mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
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124 lines
3.7 KiB
C++
124 lines
3.7 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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#ifndef SHAPE_UTILS_H
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#define SHAPE_UTILS_H
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#include <string>
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#include <vector>
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#include <map>
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//------------------------------------------------------------------------------
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enum Scheme {
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kBilinear=0,
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kCatmark,
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kLoop
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};
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//------------------------------------------------------------------------------
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struct Shape {
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// full(er) spec here: http://paulbourke.net/dataformats/mtl/
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struct material {
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material();
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std::string name;
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float ka[3], // ambient
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kd[3], // diffuse
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ks[3], // specular
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ns, // specular exponent
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ni, // optical density (1.0=no refraction, glass=1.5)
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sharpness, // reflection sharpness
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tf[3], // transimission filter
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d; // dissolve factor (1.0 = opaque)
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int illum;
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};
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struct tag {
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static tag * parseTag(char const * stream);
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std::string genTag() const;
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std::string name;
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std::vector<int> intargs;
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std::vector<float> floatargs;
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std::vector<std::string> stringargs;
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};
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static Shape * parseObj(char const * Shapestr, Scheme schme,
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bool isLeftHanded=false, int axis=1, bool parsemtl=false);
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void parseMtllib(char const * stream);
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std::string genShape(char const * name) const;
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std::string genObj() const;
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std::string genRIB() const;
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Shape() : scheme(kCatmark), isLeftHanded(false) { }
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~Shape();
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int GetNumVertices() const { return (int)verts.size()/3; }
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int GetNumFaces() const { return (int)nvertsPerFace.size(); }
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bool HasUV() const { return ! (uvs.empty() || faceuvs.empty()); }
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int GetFVarWidth() const { return HasUV() ? 2 : 0; }
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std::vector<float> verts;
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std::vector<float> uvs;
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std::vector<float> normals;
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std::vector<int> nvertsPerFace;
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std::vector<int> faceverts;
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std::vector<int> faceuvs;
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std::vector<int> facenormals;
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std::vector<tag *> tags;
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Scheme scheme;
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bool isLeftHanded;
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char FindMaterial(char const * name) {
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for (int i=0; i<(int)mtls.size(); ++i) {
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if (mtls[i]->name==name) {
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return i;
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}
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}
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return -1;
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}
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std::string mtllib;
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std::vector<unsigned short> mtlbind;
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std::vector<material *> mtls;
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};
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//------------------------------------------------------------------------------
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#endif /* SHAPE_UTILS_H */
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