- corrected assertion to use face-varying index offset instead of vertex
- added missing face-varying conditional when generateAllLevels set
- factored base-level index offsets into local options for clarity
- added Doxygen comments to describe overall indexing behavior
- modified Gregory patch shader to use existing Bezier patch evaluation
- rewrote Bezier patch evaluation to use intermediate bilinear points
- added detection and resolution of degenerate normal
- eval normal partials no longer uses Weingarten eqns (requires N != 0)
- updated normal partials to use differentiation/projection
Updated MtlComputeEvaluator documentation to be
consistent with the documentation for other compute
evaluator implementations and fixed missing or
incorrect doxygen tags.
Also, updated the overloads for the EvalStencils
and EvalPatches methods to account for 1st and
2nd derivative evaluation.
Updated mtlPtexViewer to account for recent
API changes to Osd::MTLPatchShaderSource and
also fixed a build error when building with
the use of PtexCache disabled.
- Added support for OSX CI builds and tests
- Cleaned up build scripts and moved to $ROOT/build_scripts
- On Linux: moved to trusty distro
- On Linux: enabled OpenMP, TBB and PTex build options
- On Linux: install and setup xvfb with newer mesa drivers to run our GL tests
- On Linux: enable GL tests
Most GL implementations support a maximum of 4 transform
feedback buffer bindings. With the addition of 1st and 2nd
derivative evaluation up to 6 bindings might be required,
i.e. dst, du, dv, duu, duv, dvv.
This change extends the GLXFB Evaluator interface to allow
a client to specialize the evaluator when it is known that
(at least) the 1st derivative and 2nd derivative outputs
are interleaved together into shared buffers.
When this option is used, the maximum number of transform
feedback buffer bindings can be reduced to 3 instead of 6.
Now that Far::LimitStencilTable and Far::PatchTable
support evaluation of 1st and 2nd derivatives the
Osd Evaluator API for evaluating stencils and patches
has been updated to match.
- added Far::PatchTableFactory::Options::generateLegacySharpCornerPatches
- legacy behavior of sharp patches at smooth corners preserved by default
- added corresponding option bit to Osd::MeshBits
- updated examples/glViewer with option
- added detection of shapes without UVs and report fatal error
- fixed command line parsing of shape file arguments and other options
- added missing UVs from shapes/catmark_fan
Read all comments and made corrections to files that aren't part of
OpenSubdiv itself but are packaged with it.
Commandline output of glPtexViewer is affected. Otherwise no functional
changes.
