纹理不渲染

Question

I have the following code in which I'm attempting to render first a background, then some items on top of them. The only thing that comes out is the background.

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Textures is a vector of a class I made, which basically just holds an SDL_Texture* and an SDL_Rect* . The textures aren't NULL , the SDL_Rect positioning is on the screen, I'm not sure why they aren't showing up.

//Clear screen
SDL_RenderClear(renderer);

SDL_RenderCopy(renderer, background, NULL, NULL); //Render background

for (auto texture : textures) {
    if (texture.getXPos() && texture.getYPos()) { //Position, if applicable
        SDL_RenderCopy(renderer, texture.getTexture(), NULL, texture.getRect());
    }
    else {
        SDL_RenderCopy(renderer, texture.getTexture(), NULL, NULL);
    }
}

//Update screen
SDL_RenderPresent(renderer);

Answer 1

愚蠢的错误：当我使用SDL_Surface我会将SDL_Rect的w和h设置为0，这显然不是SDL_Texture工作SDL_Texture 。