How do I limit framerate in SDL?
Capping your FPS is quite simple: just subtract your frame time from your desired time and wait out the difference with SDL_Delay(). However, this function only takes delay in milliseconds—unfortunately, you cannot cap your FPS with very much precision. (At least with SDL—look at std::chrono for more.)
What are the different types of frame rates?
Frame rate or frames per second (fps) plays a crucial role in determining the quality of your video as well as improving the viewing experience for the audience. But with so many different types of frame rates – 24fps, 30 fps, 60 fps, 120 fps – it can get daunting to figure out which one to use and when to use them.
Is constant frame rate better than variable frame rate?
2 Prefer CFR – Constant Frame Rate VFR is much better than CFR. However, some video editing software such as Adobe Premiere does not support a VFR video. In this case, you have to choose “CFR”. If you select “60” FPS with the CFR option, you will normally get a “constant 60FPS video”.
How is SDL FPS calculated?
To calculate frames per second, you just take the number of rendered frames and divide it by the seconds passed.
What is SDL_RenderPresent?
SDL_UpdateWindowSurface is equivalent to the SDL 1.2 API SDL_Flip(). On the other side when you use the GPU to render textures and you store your texture on the GPU(this is called hardware accelerated rendering), which you should, you use SDL_RenderPresent . This function tells the GPU to render to the screen.
What are different frame rates used for?
Different frame rates yield different viewing experiences. Choosing a frame rate often means considering multiple factors, such as how realistic you want your video to look or whether you think using techniques like slow motion or motion-blur effects.
Should I use variable frame rate?
VFR is especially useful for creating videos of slideshow presentations or when the video contains large amounts of completely static frames, as a means of improving compression rate, or if the video contains a combination of 24/25/30/50/60 FPS footages and the creator or editor of the video wishes to avoid artifacts …
Is variable refresh rate good for gaming?
If you’re a gamer who plays multiplayer, sports and fast-twitch games, then having VRR will add to the experience. The benefit is reduced latency times, better image quality and less screen tearing. With games that support 4K/120Hz, the promise is a very slick and responsive gaming experience.
How can I tell the FPS of a video?
To find out video resolution and frame rate of a video file, you can simply view its properties in modern Windows or any other OS. In Windows 7, the information is found out from the Properties > Details (tab) of a video. Video information like frame width and frame height is present there.
What is texture in SDL?
As mentioned in the last lesson, textures are the GPU rendering equivalent of surfaces. Hence, textures are almost always created from surfaces, using the function SDL_CreateTextureFromSurface().
Which video frame rate is best?
Typically, 30 fps is the lowest frame rate at which a game can be playable. Still, for most gamers, 60 fps is the ideal frame rate for gaming owing to fast responsiveness, smoothness, clarity, and viewing experience.
Does changing frame rate affect video quality?
No. The quality of your recorded video is based on the resolution. In general, the higher the picture resolution the higher the quality. The frame rate will affect how smooth the video is, but it won’t impact the clarity of the video.
Is it better to shoot 4K 30fps or 1080p 60fps?
Because there are more frames per second, a 60fps video is more likely to capture twice as much underlying data as the 30fps. The other benefit of choosing a 60fps video speed is that you can slow down the video while keeping a higher quality of slow motion.
Should I turn on VRR on Windows?
Enable Variable Refresh Rate for games in Windows 10 When enabled, the option will reduce screen tearing and allow a higher frame rate by enabling the option for the games for games that don’t support it natively. Simply restart your computer and allow the changes to take effect.