## On this page # Test008 Last update: 16.07.2025 Animated textured sphere. See [Test006.cpp](_test006_8cpp-example.html) for more information about animations. This is another animation example that simply transforms a node matrix over a period of time. The underlying code in the ANSYSViewer extracts a quaternion from the matrix and interpolates between quaternions at the defined times. The animation in this example merely rotates the sphere about its Z axis. A custom shader is used that demonstrates the usage of a 2D texture coordinate. The 2D texture coordinates in this example are similar to latitude and longitude. <script src="./ansys251/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 "GLTFWriter.h" \#include "test.h" using namespace ANSYS::AVZ; // Lighted Textured Sphere TESTFUNC(LightedTexturedSphere) { [GLTFWriter::GLTF](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml) *gltf = GLTFWriter::GLTF::Create("MyApp", "1.0", functionName.c_str(), type); if (!gltf) throw std::runtime_error("Can't create GLTF"); // SCENE [GLTFWriter::Scene](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_scene.xhtml) *scene = GLTFWriter::Scene::Create(gltf, "TestScene", "m", 1.0, GLTFWriter::Scene::BT_SOLID, 0.5, 0.5, 0.5); if (!scene) { GLTFWriter::GLTF::Destroy(gltf); throw std::runtime_error("Can't create scene"); } // ANIMATION [GLTFWriter::Animation](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_animation.xhtml) *animation = GLTFWriter::Animation::Create(gltf, "My Animation"); // create a reusable time [GLTFWriter::Attribute](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_attribute.xhtml) *time = 0; { float _time[4]; unsigned int i = 0; _time[i++] = 0; // time 0 _time[i++] = 10; // time 1 _time[i++] = 20; // time 2 _time[i++] = 30; // time 3 time = GLTFWriter::Attribute::Create(gltf, "TIME", GLTFWriter::Attribute::AT_FLOAT, 4, _time); } // ANIMATION SAMPLER for sampling matrix [GLTFWriter::AnimationSampler](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_animation_sampler.xhtml) *sampler = 0; { float _mat[4 * 16]; unsigned int i = 0; // time 0 GLTFWriter::Test::Matrix4 m0; // identity for (unsigned int j = 0; j < 16; ++j) _mat[i++] = (float)m0[j]; // time 1 GLTFWriter::Test::Matrix4 m1; // identity GLTFWriter::Test::Matrix4 r1; r1.LoadRotation(GLTFWriter::Test::Vector3(0, 0, 0), GLTFWriter::Test::Vector3(0, 1, 0), DegreesToRadians(120)); m1 *= r1; for (unsigned int j = 0; j < 16; ++j) _mat[i++] = (float)m1[j]; // time 2 GLTFWriter::Test::Matrix4 m2; // identity GLTFWriter::Test::Matrix4 r2; r2.LoadRotation(GLTFWriter::Test::Vector3(0, 0, 0), GLTFWriter::Test::Vector3(0, 1, 0), DegreesToRadians(240)); m2 *= r2; for (unsigned int j = 0; j < 16; ++j) _mat[i++] = (float)m2[j]; // time 3 GLTFWriter::Test::Matrix4 m3; // identity GLTFWriter::Test::Matrix4 r3; r3.LoadRotation(GLTFWriter::Test::Vector3(0, 0, 0), GLTFWriter::Test::Vector3(0, 1, 0), DegreesToRadians(360)); m3 *= r3; for (unsigned int j = 0; j < 16; ++j) _mat[i++] = (float)m3[j]; [GLTFWriter::Attribute](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_attribute.xhtml) *matrix = GLTFWriter::Attribute::Create(gltf, "MATRIX", GLTFWriter::Attribute::AT_FLOAT_MAT4, 4, _mat); sampler = GLTFWriter::AnimationSampler::Create(gltf, time, matrix); } // LIGHTS { // LIGHT NODE [GLTFWriter::Node](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_node.xhtml) *lightNode = GLTFWriter::Node::CreateLight(gltf); if (!lightNode || !scene->[SetLight](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_scene.xhtml#ac92acb916999693ccaaefe8a81962c67)(lightNode)) { GLTFWriter::GLTF::Destroy(gltf); throw std::runtime_error("Can't create light"); } // LIGHTS [GLTFWriter::Light](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_light.xhtml) *light1 = GLTFWriter::Light::CreateAmbient(gltf); lightNode->[AppendLight](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_node.xhtml#a576db36280a02127b5eb662f0566543b)(light1); [GLTFWriter::Light](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_light.xhtml) *light2 = GLTFWriter::Light::CreateDirectional(gltf, 1, 1, 1, -1, -1, -1); lightNode->[AppendLight](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_node.xhtml#a576db36280a02127b5eb662f0566543b)(light2); } // CAMERA { // CAMERA [GLTFWriter::Camera](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_camera.xhtml) *camera = GLTFWriter::Camera::CreatePerspective(gltf); // CAMERA NODE std::vector<double> mat(16); mat[0] = 0.5; mat[1] = 0; mat[2] = 0; mat[3] = 0; mat[4] = 0; mat[5] = 0.5; mat[6] = 0; mat[7] = 0; mat[8] = 0; mat[9] = 0; mat[10] = 0.5; mat[11] = 0; mat[12] = 0; mat[13] = 0; mat[14] = 0; mat[15] = 1; [GLTFWriter::Node](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_node.xhtml) *cameraNode = GLTFWriter::Node::CreateCamera(gltf, camera, "TestCamera", &mat[0]); scene->[SetCamera](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_scene.xhtml#ae84fba7ea3c00159c2eae7adbfbfa61d)(cameraNode); } // generate vertices, normals, and texture coordinates for a ball std::vector<float> vertices; std::vector<float> normals; std::vector<float> texCoords; std::vector<unsigned short> triangles; GLTFWriter::Test::MakeTexturedSphere(0, 0, 0, 0.5, 64, vertices, normals, texCoords, triangles); // MESH NODE { // NODE std::vector<double> mat(16); mat[0] = 1; mat[1] = 0; mat[2] = 0; mat[3] = 0; mat[4] = 0; mat[5] = 1; mat[6] = 0; mat[7] = 0; mat[8] = 0; mat[9] = 0; mat[10] = 1; mat[11] = 0; mat[12] = 0; mat[13] = 0; mat[14] = 0; mat[15] = 1; [GLTFWriter::Node](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_node.xhtml) *node = GLTFWriter::Node::CreateMesh(gltf, "Sphere", true, &mat[0]); if (!node || !scene->[AppendMesh](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_scene.xhtml#a76e34d4c05fe34dde0fcc4913ad63981)(node)) { GLTFWriter::GLTF::Destroy(gltf); throw std::runtime_error("Can't create mesh node"); } // MESH [GLTFWriter::Mesh](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_mesh.xhtml) *mesh = GLTFWriter::Mesh::Create(gltf); if (!mesh || !node->[AppendMesh](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_node.xhtml#a68c9eec5fe03405e52b3558a62f8faec)(mesh)) { GLTFWriter::GLTF::Destroy(gltf); throw std::runtime_error("Can't create mesh"); } // TEXTURE [GLTFWriter::Texture](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_texture.xhtml) *texture = GLTFWriter::Test::CreateTexture(gltf, "earth.png"); // VERTEX SHADER std::string vsText(std::string("precision highp float;\\n") + "uniform mat4 u\_projectionMatrix;\\n" + "uniform mat4 u\_modelViewMatrix;\\n" + "attribute vec3 a\_position;\\n" + "uniform mat3 u\_normalMatrix;\\n" + "attribute vec3 a\_normal;\\n" + "varying vec3 v\_eyePosition;\\n" + "varying vec3 v\_normal;\\n" + "attribute vec2 a\_texCoord0;\\n" + "varying vec2 v\_texCoord0;\\n" + "void main() {\\n" + "vec4 l\_position = vec4(a\_position, 1.0);\\n" + "vec4 l\_eyePosition = u\_modelViewMatrix \* l\_position;\\n" + "v\_eyePosition = l\_eyePosition.xyz / l\_eyePosition.w;\\n" + "v\_normal = u\_normalMatrix \* a\_normal;\\n" + "v\_texCoord0 = a\_texCoord0;\\n" + "gl\_Position = u\_projectionMatrix \* l\_eyePosition;\\n" + "}\\n"); std::vector<const char *> uVertex; uVertex.push_back("u\_modelViewMatrix"); uVertex.push_back("u\_projectionMatrix"); uVertex.push_back("u\_normalMatrix"); std::vector<const char *> aVertex; aVertex.push_back("a\_position"); aVertex.push_back("a\_normal"); aVertex.push_back("a\_texCoord0"); [GLTFWriter::Shader](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_shader.xhtml) *vertexShader = GLTFWriter::Shader::Create(gltf, vsText.c_str(), (unsigned int)aVertex.size(), &aVertex[0], (unsigned int)uVertex.size(), &uVertex[0]); // FRAGMENT