// generate textures
{
    MRenderingContext * render = MEngine::getInstance()->getRenderingContext();
    MSystemContext * system = MEngine::getInstance()->getSystemContext();

    MTextureRef* colorTexture = NULL;
    MTextureRef* depthTexture = NULL;

    // screen size
    unsigned int screenWidth = 0;
    unsigned int screenHeight = 0;
    system->getScreenSize(&screenWidth, &screenHeight);

    int resolution = pow2(max(screenWidth, screenHeight));

    unsigned int colorTexId = 0;
    unsigned int depthTexId = 0;

    // create render textures
    render->createTexture(&colorTexId);
    render->bindTexture(depthTexId);
    render->setTextureFilterMode(M_TEX_FILTER_LINEAR, M_TEX_FILTER_LINEAR);
    render->setTextureUWrapMode(M_WRAP_CLAMP);
    render->setTextureVWrapMode(M_WRAP_CLAMP);
    render->texImage(0, resolution, resolution, M_UBYTE, M_RGB, 0);

    render->createTexture(&depthTexId);
    render->bindTexture(depthTexId);
    render->setTextureFilterMode(M_TEX_FILTER_NEAREST, M_TEX_FILTER_NEAREST);
    render->texImage(0, resolution, resolution, M_UBYTE, M_DEPTH, 0);

    colorTexture = new MTextureRef(colorTexId, NULL, true);
    depthTexture = new MTextureRef(depthTexId, NULL, true);

    camera->setRenderColorTexture(colorTexture);
    camera->setRenderDepthTexture(depthTexture);
}