English Amiga Board - View Single Post - Optimizing Wolf3D-style rendering

Master484 · 12 January 2018, 14:57

Here is a random idea:

Could a system be used where the graphics of the previous frame are never cleared, but instead we preserve them, and when drawing a new frame we only draw those pixels that have been changed since the last frame, and therefore need to be updated.

And those pixels that remain the same color as they did last frame, are simply skipped.

So every frame we would go through the pixels one by one, and check the current color versus the color that it should be; and draw the pixel only in the case where the "should be color" is different from the current color.

I think in quite many cases the individual pixel colors in two consequtive frames would be the same, and also you would never need to totally "clear" the screen. So could this method work or boost the speed?

And I don't have any experience in raycasting or 3D coding, just thought to mention this idea.

12 January 2018, 14:57	#34
Master484 Registered User Join Date: Nov 2015 Location: Vaasa, Finland Posts: 525	Here is a random idea: Could a system be used where the graphics of the previous frame are never cleared, but instead we preserve them, and when drawing a new frame we only draw those pixels that have been changed since the last frame, and therefore need to be updated. And those pixels that remain the same color as they did last frame, are simply skipped. So every frame we would go through the pixels one by one, and check the current color versus the color that it should be; and draw the pixel only in the case where the "should be color" is different from the current color. I think in quite many cases the individual pixel colors in two consequtive frames would be the same, and also you would never need to totally "clear" the screen. So could this method work or boost the speed? And I don't have any experience in raycasting or 3D coding, just thought to mention this idea.