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 # Test012

 Last update: 16.07.2025 

Clipping plane.

This example demonstrates a clipping plane attached to the scene.

The clipping plane is created from three points, that are specified in object space coordinates. <script src="/ansys/nexus/viewer-loader.js"></script>

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 \* Use, duplication, or disclosure of this

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\#include <vector>

 

\#include "GLTFWriter.h"

\#include "test.h"

 

using namespace ANSYS::Nexus;

 

// Lighted solid colored sphere

TESTFUNC(ClipPlane)

{

 GLTFWriter::GLTF *gltf = <a id="a0" name="a0"></a>[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

 GLTFWriter::Scene *scene = <a id="a1" name="a1"></a>[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, <a id="a2" name="a2"></a>[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) {

 <a id="a3" name="a3"></a>[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");

 }

 

 // CLIP PLANE

 scene-&gt;SetClipPlane(0, 0, 0.2F, 1, 0, 0.2F, 1, 1, 0.2F);

 

 // LIGHTS

 {

 // LIGHT NODE

 GLTFWriter::Node *lightNode = <a id="a4" name="a4"></a>[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-&gt;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 = <a id="a5" name="a5"></a>[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-&gt;AppendLight(light1);

 

 GLTFWriter::Light *light2 = <a id="a6" name="a6"></a>[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-&gt;AppendLight(light2);

 }

 

 // CAMERA

 {

 // CAMERA

 GLTFWriter::Camera *camera = <a id="a7" name="a7"></a>[GLTFWriter::Camera::CreatePerspective](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_camera.xhtml#aff45bfb4357d46de63f59bb05473f527)(gltf);

 // CAMERA NODE

 std::vector&lt;double&gt; 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 = <a id="a8" name="a8"></a>[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", &amp;mat[0]);

 scene-&gt;SetCamera(cameraNode);

 }

 

 // MESH NODE

 {

 // NODE

 GLTFWriter::Node *node = <a id="a9" name="a9"></a>[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 Sphere");

 if (!node || !scene-&gt;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 = <a id="a10" name="a10"></a>[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-&gt;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");

 }

 

 // PRIMITIVE

 std::pair&lt;GLTFWriter::Primitive *, GLTFWriter::Material *&gt; pm = GLTFWriter::Test::CreateSolidColoredSpherePrimitive(gltf, 0, 0, 0, 0.5, 16, 1.0, 0.0, 0.0, 1.0);

 mesh-&gt;AppendPrimitive(pm.first);

 }

 

 if (!gltf-&gt;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");

 }

 

 <a id="a11" name="a11"></a>[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-&gt;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 != <a id="a12" name="a12"></a>[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::Camera::CreatePerspective](class_a_n_s_y_s_1_1_nexus_1_1_g_l_t_f_writer_1_1_camera.xhtml#aff45bfb4357d46de63f59bb05473f527)

static Camera * CreatePerspective(GLTF *gltf, const char *name=0, float yfov=22.619864948, float aspectRatio=1, float zfar=100000, float znear=0.1)



[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::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::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::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::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)