm
updates
updates: