## On this page # Test013 Last update: 16.07.2025 Legends This example demonstrates the use of legends. Several legends are created demonstrating different options to the legend object. <script src="/ansys/nexus/viewer-loader.js"></script> /\* \* Copyright 2018-2021 ANSYS, Inc. Unauthorized use, distribution, or duplication is prohibited. \* \* Restricted Rights Legend \* \* Use, duplication, or disclosure of this \* software and its documentation by the \* Government is subject to restrictions as \* set forth in subdivision \[(b)(3)(ii)\] of \* the Rights in Technical Data and Computer \* Software clause at 52.227-7013. \*/ \#include <vector> \#include <cmath> \#ifdef \_WIN32 \#include <codecvt> \#endif \#include "GLTFWriter.h" \#include "test.h" using namespace ANSYS::Nexus; namespace { \#ifdef \_WIN32 std::string ConvertToUtf8String(const std::wstring& wstr) { std::wstring_convert<std::codecvt_utf8<wchar_t>> myconv; return myconv.to_bytes(wstr); } \#endif }; // Legends TESTFUNC(Legends) { GLTFWriter::GLTF *gltf = [GLTFWriter::GLTF::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#ab7ba6d114c76cb60baf41aa6f13e9494)("MyApp", "1.0", functionName.c_str(), type); if (!gltf) throw std::runtime_error("Can't create GLTF"); // SCENE \#ifdef \_WIN32 GLTFWriter::Scene *scene = [GLTFWriter::Scene::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_scene.xhtml#aac8bcb85d4361abba99053b3c56eb08b)(gltf, ConvertToUtf8String(L"ԎҿșϯϨҁęɳę").c_str(), "", 0, [GLTFWriter::Scene::BT\_TB](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_scene.xhtml#ac17baf491cdba3613b0aa39719a3dbd8a0e9df8d9774401657f9d7aad4e18728f), 0.42F, 0.55F, 0.871F, 1, 1, 1); \#else GLTFWriter::Scene *scene = [GLTFWriter::Scene::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_scene.xhtml#aac8bcb85d4361abba99053b3c56eb08b)(gltf, "Testscene", "m", 1.0F, [GLTFWriter::Scene::BT\_TB](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_scene.xhtml#ac17baf491cdba3613b0aa39719a3dbd8a0e9df8d9774401657f9d7aad4e18728f), 0.42F, 0.55F, 0.871F, 1, 1, 1); \#endif if (!scene) { [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create scene"); } // CAMERA { // CAMERA GLTFWriter::Camera *camera = [GLTFWriter::Camera::CreateOrthographic](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_camera.xhtml#acab0b8344a7bb8b65c9690d221705377)(gltf); // CAMERA NODE std::vector<double> mat(16); mat[0] = 0; mat[1] = 1; mat[2] = 0; mat[3] = 0; mat[4] = 0; mat[5] = 0; mat[6] = 1; mat[7] = 0; mat[8] = 1; mat[9] = 0; mat[10] = 0; mat[11] = 0; mat[12] = 0; mat[13] = 0; mat[14] = 0; mat[15] = 1; GLTFWriter::Node *cameraNode = [GLTFWriter::Node::CreateCamera](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#af6c4767cc8271d9d39816d278538197a)(gltf, camera, "TestCamera", &mat[0]); scene->SetCamera(cameraNode); } // banded texture { float mn = 1.5; float mx = 2.5; float range = mx - mn; // TEXTURE std::vector<unsigned char> colors; colors.push_back(0); colors.push_back(0); colors.push_back(255); // blue colors.push_back(0); colors.push_back(255); colors.push_back(255); // cyan colors.push_back(0); colors.push_back(255); colors.push_back(0); // green colors.push_back(255); colors.push_back(255); colors.push_back(0); // yellow colors.push_back(255); colors.push_back(0); colors.push_back(0); // red GLTFWriter::Texture *bandedTexture = [GLTFWriter::Texture::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_texture.xhtml#a3d15e0e6ad83cd7d50bb81ce2d0f30c8)(gltf, [GLTFWriter::Texture::TF\_RGB](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_texture.xhtml#aba6db4f52b9f0a1a866bce302b6d8964aaa8ea9a0e6b83932a6a882b1655e8e59), (unsigned int)colors.size() / 3, &colors[0], false); // generate vertices, and texture coordinates for a ball std::vector<float> vertices; std::vector<unsigned int> lines; std::vector<unsigned int> triangles; GLTFWriter::Test::MakeSphere(0, -1, 0, 0.5, 64, vertices, lines, triangles); const unsigned int numVertices = (unsigned int)vertices.size() / 3; const unsigned int numLines = (unsigned int)lines.size() / 2; const unsigned int numTriangles = (unsigned int)triangles.size() / 3; std::vector<float> textureCoords(numVertices); for (unsigned int i = 0; i < numVertices; ++i) textureCoords[i] = (vertices[3 * i + 2] + 0.5F) * range + mn; // coordinates go from mn to mx // NODE { // LEGEND // make this banded colors std::vector<float> valueLocation; //valueLocation.push\_back(1, mx); GLTFWriter::Legend *legend = [GLTFWriter::Legend::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_legend.xhtml#a4538d9a6db05a532b33fccad579ec90e)(gltf, [GLTFWriter::Legend::LO\_VERTICAL](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_legend.xhtml#a339aacb19b79675bd3bc9a903349d933ae89817b11c6c1230e3a9b56d04d402fa), 0.75, bandedTexture, mn, mx, [GLTFWriter::Legend::LA\_X\_YCENTER](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_legend.xhtml#a96892dc857e05a292528ddc6c29a6ea2a78c88258f5d9a3a003e6bb1d49446c3b), \#ifdef _WIN32 ConvertToUtf8String(L"Z Ƥṏᴤΐṱϊӧת\\nBanded").c_str(), \#else "Z Position\\nBanded", \#endif "m", "This is an example\\nbanded legend\\nX, Y Center", 6, 0, true, false, 0.05F, 0, 0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F, 0.25F); // BUFFER - combine attributes into a single buffer GLTFWriter::Buffer *buffer = [GLTFWriter::Buffer::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_buffer.xhtml#ab3810e93f82a461a858df95e572b221d)(gltf); if (!buffer) { [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create buffer"); } // NODE GLTFWriter::Node *node = [GLTFWriter::Node::CreateMesh](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#a4dd14791b2b9e65c115aa7a9e3f340e8)(gltf, "Banded"); if (!node || !scene->AppendMesh(node)) { [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create mesh node"); } // LEGEND NODE \#ifdef \_WIN32 GLTFWriter::Node *legendNode = [GLTFWriter::Node::CreateLegend](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#a978541706f278234a1267f0bd2010ab7)(gltf, legend, ConvertToUtf8String(L"Ḷḙḡḗṋḍ").c_str()); \#else GLTFWriter::Node *legendNode = [GLTFWriter::Node::CreateLegend](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#a978541706f278234a1267f0bd2010ab7)(gltf, legend, "Legend"); \#endif node->AppendChild(legendNode); // MESH NODE GLTFWriter::Node *meshNode = [GLTFWriter::Node::CreateMesh](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#a4dd14791b2b9e65c115aa7a9e3f340e8)(gltf, "Mesh"); if (!meshNode || !node->AppendChild(meshNode)) { [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create mesh node"); } // MESH GLTFWriter::Mesh *mesh = [GLTFWriter::Mesh::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_mesh.xhtml#a9f7803b1b1eb72e4005665ca33f42788)(gltf); if (!mesh || !meshNode->AppendMesh(mesh)) { [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create mesh"); } // TECHNIQUE GLTFWriter::Technique *technique = [GLTFWriter::Technique::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_technique.xhtml#a13382537cb3622195e7cf0bf33e202c2)(gltf); if (!technique || // TECHNIQUE STATES !technique->AppendState([GLTFWriter::State::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_state.xhtml#a8cefd28a7477d1ab51809a51b21b8019)(gltf, [GLTFWriter::State::ST\_DEPTHTESTENABLE](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_state.xhtml#affd67e37265c1883f760fd0c368ba718a5a304a50ef0c9a98124f4c998ec47f3b), 1))) { [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create technique"); } // MATERIAL GLTFWriter::Material *material = [GLTFWriter::Material::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_material.xhtml#a683cf8ee4a674e8e7a7b01c97797eecc)(gltf, technique); if (!material || // MATERIAL UNIFORM VALUES !material->AppendValue([GLTFWriter::Value::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_value.xhtml#aee78dae95614f843f10d5e19f9d55d61)(gltf, "texture0", bandedTexture->GetID()))) { // texture0 name is auto-generated from Attribute TEXCOORD0 [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create material"); } // repack unsigned int indices into multiple sets of unsigned short indices GLTFWriter::Utils::Repack *repack = [GLTFWriter::Utils::Repack::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_utils_1_1_repack.xhtml#a81856527dc12542540dce2f517b5eec4)(numTriangles, 3, &triangles[0]); if (!repack) { [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create repack"); } for (unsigned int i = 0; i < repack->NumPacks(); ++i) { const float *packedData; unsigned int numAttributes = repack->NumAttributes(i); // POSITION ATTRIBUTE packedData = repack->ConstructRepackAttribute(&triangles[0], 3, &vertices[0], i); GLTFWriter::Attribute *vertex = [GLTFWriter::Attribute::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#a74b97d3bfc2585fe4d67a663a79abfa1)(gltf, "POSITION", [GLTFWriter::Attribute::AT\_FLOAT\_VEC3](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#aa787c451052ac912fd9af91c4ff54ddba0e6049e71b78dccf0f7f9791abe541c3), numAttributes, packedData, buffer); // TEXCOORD ATTRIBUTE packedData = repack->ConstructRepackAttribute(&triangles[0], 1, &textureCoords[0], i); GLTFWriter::Attribute *texture = [GLTFWriter::Attribute::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#a74b97d3bfc2585fe4d67a663a79abfa1)(gltf, "TEXCOORD0", [GLTFWriter::Attribute::AT\_FLOAT](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#aa787c451052ac912fd9af91c4ff54ddba6d124c894e5bdc043eeebec0f852e857), numAttributes, packedData, buffer); // INDICES unsigned int numIndices = 3U * repack->NumElements(i); const unsigned short *packedIndex = repack->ConstructRepackIndex(&triangles[0], i); GLTFWriter::Index *index = [GLTFWriter::Index::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_index.xhtml#ab4c4a14b880b4247257672358ad7ccfc)(gltf, numIndices, packedIndex, buffer); // PRIMITIVE GLTFWriter::Primitive *primitive = [GLTFWriter::Primitive::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_primitive.xhtml#a11dce37f59247e26bd6973ba5d7fefeb)(gltf, [GLTFWriter::Primitive::PT\_TRIANGLES](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_primitive.xhtml#a062b429c87d913e5adda11b381414c6ea85ba263ad510a4b423c5e1452fd5ca7d), material, index); if (!primitive || !mesh->AppendPrimitive(primitive) || !primitive->AppendAttribute(vertex) || !primitive->AppendAttribute(texture)) { [GLTFWriter::Utils::Repack::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_utils_1_1_repack.xhtml#ae380a98f35dd3c7dc8cd3cb87e56e9df)(repack); [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create primitive"); } } [GLTFWriter::Utils::Repack::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_utils_1_1_repack.xhtml#ae380a98f35dd3c7dc8cd3cb87e56e9df)(repack); } } // gradient texture { float mn = -0.5; float mx = 0.5; float range = mx - mn; // TEXTURE std::vector<unsigned char> colors; colors.push_back(0); colors.push_back(0); colors.push_back(255); // blue colors.push_back(0); colors.push_back(255); colors.push_back(255); // cyan colors.push_back(0); colors.push_back(255); colors.push_back(0); // green colors.push_back(255); colors.push_back(255); colors.push_back(0); // yellow colors.push_back(255); colors.push_back(0); colors.push_back(0); // red GLTFWriter::Texture *smoothTexture = [GLTFWriter::Texture::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_texture.xhtml#a3d15e0e6ad83cd7d50bb81ce2d0f30c8)(gltf, [GLTFWriter::Texture::TF\_RGB](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_texture.xhtml#aba6db4f52b9f0a1a866bce302b6d8964aaa8ea9a0e6b83932a6a882b1655e8e59), (unsigned int)colors.size() / 3, &colors[0]); // generate vertices, and texture coordinates for a ball std::vector<float> vertices; std::vector<unsigned int> lines; std::vector<unsigned int> triangles; GLTFWriter::Test::MakeSphere(0, 1, 0, 0.5, 64, vertices, lines, triangles); const unsigned int numVertices = (unsigned int)vertices.size() / 3; const unsigned int numLines = (unsigned int)lines.size() / 2; const unsigned int numTriangles = (unsigned int)triangles.size() / 3; std::vector<float> textureCoords(numVertices); for (unsigned int i = 0; i < numVertices; ++i) textureCoords[i] = (vertices[3 * i + 2] + 0.5F) * range + mn; // coordinates go from mn to mx // NODE { // LEGEND // make this gradient colors std::vector<float> valueLocation; //valueLocation.push\_back(1, mx); GLTFWriter::Legend *legend = [GLTFWriter::Legend::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_legend.xhtml#a4538d9a6db05a532b33fccad579ec90e)(gltf, [GLTFWriter::Legend::LO\_VERTICAL](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_legend.xhtml#a339aacb19b79675bd3bc9a903349d933ae89817b11c6c1230e3a9b56d04d402fa), 0.333F, smoothTexture, mn, mx, [GLTFWriter::Legend::LA\_XRIGHT\_YCENTER](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_legend.xhtml#a96892dc857e05a292528ddc6c29a6ea2a74c6997c4d92c6b6c95e67dbe827fe32), \#ifdef _WIN32 ConvertToUtf8String(L"Z Ƥṏᴤΐṱϊӧת\\nSmooth").c_str(), \#else "Z Position\\nSmooth", \#endif "m", "This is an example\\ngradient legend\\nX Right, Y Center", 0, 0, false, false); // BUFFER - combine attributes into a single buffer GLTFWriter::Buffer *buffer = [GLTFWriter::Buffer::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_buffer.xhtml#ab3810e93f82a461a858df95e572b221d)(gltf); // NODE GLTFWriter::Node *node = [GLTFWriter::Node::CreateMesh](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#a4dd14791b2b9e65c115aa7a9e3f340e8)(gltf, "Linear"); if (!node || !scene->AppendMesh(node)) { [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create mesh node"); } // LEGEND NODE \#ifdef \_WIN32 GLTFWriter::Node *legendNode = [GLTFWriter::Node::CreateLegend](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#a978541706f278234a1267f0bd2010ab7)(gltf, legend, ConvertToUtf8String(L"Ḷḙḡḗṋḍ").c_str()); \#else GLTFWriter::Node *legendNode = [GLTFWriter::Node::CreateLegend](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#a978541706f278234a1267f0bd2010ab7)(gltf, legend, "Legend"); \#endif node->AppendChild(legendNode); // MESH NODE GLTFWriter::Node *meshNode = [GLTFWriter::Node::CreateMesh](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#a4dd14791b2b9e65c115aa7a9e3f340e8)(gltf, "Mesh"); if (!meshNode || !node->AppendChild(meshNode)) { [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create mesh node"); } // MESH GLTFWriter::Mesh *mesh = [GLTFWriter::Mesh::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_mesh.xhtml#a9f7803b1b1eb72e4005665ca33f42788)(gltf); if (!mesh || !meshNode->AppendMesh(mesh)) { [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create mesh"); } // TECHNIQUE GLTFWriter::Technique *technique = [GLTFWriter::Technique::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_technique.xhtml#a13382537cb3622195e7cf0bf33e202c2)(gltf); if (!technique || // TECHNIQUE STATES !technique->AppendState([GLTFWriter::State::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_state.xhtml#a8cefd28a7477d1ab51809a51b21b8019)(gltf, [GLTFWriter::State::ST\_DEPTHTESTENABLE](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_state.xhtml#affd67e37265c1883f760fd0c368ba718a5a304a50ef0c9a98124f4c998ec47f3b), 1))) { [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create technique"); } // MATERIAL GLTFWriter::Material *material = [GLTFWriter::Material::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_material.xhtml#a683cf8ee4a674e8e7a7b01c97797eecc)(gltf, technique); if (!material || // MATERIAL UNIFORM VALUES !material->AppendValue([GLTFWriter::Value::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_value.xhtml#aee78dae95614f843f10d5e19f9d55d61)(gltf, "texture0", smoothTexture->GetID()))) { // texture0 name is auto-generated from Attribute TEXCOORD0 [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create material"); } // repack unsigned int indices into multiple sets of unsigned short indices GLTFWriter::Utils::Repack *repack = [GLTFWriter::Utils::Repack::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_utils_1_1_repack.xhtml#a81856527dc12542540dce2f517b5eec4)(numTriangles, 3, &triangles[0]); if (!repack) { [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create repack"); } for (unsigned int i = 0; i < repack->NumPacks(); ++i) { const float *packedData; unsigned int numAttributes = repack->NumAttributes(i); // POSITION ATTRIBUTE packedData = repack->ConstructRepackAttribute(&triangles[0], 3, &vertices[0], i); GLTFWriter::Attribute *vertex = [GLTFWriter::Attribute::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#a74b97d3bfc2585fe4d67a663a79abfa1)(gltf, "POSITION", [GLTFWriter::Attribute::AT\_FLOAT\_VEC3](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#aa787c451052ac912fd9af91c4ff54ddba0e6049e71b78dccf0f7f9791abe541c3), numAttributes, packedData, buffer); // TEXCOORD ATTRIBUTE packedData = repack->ConstructRepackAttribute(&triangles[0], 1, &textureCoords[0], i); GLTFWriter::Attribute *texture = [GLTFWriter::Attribute::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#a74b97d3bfc2585fe4d67a663a79abfa1)(gltf, "TEXCOORD0", [GLTFWriter::Attribute::AT\_FLOAT](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#aa787c451052ac912fd9af91c4ff54ddba6d124c894e5bdc043eeebec0f852e857), numAttributes, packedData, buffer); // INDICES unsigned int numIndices = 3U * repack->NumElements(i); const unsigned short *packedIndex = repack->ConstructRepackIndex(&triangles[0], i); GLTFWriter::Index *index = [GLTFWriter::Index::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_index.xhtml#ab4c4a14b880b4247257672358ad7ccfc)(gltf, numIndices, packedIndex, buffer); // PRIMITIVE GLTFWriter::Primitive *primitive = [GLTFWriter::Primitive::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_primitive.xhtml#a11dce37f59247e26bd6973ba5d7fefeb)(gltf, [GLTFWriter::Primitive::PT\_TRIANGLES](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_primitive.xhtml#a062b429c87d913e5adda11b381414c6ea85ba263ad510a4b423c5e1452fd5ca7d), material, index); if (!primitive || !mesh->AppendPrimitive(primitive) || !primitive->AppendAttribute(vertex) || !primitive->AppendAttribute(texture)) { [GLTFWriter::Utils::Repack::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_utils_1_1_repack.xhtml#ae380a98f35dd3c7dc8cd3cb87e56e9df)(repack); [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create primitive"); } } [GLTFWriter::Utils::Repack::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_utils_1_1_repack.xhtml#ae380a98f35dd3c7dc8cd3cb87e56e9df)(repack); } } // banded log texture { float mn = 10; float mx = 100; float range = mx - mn; // TEXTURE std::vector<unsigned char> colors; colors.push_back(0); colors.push_back(0); colors.push_back(255); // blue colors.push_back(0); colors.push_back(255); colors.push_back(255); // cyan colors.push_back(0); colors.push_back(255); colors.push_back(0); // green colors.push_back(255); colors.push_back(255); colors.push_back(0); // yellow colors.push_back(255); colors.push_back(0); colors.push_back(0); // red std::vector<float> bandLocations; // fractions from 0 to 1 bandLocations.push_back(0); bandLocations.push_back(0.064988132F); bandLocations.push_back(0.167987381F); bandLocations.push_back(0.33123019F); bandLocations.push_back(0.589952605F); GLTFWriter::Texture *bandedTexture = [GLTFWriter::Texture::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_texture.xhtml#a3d15e0e6ad83cd7d50bb81ce2d0f30c8)(gltf, [GLTFWriter::Texture::TF\_RGB](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_texture.xhtml#aba6db4f52b9f0a1a866bce302b6d8964aaa8ea9a0e6b83932a6a882b1655e8e59), (unsigned int)colors.size() / 3, &colors[0], false, (unsigned int)bandLocations.size(), &bandLocations[0]); // generate vertices, and texture coordinates for a ball std::vector<float> vertices; std::vector<unsigned int> lines; std::vector<unsigned int> triangles; GLTFWriter::Test::MakeSphere(0, 0, -1, 0.5, 64, vertices, lines, triangles); const unsigned int numVertices = (unsigned int)vertices.size() / 3; const unsigned int numLines = (unsigned int)lines.size() / 2; const unsigned int numTriangles = (unsigned int)triangles.size() / 3; std::vector<float> textureCoords(numVertices); for (unsigned int i = 0; i < numVertices; ++i) textureCoords[i] = (vertices[3 * i + 1] + 0.5F) * range + mn; // coordinates go from mn to mx // NODE { // LEGEND // make this logarithmic with banded colors std::vector<float> valueLocations; // pairs of numbers, both of which are fractions from 0 to 1 valueLocations.push_back(0); valueLocations.push_back(0); valueLocations.push_back((15.84893192461114F - mn) / range); valueLocations.push_back(0.2F); valueLocations.push_back((25.1188643150958F - mn) / range); valueLocations.push_back(0.4F); valueLocations.push_back((39.8107170553498F - mn) / range); valueLocations.push_back(0.6F); valueLocations.push_back((63.0957344480194F - mn) / range); valueLocations.push_back(0.8F); valueLocations.push_back(1); valueLocations.push_back(1); GLTFWriter::Legend *legend = [GLTFWriter::Legend::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_legend.xhtml#a4538d9a6db05a532b33fccad579ec90e)(gltf, [GLTFWriter::Legend::LO\_HORIZONTAL](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_legend.xhtml#a339aacb19b79675bd3bc9a903349d933aff8809926fbf87a325921ca8ab072a48), 0.75, bandedTexture, mn, mx, [GLTFWriter::Legend::LA\_XCENTER\_YBOTTOM](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_legend.xhtml#a96892dc857e05a292528ddc6c29a6ea2a1c6ecc55be42d96e2a0526d71fd51c9b), \#ifdef _WIN32 ConvertToUtf8String(L"Y Ƥṏᴤΐṱϊӧת\\nBanded").c_str(), \#else "Y Position\\nBanded", \#endif "m", "User specified\\nbanded log legend\\nX Center, Y Bottom", 6, &valueLocations[0], false, false, 0, 0, 0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F, 0.25F); // BUFFER - combine attributes into a single buffer GLTFWriter::Buffer *buffer = [GLTFWriter::Buffer::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_buffer.xhtml#ab3810e93f82a461a858df95e572b221d)(gltf); // NODE GLTFWriter::Node *node = [GLTFWriter::Node::CreateMesh](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#a4dd14791b2b9e65c115aa7a9e3f340e8)(gltf, "Banded Log User Specified"); if (!node || !scene->AppendMesh(node)) { [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create mesh node"); } // LEGEND NODE \#ifdef \_WIN32 GLTFWriter::Node *legendNode = [GLTFWriter::Node::CreateLegend](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#a978541706f278234a1267f0bd2010ab7)(gltf, legend, ConvertToUtf8String(L"Ḷḙḡḗṋḍ").c_str()); \#else GLTFWriter::Node *legendNode = [GLTFWriter::Node::CreateLegend](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#a978541706f278234a1267f0bd2010ab7)(gltf, legend, "Legend"); \#endif