I would like to draw multiple instances (like 100000) of the same texture at the same time (rotatable and on different positions). Currently I'm using SDL_RenderCopyEx (using a shared SDL_Texture* for that) and I'm wondering if I'm using the correct function for that purpose. Is there a faster way, as I'm down at 18 FPS. Thanks.
我想同时绘制相同纹理的多个实例（如100000）（可旋转和在不同位置）。目前我正在使用SDL_RenderCopyEx（使用共享的SDL_Texture *），我想知道我是否正在使用正确的功能。有没有更快的方式，因为我的速度低于18 FPS。谢谢。
1 个解决方案
#1
1
As i remember SDL2 doesn´t provide any function to make instanced rendering, so you have to iterate through your objects and draw them 1 by one (and thats why are your FPS falling down)
我记得SDL2没有提供任何实现渲染的功能，所以你必须遍历你的对象并逐个绘制它们（这就是为什么你的FPS掉落）
Also i don´t understand why did u add an opengl tag here, but when we talk about opengl, i recommend you checking instanced rendering http://learnopengl.com/#!Advanced-OpenGL/Instancing
另外我不明白为什么你在这里添加一个opengl标签，但是当我们谈论opengl时，我建议你检查实例渲染http://learnopengl.com/#!Advanced-OpenGL/Instancing
#1
1
As i remember SDL2 doesn´t provide any function to make instanced rendering, so you have to iterate through your objects and draw them 1 by one (and thats why are your FPS falling down)
我记得SDL2没有提供任何实现渲染的功能，所以你必须遍历你的对象并逐个绘制它们（这就是为什么你的FPS掉落）
Also i don´t understand why did u add an opengl tag here, but when we talk about opengl, i recommend you checking instanced rendering http://learnopengl.com/#!Advanced-OpenGL/Instancing
另外我不明白为什么你在这里添加一个opengl标签，但是当我们谈论opengl时，我建议你检查实例渲染http://learnopengl.com/#!Advanced-OpenGL/Instancing