Method getOrCreateMaskMixShader

Engine/OSGLContext.cpp:507–546

}

GLShaderPtr
OSGLContext::getOrCreateMaskMixShader(bool maskEnabled)
{
    int shader_i = maskEnabled ? 1 : 0;

    if (_imp->applyMaskMixShader[shader_i]) {
        return _imp->applyMaskMixShader[shader_i];
    }
    _imp->applyMaskMixShader[shader_i] = std::make_shared<GLShader>();

    std::string fragmentSource;
    if (maskEnabled) {
        fragmentSource += "#define MASK_ENABLED\n";
    }

    fragmentSource += std::string(applyMaskMix_FragmentShader);

#ifdef DEBUG
    std::string error;
    bool ok = _imp->applyMaskMixShader[shader_i]->addShader(GLShader::eShaderTypeFragment, fragmentSource.c_str(), &error);
    if (!ok) {
        qDebug() << error.c_str();
    }
#else
    bool ok = _imp->applyMaskMixShader[shader_i]->addShader(GLShader::eShaderTypeFragment, fragmentSource.c_str(), nullptr);
#endif
    assert(ok);
#ifdef DEBUG
    ok = _imp->applyMaskMixShader[shader_i]->link(&error);
    if (!ok) {
        qDebug() << error.c_str();
    }
#else
    ok = _imp->applyMaskMixShader[shader_i]->link();
#endif
    assert(ok);
    Q_UNUSED(ok);

    return _imp->applyMaskMixShader[shader_i];
}

GLShaderPtr
OSGLContext::getOrCreateCopyUnprocessedChannelsShader(bool doR,