node->AppendChild(legendNode); // MESH NODE GLTFWriter::Node *meshNode = [GLTFWriter::Node::CreateMesh](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#a4dd14791b2b9e65c115aa7a9e3f340e8)(gltf, "Mesh"); if (!meshNode || !node->AppendChild(meshNode)) { [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create mesh node"); } // MESH GLTFWriter::Mesh *mesh = [GLTFWriter::Mesh::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_mesh.xhtml#a9f7803b1b1eb72e4005665ca33f42788)(gltf); if (!mesh || !meshNode->AppendMesh(mesh)) { [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create mesh"); } // TECHNIQUE GLTFWriter::Technique *technique = [GLTFWriter::Technique::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_technique.xhtml#a13382537cb3622195e7cf0bf33e202c2)(gltf); if (!technique || // TECHNIQUE STATES !technique->AppendState([GLTFWriter::State::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_state.xhtml#a8cefd28a7477d1ab51809a51b21b8019)(gltf, [GLTFWriter::State::ST\_DEPTHTESTENABLE](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_state.xhtml#affd67e37265c1883f760fd0c368ba718a5a304a50ef0c9a98124f4c998ec47f3b), 1))) { [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create technique"); } // MATERIAL GLTFWriter::Material *material = [GLTFWriter::Material::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_material.xhtml#a683cf8ee4a674e8e7a7b01c97797eecc)(gltf, technique); if (!material || // MATERIAL UNIFORM VALUES !material->AppendValue([GLTFWriter::Value::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_value.xhtml#aee78dae95614f843f10d5e19f9d55d61)(gltf, "texture0", bandedTexture->GetID()))) { // texture0 name is auto-generated from Attribute TEXCOORD0 [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create material"); } // repack unsigned int indices into multiple sets of unsigned short indices GLTFWriter::Utils::Repack *repack = [GLTFWriter::Utils::Repack::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_utils_1_1_repack.xhtml#a81856527dc12542540dce2f517b5eec4)(numTriangles, 3, &triangles[0]); if (!repack) { [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create repack"); } for (unsigned int i = 0; i < repack->NumPacks(); ++i) { const float *packedData; unsigned int numAttributes = repack->NumAttributes(i); // POSITION ATTRIBUTE packedData = repack->ConstructRepackAttribute(&triangles[0], 3, &vertices[0], i); GLTFWriter::Attribute *vertex = [GLTFWriter::Attribute::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#a74b97d3bfc2585fe4d67a663a79abfa1)(gltf, "POSITION", [GLTFWriter::Attribute::AT\_FLOAT\_VEC3](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#aa787c451052ac912fd9af91c4ff54ddba0e6049e71b78dccf0f7f9791abe541c3), numAttributes, packedData, buffer); // TEXCOORD ATTRIBUTE packedData = repack->ConstructRepackAttribute(&triangles[0], 1, &textureCoords[0], i); GLTFWriter::Attribute *texture = [GLTFWriter::Attribute::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#a74b97d3bfc2585fe4d67a663a79abfa1)(gltf, "TEXCOORD0", [GLTFWriter::Attribute::AT\_FLOAT](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#aa787c451052ac912fd9af91c4ff54ddba6d124c894e5bdc043eeebec0f852e857), numAttributes, packedData, buffer); // INDICES unsigned int numIndices = 3U * repack->NumElements(i); const unsigned short *packedIndex = repack->ConstructRepackIndex(&triangles[0], i); GLTFWriter::Index *index = [GLTFWriter::Index::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_index.xhtml#ab4c4a14b880b4247257672358ad7ccfc)(gltf, numIndices, packedIndex, buffer); // PRIMITIVE GLTFWriter::Primitive *primitive = [GLTFWriter::Primitive::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_primitive.xhtml#a11dce37f59247e26bd6973ba5d7fefeb)(gltf, [GLTFWriter::Primitive::PT\_TRIANGLES](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_primitive.xhtml#a062b429c87d913e5adda11b381414c6ea85ba263ad510a4b423c5e1452fd5ca7d), material, index); if (!primitive || !mesh->AppendPrimitive(primitive) || !primitive->AppendAttribute(vertex) || !primitive->AppendAttribute(texture)) { [GLTFWriter::Utils::Repack::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_utils_1_1_repack.xhtml#ae380a98f35dd3c7dc8cd3cb87e56e9df)(repack); [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create primitive"); } } [GLTFWriter::Utils::Repack::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_utils_1_1_repack.xhtml#ae380a98f35dd3c7dc8cd3cb87e56e9df)(repack); } } // gradient log texture // we need to fudge the texture, because auto generated shaders do not support logging of data { float mn = 10; float mx = 100; float range = mx - mn; // TEXTURE std::vector<unsigned char> colors; colors.push_back(0); colors.push_back(0); colors.push_back(255); // blue colors.push_back(0); colors.push_back(255); colors.push_back(255); // cyan colors.push_back(0); colors.push_back(255); colors.push_back(0); // green colors.push_back(255); colors.push_back(255); colors.push_back(0); // yellow colors.push_back(255); colors.push_back(0); colors.push_back(0); // red // create a gradient texture that is really made up of bands const unsigned int numBands = 256; std::vector<float> bandLocations; // fractions from 0 to 1 for (unsigned int i = 0; i < numBands; ++i) bandLocations.push_back((float)(pow(10.0, (double)i / numBands) * 10.0 - mn) / range); GLTFWriter::Texture *smoothTexture = [GLTFWriter::Texture::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_texture.xhtml#a3d15e0e6ad83cd7d50bb81ce2d0f30c8)(gltf, [GLTFWriter::Texture::TF\_RGB](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_texture.xhtml#aba6db4f52b9f0a1a866bce302b6d8964aaa8ea9a0e6b83932a6a882b1655e8e59), (unsigned