Test003.cpp | Ansys Developer Portal

Unlighted vertex colored box.

This example shows how to create vertices that are colored by a particular RGBA value. <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 "GLTFWriter.h"
#include "test.h"
 
using namespace ANSYS::Nexus;
 
// Unlighted vertex colored box
TESTFUNC(UnlightedVertexColors)
{
    GLTFWriter::GLTF *gltf = GLTFWriter::GLTF::Create("MyApp", "1.0", functionName.c_str(), type);
    if (!gltf)
        throw std::runtime_error("Can't create GLTF");
 
    // SCENE
    GLTFWriter::Scene *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");
    }
 
    // MESH NODE
    {
        // NODE
        GLTFWriter::Node *node = GLTFWriter::Node::CreateMesh(gltf, "3D Box");
        if (!node || !scene->AppendMesh(node)) {
            GLTFWriter::GLTF::Destroy(gltf);
            throw std::runtime_error("Can't create mesh node");
        }
 
        // MESH
        GLTFWriter::Mesh *mesh = GLTFWriter::Mesh::Create(gltf);
        if (!mesh || !node->AppendMesh(mesh)) {
            GLTFWriter::GLTF::Destroy(gltf);
            throw std::runtime_error("Can't create mesh");
        }
 
        GLTFWriter::Test::PrimMat pm = GLTFWriter::Test::CreateColoredBoxPrimitive(gltf, 0, 0, 0, 1, 1, 1);
        mesh->AppendPrimitive(pm.first);
    }
 
    if (!gltf->Write()) {
        GLTFWriter::GLTF::Destroy(gltf);
        throw std::runtime_error("Error creating file");
    }
 
    GLTFWriter::GLTF::GLTFError error = gltf->GetError();
 
    GLTFWriter::GLTF::Destroy(gltf);
 
    if (error != GLTFWriter::GLTF::GLTF_ERROR_NONE)
        throw std::runtime_error("Error creating file");
}

Post-processing tools 2024 R1

Test003

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