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Back to General and Gameplay Programming

Getting Smooth animation.

Zenroth · 2000-01-06T09:28:23

Ive been working on a high speed pong type game in my spare time while not coding my main project,and have ran into a few intresting problems. 1. Problems with differnt FPS outputs,with differnt max monitor refresh rates. 2. Non-smooth animation/movement when fps is ever below monitor refresh max. 3. Loss of accurate collision detection with just a drop of 1 or 2 FPS. Ok ill go on and explain what i mean. 1.If my monitor is set where for 640x480x16 refreshs at 75fps ,I will get like 38fps in a menu system(Its not using any images in vram,ect so i expected this.)However if i make my monitor refresh at 60fps for that mode i can get 54 and 60 fps in the menu for some reason. 2. I update all my movement by time instead of FPS. xpos+xvel*time; Now if my monitor refreshs at 60fps and i get 60fps no problem my animation is very smooth even at really high speed. However if i get 59 or 58fps my animation/movement of objects is very shaky/jittery. 3. I loss collision detection accuracy(probally just the drop of times it gets called. I really need someway to make it where it is called 60 or 75 times per loop no matter what.) Anyways i tryed using tripple buffering and that helped alot but it takes up to much vram for what im targeting(2mb video cards.) Also heres alittle info bout my program. Im using directdraw and the directdraw4 interface. I am using fullscreen exclusive mode of 640x480x16,and am using double buffering and pageflipping via the flip command. I am using the WAIT command on the flip,and all blits.

General and Gameplay Programming Programming

Started by Zenroth January 04, 2000 03:04 AM

10 comments, last by Zenroth 24 years, 6 months ago

Anonymous

January 06, 2000 09:28 AM

Hahaha Xai what you need is one of those helmets that holds 2 drinks and has straws hanging down for you to use

Since I bought one I havn''t once hit the clear fields button!
-ns

NightShade

122

January 06, 2000 09:28 AM

Hahaha Xai what you need is one of those helmets that holds 2 drinks and has straws hanging down for you to use

Since I bought one I havn't once hit the clear fields button!
-ns

(Unfortunatly it appears I tend to clear my password field right before I send the message sometimes, I should work on that.)

Edited by - NightShade on 1/6/00 9:30:31 AM

-ns-