## On this page # Test014 Last update: 16.07.2025 Scaled and textured spheres This example demonstrates the displacement and scaling pipeline. A grid of spheres is created using proxy geometry consisting of a single quad. Quads are instanced via scaling and translation before being rendered using a billboard sphere shader. <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 <cstdlib> \#include "GLTFWriter.h" \#include "test.h" using namespace ANSYS::Nexus; // Size/textured points TESTFUNC(ScaledPoints) { 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"); // 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 *rainbowGradientTexture = [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); // Use a quad proxy geometry for the spheres const std::vector<float> proxy_verts = { -1.f,1.f,0.f, 1.f,1.f,0.f, 1.f,-1.f,0.f, -1.f,-1.f,0.f }; const std::vector<unsigned short> proxy_conn = { 0,3,2, 0,2,1 }; // Build the various arrays const float tex_coord_min = 0.f; const float tex_coord_max = 10.f; std::vector<float> vertices; std::vector<unsigned short> triangles; std::vector<float> tex_coords; std::vector<float> point_disp_scale; // Test the scaled/textured/positioned spheres path // Uses the DisplacementScale attribute (dx,dy,dz,s) to scale 2D proxy // geometry, translate it by dx,dy,dz and render it with a sphere shader, // colored and textured the same as other gltf geometry. The proxy geometry // should be 2D and centered about 0,0,0 with unity size \[-1,1\]. It will be // drawn using a billboard technique so the geometry should be in the x,y plane. for(size\_t j = 0; j < 10; j++) { float y = (j * 0.1f) - 0.5f; for(size\_t i = 0; i < 10; i++) { float x = (i * 0.1f) - 0.5f; float z = 0.f; float scale = j * 0.005; // make a copy of the quad and place it into the vertex/triangle arrays auto vertex_index = vertices.size() / 3; for(const auto idx : proxy_conn) triangles.push_back(idx + vertex_index); vertices.insert(vertices.end(), proxy_verts.begin(), proxy_verts.end()); // Point location and size (applied to each proxy quad) for(size\_t vert = 0; vert < proxy_verts.size() / 3; vert++) { point_disp_scale.push_back(x); point_disp_scale.push_back(y); point_disp_scale.push_back(z); point_disp_scale.push_back(scale); // texture mapping tex_coords.push_back(i); } } } // SCENE 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", 1.0, [GLTFWriter::Scene::BT\_SOLID](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_scene.xhtml#ac17baf491cdba3613b0aa39719a3dbd8aeea551002921bb989b3ed35678ec982b), 0.5, 0.5, 0.5); 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"); } // LIGHTS { // LIGHT NODE GLTFWriter::Node *lightNode = [GLTFWriter::Node::CreateLight](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#a7883624afdcaae45b6018944a040a01c)(gltf); if (!lightNode || !scene->SetLight(lightNode)) { [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 light"); } // LIGHTS GLTFWriter::Light *light1 = [GLTFWriter::Light::CreateAmbient](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_light.xhtml#a14a825d32570498d64b6a427fb4f8207)(gltf); lightNode->AppendLight(light1); GLTFWriter::Light *light2 = [GLTFWriter::Light::CreateDirectional](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_light.xhtml#aa54e23609ac5f7a1a6808b62ee48163d)(gltf, 1, 1, 1, -1, -1, -3); lightNode->AppendLight(light2); } // 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] = 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 *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); } // PROXY IMAGE { // Using a PNG file from disk here, but could use in-memory PNG representation as well. GLTFWriter::Image* proxy_image = [GLTFWriter::Image::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_image.xhtml#ad04a843016070a80bc8b18f4920abd47)(gltf, "earth.png", false, true); if (proxy_image) { GLTFWriter::Node* proxy_image_node = [GLTFWriter::Node::CreateProxyImage](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#a658b7d94873d5755526f32b0fb7d0d56)(gltf, proxy_image, "scene\_proxy"); if (proxy_image_node) { scene->SetProxyImage(proxy_image_node); } } } // 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, "3D Points"); 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"); } // 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 || !node->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\_BLENDENABLE](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_state.xhtml#affd67e37265c1883f760fd0c368ba718a333b0ebeb6a896a3b0b973da1f1ce56a), 1)) || !