Method ParseChunk

code/AssetLib/3DS/3DSLoader.cpp:360–450

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// ------------------------------------------------------------------------------------------------
void Discreet3DSImporter::ParseChunk(const char *name, unsigned int num) {
    ASSIMP_3DS_BEGIN_CHUNK();

    // IMPLEMENTATION NOTE;
    // Cameras or lights define their transformation in their parent node and in the
    // corresponding light or camera chunks. However, we read and process the latter
    // to be able to return valid cameras/lights even if no scenegraph is given.

    // get chunk type
    switch (chunk.Flag) {
    case Discreet3DS::CHUNK_TRIMESH: {
        // this starts a new triangle mesh
        mScene->mMeshes.emplace_back(std::string(name, num));

        // Read mesh chunks
        ParseMeshChunk();
    } break;

    case Discreet3DS::CHUNK_LIGHT: {
        // This starts a new light
        auto *light = new aiLight();
        mScene->mLights.push_back(light);

        light->mName.Set(std::string(name, num));

        // First read the position of the light
        light->mPosition.x = mStream->GetF4();
        light->mPosition.y = mStream->GetF4();
        light->mPosition.z = mStream->GetF4();

        light->mColorDiffuse = aiColor3D(1.f, 1.f, 1.f);

        // Now check for further subchunks
        if (!bIsPrj) /* fixme */
            ParseLightChunk();

        // The specular light color is identical the the diffuse light color. The ambient light color
        // is equal to the ambient base color of the whole scene.
        light->mColorSpecular = light->mColorDiffuse;
        light->mColorAmbient = mClrAmbient;

        if (light->mType == aiLightSource_UNDEFINED) {
            // It must be a point light
            light->mType = aiLightSource_POINT;
        }
    } break;

    case Discreet3DS::CHUNK_CAMERA: {
        // This starts a new camera
        auto *camera = new aiCamera();
        mScene->mCameras.push_back(camera);
        camera->mName.Set(std::string(name, num));

        // First read the position of the camera
        camera->mPosition.x = mStream->GetF4();
        camera->mPosition.y = mStream->GetF4();
        camera->mPosition.z = mStream->GetF4();