SHADER std::string fsText(std::string("precision highp float;\\n") + "uniform vec3 u\_light0Position;\\n" + "uniform vec3 u\_light1Ambient;\\n" + "uniform sampler2D u\_texture0;\\n" + "varying vec3 v\_eyePosition;\\n" + "varying vec3 v\_normal;\\n" + "varying vec2 v\_texCoord0;\\n" + "void main() {\\n" + "vec4 l\_color = vec4(1.0, 1.0, 1.0, 1.0);\\n" + "vec3 l\_normal = normalize(v\_normal);\\n" + "vec4 l\_texelColor = texture2D(u\_texture0, v\_texCoord0);\\n" + "l\_color \*= l\_texelColor;\\n" + "vec3 l\_frontAmbient = u\_light1Ambient \* l\_color.rgb;\\n" + "vec3 l\_frontDiffuse = vec3(0.0, 0.0, 0.0);\\n" + "vec3 l\_frontSpecular = vec3(0.0, 0.0, 0.0);\\n" + "vec3 l\_VP = normalize(u\_light0Position - v\_eyePosition);\\n" + "float l\_nDotVP = dot(l\_normal, l\_VP);\\n" + "if (!gl\_FrontFacing)\\n" + // two sided lighting "l\_nDotVP = -l\_nDotVP;\\n" + "if (l\_nDotVP > 0.0) {\\n" + // front faced "l\_frontDiffuse += l\_nDotVP \* l\_color.rgb;\\n" + "vec3 l\_halfVector = normalize(l\_VP + vec3(0.0, 0.0, 1.0));\\n" + // eye is always looking down Z axis "float l\_nDotHV = dot(l\_normal, l\_halfVector);\\n" + "if (!gl\_FrontFacing)\\n" + // two sided lighting "l\_nDotHV = -l\_nDotHV;\\n" "if (l\_nDotHV > 0.0)\\n" + // specular "l\_frontSpecular += pow(l\_nDotHV, 100.0) \* vec3(1.0, 1.0, 1.0);\\n" + "}\\n" + // front faced "l\_color = vec4(l\_frontAmbient + l\_frontDiffuse + l\_frontSpecular, l\_color.a);\\n" + "l\_color = clamp(l\_color, 0.0, 1.0);\\n" + "gl\_FragColor = l\_color;\\n" + "}\\n"); std::vector<const char *> uFragment; uFragment.push_back("u\_light0Position"); uFragment.push_back("u\_light1Ambient"); uFragment.push_back("u\_texture0"); [GLTFWriter::Shader](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_shader.xhtml) *fragmentShader = GLTFWriter::Shader::Create(gltf, fsText.c_str(), 0, 0, (unsigned int)uFragment.size(), &uFragment[0]); // PROGRAM [GLTFWriter::Program](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_program.xhtml) *program = GLTFWriter::Program::Create(gltf, vertexShader, fragmentShader); // TECHNIQUE [GLTFWriter::Technique](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_technique.xhtml) *technique = GLTFWriter::Technique::Create(gltf, program); if (!technique || // TECHNIQUE PARAMETERS !technique->[AppendParameter](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_technique.xhtml#ae55c184b6165d5f1ea88e3db34522ba9)(GLTFWriter::Parameter::Create(gltf, "u\_light0Position", "light0Position", GLTFWriter::Parameter::PT_FLOAT_VEC3, GLTFWriter::Value::Create(gltf, "", 0.0, 0.0, 1.0))) || !technique->[AppendParameter](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_technique.xhtml#ae55c184b6165d5f1ea88e3db34522ba9)(GLTFWriter::Parameter::Create(gltf, "u\_light1Ambient", "light1Ambient", GLTFWriter::Parameter::PT_FLOAT_VEC3, GLTFWriter::Value::Create(gltf, "", 0.0, 0.0, 0.0))) || !technique->[AppendParameter](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_technique.xhtml#ae55c184b6165d5f1ea88e3db34522ba9)(GLTFWriter::Parameter::CreateModelViewMatrix(gltf, "u\_modelViewMatrix")) || !technique->[AppendParameter](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_technique.xhtml#ae55c184b6165d5f1ea88e3db34522ba9)(GLTFWriter::Parameter::CreateProjectionMatrix(gltf, "u\_projectionMatrix")) || !technique->[AppendParameter](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_technique.xhtml#ae55c184b6165d5f1ea88e3db34522ba9)(GLTFWriter::Parameter::CreateNormalMatrix(gltf, "u\_normalMatrix")) || !technique->[AppendParameter](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_technique.xhtml#ae55c184b6165d5f1ea88e3db34522ba9)(GLTFWriter::Parameter::Create(gltf, "u\_texture0", "texture0", GLTFWriter::Parameter::PT_SAMPLER_2D)) || !technique->[AppendParameter](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_technique.xhtml