int)colors.size() / 3, &colors[0], false, (unsigned int)bandLocations.size(), &bandLocations[0]); // generate vertices, and texture coordinates for a ball std::vector<float> vertices; std::vector<unsigned int> lines; std::vector<unsigned int> triangles; GLTFWriter::Test::MakeSphere(0, 0, 1, 0.5, 64, vertices, lines, triangles); const unsigned int numVertices = (unsigned int)vertices.size() / 3; const unsigned int numLines = (unsigned int)lines.size() / 2; const unsigned int numTriangles = (unsigned int)triangles.size() / 3; std::vector<float> textureCoords(numVertices); for (unsigned int i = 0; i < numVertices; ++i) textureCoords[i] = (vertices[3 * i + 1] + 0.5F) * range + mn; // coordinates go from mn to mx // NODE { // LEGEND GLTFWriter::Legend *legend = [GLTFWriter::Legend::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_legend.xhtml#a4538d9a6db05a532b33fccad579ec90e)(gltf, [GLTFWriter::Legend::LO\_HORIZONTAL](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_legend.xhtml#a339aacb19b79675bd3bc9a903349d933aff8809926fbf87a325921ca8ab072a48), 0.333F, smoothTexture, mn, mx, [GLTFWriter::Legend::LA\_XCENTER\_YTOP](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_legend.xhtml#a96892dc857e05a292528ddc6c29a6ea2a546848f232c0cb79a70516945e7f367e), \#ifdef _WIN32 ConvertToUtf8String(L"Y Ƥṏᴤΐṱϊӧת\\nGradient").c_str(), \#else "Y Position\\nGradient", \#endif "m", "This is an example\\ngradient log legend\\nX Center, Y Top", 0, 0, true, true, 0, 0, 0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F, 0.25F); // BUFFER - combine attributes into a single buffer GLTFWriter::Buffer *buffer = [GLTFWriter::Buffer::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_buffer.xhtml#ab3810e93f82a461a858df95e572b221d)(gltf); // NODE GLTFWriter::Node *node = [GLTFWriter::Node::CreateMesh](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#a4dd14791b2b9e65c115aa7a9e3f340e8)(gltf, "Gradient Log"); if (!node || !scene->AppendMesh(node)) { [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create mesh node"); } // LEGEND NODE \#ifdef \_WIN32 GLTFWriter::Node *legendNode = [GLTFWriter::Node::CreateLegend](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#a978541706f278234a1267f0bd2010ab7)(gltf, legend, ConvertToUtf8String(L"Ḷḙḡḗṋḍ").c_str()); \#else GLTFWriter::Node *legendNode = [GLTFWriter::Node::CreateLegend](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#a978541706f278234a1267f0bd2010ab7)(gltf, legend, "Legend"); \#endif node->AppendChild(legendNode); // MESH NODE GLTFWriter::Node *meshNode = [GLTFWriter::Node::CreateMesh](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#a4dd14791b2b9e65c115aa7a9e3f340e8)(gltf, "Mesh"); if (!meshNode || !node->AppendChild(meshNode)) { [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create mesh node"); } // MESH GLTFWriter::Mesh *mesh = [GLTFWriter::Mesh::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_mesh.xhtml#a9f7803b1b1eb72e4005665ca33f42788)(gltf); if (!mesh || !meshNode->AppendMesh(mesh)) { [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create mesh"); } // TECHNIQUE GLTFWriter::Technique *technique = [GLTFWriter::Technique::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_technique.xhtml#a13382537cb3622195e7cf0bf33e202c2)(gltf); if (!technique || // TECHNIQUE STATES !technique->AppendState([GLTFWriter::State::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_state.xhtml#a8cefd28a7477d1ab51809a51b21b8019)(gltf, [GLTFWriter::State::ST\_DEPTHTESTENABLE](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_state.xhtml#affd67e37265c1883f760fd0c368ba718a5a304a50ef0c9a98124f4c998ec47f3b), 1))) { [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create technique"); } // MATERIAL GLTFWriter::Material *material = [GLTFWriter::Material::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_material.xhtml#a683cf8ee4a674e8e7a7b01c97797eecc)(gltf, technique); if (!material || // MATERIAL UNIFORM VALUES !material->AppendValue([GLTFWriter::Value::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_value.xhtml#aee78dae95614f843f10d5e19f9d55d61)(gltf, "texture0", smoothTexture->GetID()))) { // texture0 name is auto-generated from Attribute TEXCOORD0 [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create material"); } // repack unsigned int indices into multiple sets of unsigned short indices GLTFWriter::Utils::Repack *repack = [GLTFWriter::Utils::Repack::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_utils_1_1_repack.xhtml#a81856527dc12542540dce2f517b5eec4)(numTriangles, 3, &triangles[0]); if (!repack) { [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create repack"); } for (unsigned int i = 0; i < repack->NumPacks(); ++i) { const float *packedData; unsigned int numAttributes = repack->NumAttributes(i); // POSITION ATTRIBUTE packedData = repack->ConstructRepackAttribute(&triangles[0], 3, &vertices[0], i); GLTFWriter::Attribute *vertex = [GLTFWriter::Attribute::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#a74b97d3bfc2585fe4d67a663a79abfa1)(gltf, "POSITION", [GLTFWriter::Attribute::AT\_FLOAT\_VEC3](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#aa787c451052ac912fd9af91c4ff54ddba0e6049e71b78dccf0f7f9791abe541c3), numAttributes, packedData, buffer); // TEXCOORD ATTRIBUTE packedData = repack->ConstructRepackAttribute(&triangles[0], 1, &textureCoords[0], i); GLTFWriter::Attribute *texture = [GLTFWriter::Attribute::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#a74b97d3bfc2585fe4d67a663a79abfa1)(gltf, "TEXCOORD0", [GLTFWriter::Attribute::AT\_FLOAT](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#aa787c451052ac912fd9af91c4ff54ddba6d124c894e5bdc043eeebec0f852e857), numAttributes, packedData, buffer); texture->SetLogarithmic(true); // INDICES unsigned int numIndices = 3U * repack->NumElements(i); const unsigned short *packedIndex = repack->ConstructRepackIndex(&triangles[0], i); GLTFWriter::Index *index = [GLTFWriter::Index::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_index.xhtml#ab4c4a14b880b4247257672358ad7ccfc)(gltf, numIndices, packedIndex, buffer); // PRIMITIVE GLTFWriter::Primitive *primitive = [GLTFWriter::Primitive::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_primitive.xhtml#a11dce37f59247e26bd6973ba5d7fefeb)(gltf, [GLTFWriter::Primitive::PT\_TRIANGLES](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_primitive.xhtml#a062b429c87d913e5adda11b381414c6ea85ba263ad510a4b423c5e1452fd5ca7d), material, index); if (!primitive || !mesh->AppendPrimitive(primitive) || !primitive->AppendAttribute(vertex) || !primitive->AppendAttribute(texture)) { [GLTFWriter::Utils::Repack::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_utils_1_1_repack.xhtml#ae380a98f35dd3c7dc8cd3cb87e56e9df)(repack); [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Can't create primitive"); } } [GLTFWriter::Utils::Repack::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_utils_1_1_repack.xhtml#ae380a98f35dd3c7dc8cd3cb87e56e9df)(repack); } } if (!gltf->Write()) { [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); throw std::runtime_error("Error creating file"); } [GLTFWriter::GLTF::GLTFError](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#acf83a4d185d959503cb9f3f2c2e9fafe) error = gltf->GetError(); [GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c)(gltf); if (error != [GLTFWriter::GLTF::GLTF\_ERROR\_NONE](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#acf83a4d185d959503cb9f3f2c2e9fafea049c3b804e69ae05c02f4c2dedf4e0ea)) throw std::runtime_error("Error creating file"); } [ANSYS::Nexus::GLTFWriter::Attribute::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#a74b97d3bfc2585fe4d67a663a79abfa1) static Attribute * Create(GLTF *gltf, const char *name, AttributeType type, unsigned int count, const int *data, Buffer *buffer=0) [ANSYS::Nexus::GLTFWriter::Attribute::AT\_FLOAT\_VEC3](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#aa787c451052ac912fd9af91c4ff54ddba0e6049e71b78dccf0f7f9791abe541c3) @ AT_FLOAT_VEC3 3 AT_FLOATs **Definition:** [GLTFAttribute.h:44](_g_l_t_f_attribute_8h_source.xhtml#l00044) [ANSYS::Nexus::GLTFWriter::Attribute::AT\_FLOAT](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#aa787c451052ac912fd9af91c4ff54ddba6d124c894e5bdc043eeebec0f852e857) @ AT_FLOAT 4 byte float **Definition:** [GLTFAttribute.h:42](_g_l_t_f_attribute_8h_source.xhtml#l00042) [ANSYS::Nexus::GLTFWriter::Buffer::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_buffer.xhtml#ab3810e93f82a461a858df95e572b221d) static Buffer * Create(GLTF *gltf) [ANSYS::Nexus::GLTFWriter::Camera::CreateOrthographic](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_camera.xhtml#acab0b8344a7bb8b65c9690d221705377) static Camera * CreateOrthographic(GLTF *gltf, const char *name=0, float xmag=1, float ymag=1, float zfar=1000, float znear=-1000) [ANSYS::Nexus::GLTFWriter::GLTF::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a586171eb8e873e909db02a7eb4d80f5c) static void Destroy(GLTF *gltf) [ANSYS::Nexus::GLTFWriter::GLTF::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#ab7ba6d114c76cb60baf41aa6f13e9494) static GLTF * Create(const char *application, const char *applicationVersion, const char *filePath, OutputType fileType=OT_AVZ) [ANSYS::Nexus::GLTFWriter::GLTF::GLTFError](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#acf83a4d185d959503cb9f3f2c2e9fafe) GLTFError **Definition:** [GLTFGLTF.h:35](_g_l_t_f_g_l_t_f_8h_source.xhtml#l00035) [ANSYS::Nexus::GLTFWriter::GLTF::GLTF\_ERROR\_NONE](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#acf83a4d185d959503cb9f3f2c2e9fafea049c3b804e69ae05c02f4c2dedf4e0ea) @ GLTF_ERROR_NONE No Error. **Definition:** [GLTFGLTF.h:36](_g_l_t_f_g_l_t_f_8h_source.xhtml#l00036) [ANSYS::Nexus::GLTFWriter::Index::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_index.xhtml#ab4c4a14b880b4247257672358ad7ccfc) static Index * Create(GLTF *gltf, unsigned int count, const unsigned short *indices, Buffer *buffer=0) [ANSYS::Nexus::GLTFWriter::Legend::LO\_VERTICAL](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_legend.xhtml#a339aacb19b79675bd3bc9a903349d933ae89817b11c6c1230e3a9b56d04d402fa) @ LO_VERTICAL Top to bottom. **Definition:** [GLTFLegend.h:32](_g_l_t_f_legend_8h_source.xhtml#l00032) [ANSYS::Nexus::GLTFWriter::Legend::LO\_HORIZONTAL](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_legend.xhtml#a339aacb19b79675bd3bc9a903349d933aff8809926fbf87a325921ca8ab072a48) @ LO_HORIZONTAL Left to right. **Definition:** [GLTFLegend.h:33](_g_l_t_f_legend_8h_source.xhtml#l00034) [ANSYS::Nexus::GLTFWriter::Legend::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_legend.xhtml#a4538d9a6db05a532b33fccad579ec90e) static Legend * Create(GLTF *gltf, LegendOrientation orientation, float size, Texture *texture, float mn, float mx, LegendAttachment attachment=LA_XLEFT_YCENTER, const char *title=0, const char *units=0, const char *other=0, unsigned int numTicks=0, const float *valueLocations=0, bool border=false, bool logarithmic=false, float x=0, float y=0, float foregroundR=0, float foregroundG=0, float foregroundB=0, float backgroundR=1, float backgroundG=1, float backgroundB=1, float