- changed Far::PatchDescriptor size for GREGORY_TRIANGLE to 18
- modified Far::LoopPatchBuilder to construct full quartic Gregory patch
- fixed Far::LoopPatchBuilder bug related to face points near boundaries
- updated Far patch basis evaluation for Gregory and Bezier triangles
- updated Osd patch basis evaluation to match Far
- updated Osd GLSL patch size for Gregory triangle to 18
- modified Osd GLSL Gregory triangle eval and tess settings for quartic
- updated sizes for the Box-spline triangle shader to generate 15 points
- updated conversion of Box-spline from hybrid Bezier to fully quartic
- added resolution of degenerate normal to Bezier triangle evaluation
- updated hybrid Gregory triangle conversion to quartic Bezier
- updated adaptive tessellation of Bezier triangle for quartic boundaries
- Removed Catmark restrictions in the application code and shaders
- Added command line options to specifiy the Scheme for .obj input files
- Added support for Linear end-cap approximation
- Updated GUI labels for end-cap types, i.e. "Linear" instead of "Bilinear"
and "Regular" instead of "BSpline".
- Added new shading color to glViewer for "Patch Depth"
- Disabled screen-space and fractional tessellation by default
- Added GLSL patch shaders for BoxSplineTriangle and GregoryTriangle
patches. These both convert to a hybrid Bezier patch for drawing
similar to the basis conversion done for quad patches.
- Added evaluation of hybrid Bezier triangle patches and
GregoryTriangle patches to the common shader source.
- Added OsdGetPatchIsTriangleRotated() to detect rotated triangles.
- Added OsdInterpolatePatchCoordTriangle() for eval of triangle patches.
- Added boundary point extrapolation for BoxSplineTriangle patches.
- Fixed boundary point extrapolation for unisolated BSpline patches.
- Added tess factor and tess evaluation location computation for
triangle patches.
- Limit surface edge mid points for both quad and triangle patches
are now computed directly.
Moved shader code used for evaluation of legacy gregory patches
to a separate source file along with macros which implement
simple linear face-varying interpolation.
These should not be used for new development, but are provided
for backward compatibility.
- updated the edge-only and edge-corner shapes consistent with Catmark
- moved the existing triangulated cube to loop_cube_asymmetric
- added new loop_cube with symmetric triangulation and limit surface
- added semi-sharp and inf-sharp variations of cube and icosahedron
- added shapes with extra-ordinary interior and boundary vertices
- added shapes with face-varying features similar to Catmark
Previously, the glEvalLimitViewer was hard coded to
use only adaptive refinement, but this change demostrates
how to evaluate patch locations on the linear patches
resulting from a uniform refinement.
By default, in a patch table created from a uniform refinement,
the patch indices for vertex patches account for base level indices,
while the patch indices for face-varying patches do not account for base
level indices.
This change also updates the example to set the patch table factory options
so that both kinds of patch indices account for base level indices.
- stripped StencilTableHandler down to simpler StencilTablePtr wrapper
- replaced old convenience methods with direct conditions in PatchTable
- created new private template methods to simplify PatchTableBuilder
- corrected stencil estimates according to the interpolation mode
- removed the added error checking for the tables provided
- use uniform vertex patches when varying interpolation specified
- added internal option to generate polygons vs patches when uniform
- updated PatchTableFactory to identify patches at a specified level
- renamed internal symbols to remove obsolete references to Adaptive
- updated Catmark builder to use edge-point boundary tags like Loop
- fixed Gregory face point reliance on boundary isolation assumptions
- added comments to PatchBuilder base class to clarify intention and usage
This updates the patch basis evaluation functions in Osd
to match recent changes to far/patchBasis.
This also exposes a common facility for dealing with PatchCoord,
PatchArray, and PatchParam. These are exposed as global functions
operating on struct data, since C++ style class methods are not
supported by all of the Osd shader and kernel execution envirionments.
Changes:
- Merged far/patchBasis.cpp to osd/patchBasisCommon{,Types,Eval}.h
- Exposed PatchCoord, PatchArray, and PatchParam to Osd kernels
- exposed OsdEvaluatePatchBasis and OsdEvaluatePatchBasisNormalized
- Updated CPU, TBB, Omp, CUDA, OpenCL, GLSL, HLSL, and Metal evaluators
- Updated glFVarViewer
- identify the subrange of originating patch faces while assigning handles
- limit queries and memory allocation to the identified subrange of faces
- separate quadtree construction for quad and triangular patches
- added new PatchTable member to indicate uniform (linear) construction
- initialize new member in PatchTableFactory
- use new member to determine result of IsFeatureAdaptive() query
