Motion blur is also commonly used in games to smooth the transition between frames. However, this is often done by calculating the relative screen position differences from the previous frame, so it is not physically correct
kevinchai0
To add on, Motion Blur is a common feature in a lot of video games nowadays. It is a feature that has mixed opinions from a lot of people in terms of visual quality. Some people enjoy the effect and argue that it makes the game seem more realistic. Others believe that it is excessive and makes them dizzy. When it comes down to performance, Motion Blur tends to decrease the performance of a video game. I'm not too sure about the exact reasoning behind this, but I think it may have something to do with adding an effect after the image is created.
GuardHei
To answer why motion blur decreases the performance, this is because game needs to sample multiple points on the framebuffer along the motion vector. Meanwhile, texture sampling is very expensive on GPU.
Motion blur is also commonly used in games to smooth the transition between frames. However, this is often done by calculating the relative screen position differences from the previous frame, so it is not physically correct
To add on, Motion Blur is a common feature in a lot of video games nowadays. It is a feature that has mixed opinions from a lot of people in terms of visual quality. Some people enjoy the effect and argue that it makes the game seem more realistic. Others believe that it is excessive and makes them dizzy. When it comes down to performance, Motion Blur tends to decrease the performance of a video game. I'm not too sure about the exact reasoning behind this, but I think it may have something to do with adding an effect after the image is created.
To answer why motion blur decreases the performance, this is because game needs to sample multiple points on the framebuffer along the motion vector. Meanwhile, texture sampling is very expensive on GPU.