#ae55c184b6165d5f1ea88e3db34522ba9)(GLTFWriter::Parameter::Create(gltf, "a\_position", "POSITION", GLTFWriter::Parameter::PT_FLOAT_VEC3)) || !technique->[AppendParameter](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_technique.xhtml#ae55c184b6165d5f1ea88e3db34522ba9)(GLTFWriter::Parameter::Create(gltf, "a\_normal", "NORMAL", GLTFWriter::Parameter::PT_FLOAT_VEC3)) || !technique->[AppendParameter](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_technique.xhtml#ae55c184b6165d5f1ea88e3db34522ba9)(GLTFWriter::Parameter::Create(gltf, "a\_texCoord0", "TEXCOORD0", GLTFWriter::Parameter::PT_FLOAT_VEC2)) || // TECHNIQUE STATES !technique->[AppendState](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_technique.xhtml#a8b2b0766157324d5a2093a3fca36379f)(GLTFWriter::State::Create(gltf, GLTFWriter::State::ST_BLENDENABLE, 1)) || !technique->[AppendState](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_technique.xhtml#a8b2b0766157324d5a2093a3fca36379f)(GLTFWriter::State::Create(gltf, GLTFWriter::State::ST_DEPTHTESTENABLE, 1))) { GLTFWriter::GLTF::Destroy(gltf); throw std::runtime_error("Can't create technique"); } // MATERIAL [GLTFWriter::Material](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_material.xhtml) *material = GLTFWriter::Material::Create(gltf, technique); if (!material || // MATERIAL UNIFORM VALUES !material->[AppendValue](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_material.xhtml#a2f8a41e41af7d9b8cd498506f6510dd7)(GLTFWriter::Value::Create(gltf, "light0Position", 100.0, 100.0, 100.0)) || !material->[AppendValue](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_material.xhtml#a2f8a41e41af7d9b8cd498506f6510dd7)(GLTFWriter::Value::Create(gltf, "light1Ambient", 0.3, 0.3, 0.3)) || !material->[AppendValue](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_material.xhtml#a2f8a41e41af7d9b8cd498506f6510dd7)(GLTFWriter::Value::Create(gltf, "texture0", texture->GetID())) || // this is a solid object, that we want to have an interior color so when it is clipped we see the solid interior color !material->[AppendValue](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_material.xhtml#a2f8a41e41af7d9b8cd498506f6510dd7)(GLTFWriter::Value::Create(gltf, "solidColor", 0.6, 0.4, 0.2, 1.0))) { GLTFWriter::GLTF::Destroy(gltf); throw std::runtime_error("Can't create material"); } // POSITION ATTRIBUTE const unsigned int numVertices = (unsigned int)vertices.size() / 3; [GLTFWriter::Attribute](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_attribute.xhtml) *vertex = GLTFWriter::Attribute::Create(gltf, "POSITION", GLTFWriter::Attribute::AT_FLOAT_VEC3, numVertices, &vertices[0]); // INDICES [GLTFWriter::Index](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_index.xhtml) *index = GLTFWriter::Index::Create(gltf, (unsigned int)triangles.size(), &triangles[0]); // TEXCOORD ATTRIBUTE [GLTFWriter::Attribute](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_attribute.xhtml) *texCoord = GLTFWriter::Attribute::Create(gltf, "TEXCOORD0", GLTFWriter::Attribute::AT_FLOAT_VEC2, numVertices, &texCoords[0]); // NORMAL ATTRIBUTE [GLTFWriter::Attribute](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_attribute.xhtml) *normal = GLTFWriter::Attribute::Create(gltf, "NORMAL", GLTFWriter::Attribute::AT_FLOAT_VEC3, numVertices, &normals[0]); // PRIMITIVE [GLTFWriter::Primitive](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_primitive.xhtml) *primitive = GLTFWriter::Primitive::Create(gltf, GLTFWriter::Primitive::PT_TRIANGLES, material, index); if (!primitive || !primitive->[AppendAttribute](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_primitive.xhtml#ac4144b4cc35eec9c11b07cc7352d209e)(vertex) || !primitive->[AppendAttribute](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_primitive.xhtml#ac4144b4cc35eec9c11b07cc7352d209e)(normal) || !primitive->[AppendAttribute](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_primitive.xhtml#ac4144b4cc35eec9c11b07cc7352d209e)(texCoord) || !mesh->[AppendPrimitive](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_mesh.xhtml#afb99ec25e2eebb4390c17f8770e4c23b)(primitive)) { GLTFWriter::GLTF::Destroy(gltf); throw std::runtime_error("Can't create primitive"); } animation->[AppendChannel](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_animation.xhtml#a3963dbc5049f56224031b9d748f5ecfa)(sampler, node, "matrix"); } if (!gltf->[Write](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a0bf3a4ec615dc8810776dd82a65eba91)()) { GLTFWriter::GLTF::Destroy(gltf); throw std::runtime_error("Error creating file"); } [GLTFWriter::GLTF::GLTFError](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a5b8141dc8536bc10d1a72996ad6f98b4) error = gltf->[GetError](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a63295f8f31619517e94cf27d3a8b9ea8)(); GLTFWriter::GLTF::Destroy(gltf); if (error != GLTFWriter::GLTF::GLTF_ERROR_NONE) throw std::runtime_error("Error creating file"); } [ANSYS::AVZ::GLTFWriter::AnimationSampler](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_animation_sampler.xhtml) Animation samplers define mechanisms for defining how animation channels change over time. **Definition:** [GLTFAnimation.h:35](_g_l_t_f_animation_8h_source.xhtml#l00034) [ANSYS::AVZ::GLTFWriter::Animation](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_animation.xhtml) Animations define mechanisms for changing over time, node properties and material values. **Definition:** [GLTFAnimation.h:69](_g_l_t_f_animation_8h_source.xhtml#l00068) [ANSYS::AVZ::GLTFWriter::Animation::AppendChannel](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_animation.xhtml#a3963dbc5049f56224031b9d748f5ecfa) virtual bool AppendChannel(AnimationSampler *sampler, Node *target, const char *path)=0 [ANSYS::AVZ::GLTFWriter::Attribute](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_attribute.xhtml) Attributes define the per element index values for elements defined by Index. **Definition:** [GLTFAttribute.h:32](_g_l_t_f_attribute_8h_source.xhtml#l00031) [ANSYS::AVZ::GLTFWriter::Camera](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_camera.xhtml) Cameras define an orthographic or perspective projection of the scene. **Definition:** [GLTFCamera.h:28](_g_l_t_f_camera_8h_source.xhtml#l00027) [ANSYS::AVZ::GLTFWriter::GLTF](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml) This is the main class of the GLTFWriter. **Definition:** [GLTFGLTF.h:32](_g_l_t_f_g_l_t_f_8h_source.xhtml#l00031) [ANSYS::AVZ::GLTFWriter::GLTF::Write](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a0bf3a4ec615dc8810776dd82a65eba91) virtual bool Write(bool formatJSON=false)=0 [ANSYS::AVZ::GLTFWriter::GLTF::GLTFError](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a5b8141dc8536bc10d1a72996ad6f98b4) GLTFError **Definition:** [GLTFGLTF.h:35](_g_l_t_f_g_l_t_f_8h_source.xhtml#l00035) [ANSYS::AVZ::GLTFWriter::GLTF::GetError](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_g_l_t_f.xhtml#a63295f8f31619517e94cf27d3a8b9ea8) virtual GLTFError GetError()=0 [ANSYS::AVZ::GLTFWriter::Index](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_index.xhtml) Indexes define elements within primitives. **Definition:** [GLTFIndex.h:29](_g_l_t_f_index_8h_source.xhtml#l00028) [ANSYS::AVZ::GLTFWriter::Light](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_light.xhtml) Lights define the light objects that can be added to a light node. **Definition:** [GLTFLight.h:31](_g_l_t_f_light_8h_source.xhtml#l00030) [ANSYS::AVZ::GLTFWriter::Material](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_material.xhtml) Materials describe how primitives are