backgroundA=0) [ANSYS::Nexus::GLTFWriter::Legend::LA\_XCENTER\_YBOTTOM](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_legend.xhtml#a96892dc857e05a292528ddc6c29a6ea2a1c6ecc55be42d96e2a0526d71fd51c9b) @ LA_XCENTER_YBOTTOM Attach to bottom and position at horizontal center. **Definition:** [GLTFLegend.h:51](_g_l_t_f_legend_8h_source.xhtml#l00051) [ANSYS::Nexus::GLTFWriter::Legend::LA\_XCENTER\_YTOP](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_legend.xhtml#a96892dc857e05a292528ddc6c29a6ea2a546848f232c0cb79a70516945e7f367e) @ LA_XCENTER_YTOP Attach to top and position at horizontal center. **Definition:** [GLTFLegend.h:52](_g_l_t_f_legend_8h_source.xhtml#l00052) [ANSYS::Nexus::GLTFWriter::Legend::LA\_XRIGHT\_YCENTER](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_legend.xhtml#a96892dc857e05a292528ddc6c29a6ea2a74c6997c4d92c6b6c95e67dbe827fe32) @ LA_XRIGHT_YCENTER Attach to right and position at vertical center. **Definition:** [GLTFLegend.h:49](_g_l_t_f_legend_8h_source.xhtml#l00049) [ANSYS::Nexus::GLTFWriter::Legend::LA\_X\_YCENTER](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_legend.xhtml#a96892dc857e05a292528ddc6c29a6ea2a78c88258f5d9a3a003e6bb1d49446c3b) @ LA_X_YCENTER Use x location and position at vertical center. **Definition:** [GLTFLegend.h:41](_g_l_t_f_legend_8h_source.xhtml#l00041) [ANSYS::Nexus::GLTFWriter::Material::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_material.xhtml#a683cf8ee4a674e8e7a7b01c97797eecc) static Material * Create(GLTF *gltf, Technique *technique) [ANSYS::Nexus::GLTFWriter::Mesh::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_mesh.xhtml#a9f7803b1b1eb72e4005665ca33f42788) static Mesh * Create(GLTF *gltf) [ANSYS::Nexus::GLTFWriter::Node::CreateMesh](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#a4dd14791b2b9e65c115aa7a9e3f340e8) static Node * CreateMesh(GLTF *gltf, const char *name=0, bool visible=true, const double *matrix=0) [ANSYS::Nexus::GLTFWriter::Node::CreateLegend](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#a978541706f278234a1267f0bd2010ab7) static Node * CreateLegend(GLTF *gltf, Legend *legend, const char *name=0, bool visible=true) [ANSYS::Nexus::GLTFWriter::Node::CreateCamera](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#af6c4767cc8271d9d39816d278538197a) static Node * CreateCamera(GLTF *gltf, Camera *camera, const char *name=0, const double *matrix=0) [ANSYS::Nexus::GLTFWriter::Primitive::PT\_TRIANGLES](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_primitive.xhtml#a062b429c87d913e5adda11b381414c6ea85ba263ad510a4b423c5e1452fd5ca7d) @ PT_TRIANGLES Treats each triplet of vertices as an independent triangle. **Definition:** [GLTFMesh.h:39](_g_l_t_f_mesh_8h_source.xhtml#l00039) [ANSYS::Nexus::GLTFWriter::Primitive::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_primitive.xhtml#a11dce37f59247e26bd6973ba5d7fefeb) static Primitive * Create(GLTF *gltf, PrimitiveType type, Material *material, Index *indices=0, bool isPickable=true) [ANSYS::Nexus::GLTFWriter::Scene::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_scene.xhtml#aac8bcb85d4361abba99053b3c56eb08b) static Scene * Create(GLTF *gltf, const char *name=0, const char *units=0, float scale=1, Scene::BackgroundType backgroundType=Scene::BT_NONE, float r1=0, float g1=0, float b1=0, float r2=0, float g2=0, float b2=0) [ANSYS::Nexus::GLTFWriter::Scene::BT\_TB](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_scene.xhtml#ac17baf491cdba3613b0aa39719a3dbd8a0e9df8d9774401657f9d7aad4e18728f) @ BT_TB Make gradient from color 1 top to color 2 bottom. **Definition:** [GLTFScene.h:36](_g_l_t_f_scene_8h_source.xhtml#l00036) [ANSYS::Nexus::GLTFWriter::State::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_state.xhtml#a8cefd28a7477d1ab51809a51b21b8019) static State * Create(GLTF *gltf, StateType type, double v1, double v2=0, double v3=0, double v4=0) [ANSYS::Nexus::GLTFWriter::State::ST\_DEPTHTESTENABLE](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_state.xhtml#affd67e37265c1883f760fd0c368ba718a5a304a50ef0c9a98124f4c998ec47f3b) @ ST_DEPTHTESTENABLE Enables testing of depth buffer. Possible values are: **Definition:** [GLTFTechnique.h:186](_g_l_t_f_technique_8h_source.xhtml#l00186) [ANSYS::Nexus::GLTFWriter::Technique::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_technique.xhtml#a13382537cb3622195e7cf0bf33e202c2) static Technique * Create(GLTF *gltf, Program *program=0, bool is2D=false) [ANSYS::Nexus::GLTFWriter::Texture::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_texture.xhtml#a3d15e0e6ad83cd7d50bb81ce2d0f30c8) static Texture * Create(GLTF *gltf, TextureFormat format, TextureTarget target, Sampler *sampler, Image *image) [ANSYS::Nexus::GLTFWriter::Texture::TF\_RGB](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_texture.xhtml#aba6db4f52b9f0a1a866bce302b6d8964aaa8ea9a0e6b83932a6a882b1655e8e59) @ TF_RGB 3 unsigned chars per pixel. **Definition:** [GLTFTexture.h:34](_g_l_t_f_texture_8h_source.xhtml#l00034) [ANSYS::Nexus::GLTFWriter::Utils::Repack::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_utils_1_1_repack.xhtml#a81856527dc12542540dce2f517b5eec4) static Repack * Create(unsigned int elementCount, unsigned int elementSize, const unsigned int *indices) [ANSYS::Nexus::GLTFWriter::Utils::Repack::Destroy](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_utils_1_1_repack.xhtml#ae380a98f35dd3c7dc8cd3cb87e56e9df) static void Destroy(Repack *packer) [ANSYS::Nexus::GLTFWriter::Value::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_value.xhtml#aee78dae95614f843f10d5e19f9d55d61) static Value * Create(GLTF *gltf, const char *name, const Value *value=0)