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Merge pull request #1147 from barfowl/docs_ptex_images
Improved Far patch parameterization documentation for non-quads
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@ -369,15 +369,24 @@ It is important to note that this uv parameterization is the intrinsic
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parameterization within a given patch or coarse face and is distinct
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from any client specified face-varying channel data.
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Patches which result from irregular coarse faces (non-quad faces in the
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Catmark scheme, or non-trianglular faces in the Loop scheme) are offset
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by the one additional level needed to "quadrangulate" or "triangulate"
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the irregular face.
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.. image:: images/far_patchUV.png
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:align: center
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:target: images/far_patchUV.png
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Patches which result from irregular coarse faces (non-quad faces in the
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Catmark scheme) are offset by the one additional level needed to
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"quadrangulate" the irregular face. It is the indices of these offset
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faces that are stored in the PatchParam and used in other classes such
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as the Far::PatchMap. These offset indices can be identified from the
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coarse face using the Far::PtexIndices class when needed.
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+--------------------------------------------+--------------------------------------------+
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| .. image:: images/ptex_coarse.png | .. image:: images/ptex_quadrangulated.png |
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| :align: center | :align: center |
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| :width: 100% | :width: 100% |
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| :target: images/ptex_coarse.png | :target: images/ptex_quadrangulated.png |
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+--------------------------------------------+--------------------------------------------+
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A patch along an interpolated boundary edge is supported by an incomplete
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sets of control vertices. For consistency, patches in the PatchTable always
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have a full set of control vertex indices and the PatchParam Boundary bitmask
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