rendered. **Definition:** [GLTFMaterial.h:30](_g_l_t_f_material_8h_source.xhtml#l00029) [ANSYS::AVZ::GLTFWriter::Material::AppendValue](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_material.xhtml#a2f8a41e41af7d9b8cd498506f6510dd7) virtual bool AppendValue(Value *value)=0 [ANSYS::AVZ::GLTFWriter::Mesh](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_mesh.xhtml) Meshes define the renderable objects that can be added to a node. **Definition:** [GLTFMesh.h:104](_g_l_t_f_mesh_8h_source.xhtml#l00103) [ANSYS::AVZ::GLTFWriter::Mesh::AppendPrimitive](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_mesh.xhtml#afb99ec25e2eebb4390c17f8770e4c23b) virtual bool AppendPrimitive(Primitive *primitive)=0 [ANSYS::AVZ::GLTFWriter::Node](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_node.xhtml) Nodes are the GLTFWriter class that contain the data that is defined in the GLTF file. **Definition:** [GLTFNode.h:31](_g_l_t_f_node_8h_source.xhtml#l00030) [ANSYS::AVZ::GLTFWriter::Node::AppendLight](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_node.xhtml#a576db36280a02127b5eb662f0566543b) virtual bool AppendLight(Light *light)=0 [ANSYS::AVZ::GLTFWriter::Node::AppendMesh](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_node.xhtml#a68c9eec5fe03405e52b3558a62f8faec) virtual bool AppendMesh(Mesh *mesh)=0 [ANSYS::AVZ::GLTFWriter::Primitive](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_primitive.xhtml) Primitives are the renderable parts of meshes. **Definition:** [GLTFMesh.h:30](_g_l_t_f_mesh_8h_source.xhtml#l00029) [ANSYS::AVZ::GLTFWriter::Primitive::AppendAttribute](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_primitive.xhtml#ac4144b4cc35eec9c11b07cc7352d209e) virtual bool AppendAttribute(Attribute *attribute)=0 [ANSYS::AVZ::GLTFWriter::Program](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_program.xhtml) Programs are the GLSL executable code for rendering the primitives. **Definition:** [GLTFProgram.h:28](_g_l_t_f_program_8h_source.xhtml#l00027) [ANSYS::AVZ::GLTFWriter::Scene](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_scene.xhtml) Scenes are the GLTFWriter class that create the view of the data that is defined in the GLTF file. **Definition:** [GLTFScene.h:29](_g_l_t_f_scene_8h_source.xhtml#l00028) [ANSYS::AVZ::GLTFWriter::Scene::AppendMesh](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_scene.xhtml#a76e34d4c05fe34dde0fcc4913ad63981) virtual bool AppendMesh(Node *mesh)=0 [ANSYS::AVZ::GLTFWriter::Scene::SetLight](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_scene.xhtml#ac92acb916999693ccaaefe8a81962c67) virtual bool SetLight(Node *light)=0 [ANSYS::AVZ::GLTFWriter::Scene::SetCamera](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_scene.xhtml#ae84fba7ea3c00159c2eae7adbfbfa61d) virtual bool SetCamera(Node *camera)=0 [ANSYS::AVZ::GLTFWriter::Shader](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_shader.xhtml) Shaders are the GLSL executable code for vertex and fragment. **Definition:** [GLTFShader.h:26](_g_l_t_f_shader_8h_source.xhtml#l00025) [ANSYS::AVZ::GLTFWriter::Technique](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_technique.xhtml) Techniques performs the rendering of primitives. **Definition:** [GLTFTechnique.h:240](_g_l_t_f_technique_8h_source.xhtml#l00239) [ANSYS::AVZ::GLTFWriter::Technique::AppendState](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_technique.xhtml#a8b2b0766157324d5a2093a3fca36379f) virtual bool AppendState(State *state)=0 [ANSYS::AVZ::GLTFWriter::Technique::AppendParameter](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_technique.xhtml#ae55c184b6165d5f1ea88e3db34522ba9) virtual bool AppendParameter(Parameter *parameter)=0 [ANSYS::AVZ::GLTFWriter::Texture](class_a_n_s_y_s_1_1_a_v_z_1_1_g_l_t_f_writer_1_1_texture.xhtml) Textures are images that can be used to color a primitive. **Definition:** [GLTFTexture.h:28](_g_l_t_f_texture_8h_source.xhtml#l00027)