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", rainbowGradientTexture->GetID()))) { [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"); } size\_t numVertices = vertices.size() / 3; // POSITION ATTRIBUTE GLTFWriter::Attribute *vertex = [GLTFWriter::Attribute::CreatePosition](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#a2490057f37890b1dd7debe04ddf1fd6f)(gltf, numVertices, vertices.data()); // TEXCOORD ATTRIBUTE GLTFWriter::Attribute *texCoord = [GLTFWriter::Attribute::CreateTextureCoord](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#af4bd5279c34932ef6afd15a858d39a6c)(gltf, 0, numVertices, tex_coords.data()); if (!texCoord || !texCoord->SetMinMax([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), &tex_coord_min, &tex_coord_max)) { [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 textureCoord"); } // DISPLACEMENTSCALE ATTRIBUTE // Specifies the displacement and scaling for each vertex in the proxy geometry // It also triggers "billboard" orientation. GLTFWriter::Attribute *displacement_scale = [GLTFWriter::Attribute::CreateDisplacementScale](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#ab8a06a0c267a6e1dd895ca10e8c716eb)(gltf, numVertices, point_disp_scale.data()); // INDEX ATTRIBUTE 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, triangles.size(), triangles.data()); // 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(texCoord) || !primitive->AppendAttribute(displacement_scale)) { [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"); } } 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::CreatePosition](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#a2490057f37890b1dd7debe04ddf1fd6f) static Attribute * CreatePosition(GLTF *gltf, unsigned int count, const float *data, Buffer *buffer=0) [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::Attribute::CreateDisplacementScale](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#ab8a06a0c267a6e1dd895ca10e8c716eb) static Attribute * CreateDisplacementScale(GLTF *gltf, unsigned int count, const float *data, Buffer *buffer=0) [ANSYS::Nexus::GLTFWriter::Attribute::CreateTextureCoord](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_attribute.xhtml#af4bd5279c34932ef6afd15a858d39a6c) static Attribute * CreateTextureCoord(GLTF *gltf, unsigned int num, unsigned int count, const float *data, Buffer *buffer=0) [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::Image::Create](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_image.xhtml#ad04a843016070a80bc8b18f4920abd47) static Image * Create(GLTF *gltf, const char *filePath, bool generateMipmap=false, bool isProxy=false) [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::Light::CreateAmbient](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_light.xhtml#a14a825d32570498d64b6a427fb4f8207) static Light * CreateAmbient(GLTF *gltf, float colR=0.3, float colG=0.3, float colB=0.3) [ANSYS::Nexus::GLTFWriter::Light::CreateDirectional](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_light.xhtml#aa54e23609ac5f7a1a6808b62ee48163d) static Light * CreateDirectional(GLTF *gltf, float colR=1, float colG=1, float colB=1, float dirX=0, float dirY=0, float dirZ=-1, float specColR=1, float specColG=1, float specColB=1, float shininess=100) [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::CreateProxyImage](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#a658b7d94873d5755526f32b0fb7d0d56) static Node * CreateProxyImage(GLTF *gltf, Image *image, const char *name=0) [ANSYS::Nexus::GLTFWriter::Node::CreateLight](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_node.xhtml#a7883624afdcaae45b6018944a040a01c) static Node * CreateLight(GLTF *gltf) [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\_SOLID](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_scene.xhtml#ac17baf491cdba3613b0aa39719a3dbd8aeea551002921bb989b3ed35678ec982b) @ BT_SOLID Make solid color from color 1. **Definition:** [GLTFScene.h:35](_g_l_t_f_scene_8h_source.xhtml#l00035) [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\_BLENDENABLE](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_state.xhtml#affd67e37265c1883f760fd0c368ba718a333b0ebeb6a896a3b0b973da1f1ce56a) @ ST_BLENDENABLE Enables blending of fragment colors. Possible values are: **Definition:** [GLTFTechnique.h:166](_g_l_t_f_technique_8h_source.xhtml#l00166) [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::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)