Function renderDispatch

OpenCSG/src/opencsgRender.cpp:61–105

    static void renderDispatch(const std::vector<Primitive*>& primitives,
                               Algorithm algorithm,
                               DepthComplexityAlgorithm depthComplexityAlgorithm)
    {
        if (primitives.empty()) {
            return;
        }

        bool hasIntersected = false;
        for (std::vector<Primitive*>::const_iterator itr = primitives.begin(); itr != primitives.end(); ++itr) {
            Operation operation = (*itr)->getOperation();
            if (operation == Intersection) {
                hasIntersected = true;
                break;
            }
        }
        if (!hasIntersected) {
            return;
        }

        if (algorithm == Automatic) {
            algorithm = chooseAlgorithm(primitives);
            depthComplexityAlgorithm = chooseDepthComplexityAlgorithm(primitives);
        }

        if (depthComplexityAlgorithm == OcclusionQuery && !haveHardwareOcclusionQueries()) {
            // hardware support is missing. issue a warning?
            depthComplexityAlgorithm = DepthComplexitySampling;
        }

        if (algorithm != Automatic) {
            switch (algorithm) {
            case Goldfeather:
                renderGoldfeather(primitives, depthComplexityAlgorithm);
                break;

            case SCS:
                renderSCS(primitives, depthComplexityAlgorithm);
                break;

            default:
                break;
            }
        }
    }

    void render(const std::vector<Primitive*>& primitives)
    {