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https://github.com/PixarAnimationStudios/OpenSubdiv
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c0907c7bc1
Catmull-Clark Subdivision Surfaces", Niessner et al, Eurographics 2012. This change includes; -topology identification for single-crease patch during adaptive refinement. -patch array population (similar to boundary) -sharpness buffer generation -glsl shader Eval stuffs will be coming.
81 lines
4.0 KiB
C++
81 lines
4.0 KiB
C++
//
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// Copyright 2013 Pixar
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//
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// Licensed under the Apache License, Version 2.0 (the "Apache License")
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// with the following modification; you may not use this file except in
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// compliance with the Apache License and the following modification to it:
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// Section 6. Trademarks. is deleted and replaced with:
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//
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// 6. Trademarks. This License does not grant permission to use the trade
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// names, trademarks, service marks, or product names of the Licensor
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// and its affiliates, except as required to comply with Section 4(c) of
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// the License and to reproduce the content of the NOTICE file.
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//
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// You may obtain a copy of the Apache License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the Apache License with the above modification is
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// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the Apache License for the specific
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// language governing permissions and limitations under the Apache License.
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//
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#include "patchColors.h"
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static float _colors[5][6][4] = {{{1.0f, 1.0f, 1.0f, 1.0f}, // regular
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{1.0f, 0.5f, 0.5f, 1.0f}, // single crease
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{0.8f, 0.0f, 0.0f, 1.0f}, // boundary
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{0.0f, 1.0f, 0.0f, 1.0f}, // corner
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{1.0f, 1.0f, 0.0f, 1.0f}, // gregory
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{1.0f, 0.5f, 0.0f, 1.0f}}, // gregory boundary
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{{0.0f, 1.0f, 1.0f, 1.0f}, // regular pattern 0
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{0.0f, 0.5f, 1.0f, 1.0f}, // regular pattern 1
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{0.0f, 0.5f, 0.5f, 1.0f}, // regular pattern 2
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{0.5f, 0.0f, 1.0f, 1.0f}, // regular pattern 3
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{1.0f, 0.5f, 1.0f, 1.0f}}, // regular pattern 4
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{{1.0f, 0.7f, 0.6f, 1.0f}, // single crease pattern 0
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{1.0f, 0.7f, 0.6f, 1.0f}, // single crease pattern 1
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{1.0f, 0.7f, 0.6f, 1.0f}, // single crease pattern 2
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{1.0f, 0.7f, 0.6f, 1.0f}, // single crease pattern 3
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{1.0f, 0.7f, 0.6f, 1.0f}}, // single crease pattern 4
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{{0.0f, 0.0f, 0.75f, 1.0f}, // boundary pattern 0
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{0.0f, 0.2f, 0.75f, 1.0f}, // boundary pattern 1
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{0.0f, 0.4f, 0.75f, 1.0f}, // boundary pattern 2
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{0.0f, 0.6f, 0.75f, 1.0f}, // boundary pattern 3
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{0.0f, 0.8f, 0.75f, 1.0f}}, // boundary pattern 4
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{{0.25f, 0.25f, 0.25f, 1.0f}, // corner pattern 0
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{0.25f, 0.25f, 0.25f, 1.0f}, // corner pattern 1
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{0.25f, 0.25f, 0.25f, 1.0f}, // corner pattern 2
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{0.25f, 0.25f, 0.25f, 1.0f}, // corner pattern 3
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{0.25f, 0.25f, 0.25f, 1.0f}}}; // corner pattern 4
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typedef OpenSubdiv::Far::PatchTables FarPatchTables;
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float const *
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getAdaptivePatchColor(FarPatchTables::Descriptor const & desc) {
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if (desc.GetPattern()==FarPatchTables::NON_TRANSITION) {
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return _colors[0][(int)(desc.GetType()-FarPatchTables::REGULAR)];
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} else {
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return _colors[(int)(desc.GetType()-FarPatchTables::REGULAR)+1][(int)desc.GetPattern()-1];
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}
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}
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float const *
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getAdaptivePatchColor(OpenSubdiv::Osd::DrawContext::PatchDescriptor const & desc) {
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if (desc.GetPattern()==FarPatchTables::NON_TRANSITION) {
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return _colors[0][(int)(desc.GetType()-FarPatchTables::REGULAR)];
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} else {
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return _colors[(int)(desc.GetType()-FarPatchTables::REGULAR)+1][(int)desc.GetPattern()-1];
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}
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}
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