zbuffer issue

Absolution · 2001-03-21T17:29:20

One problem I have noticed with the zbuffer I have implemented is that i have to zero it out every iteration of the main loop. This seems to be the largest bottleneck of my program right now. I have tried a basic loop, a memset, and I even coded it in assembly, but they all take about the same time (I''m guessing my compiler is reducing them all to the same code - i.e. the assembly). Anybody have any ideas on how I can speed this part of my code up? A faster way to zero out an array of doubles would help. Abs

Graphics and GPU Programming Programming

Started by Absolution March 19, 2001 05:16 PM

10 comments, last by Absolution 23 years, 1 month ago

sjelkjd

171

March 21, 2001 05:28 PM

quote:Original post by Absolution
Now if I could only remember what the maximum value of a float was....

Abs

Edited by - Absolution on March 21, 2001 6:04:36 PM

for single precision FP, that would be
1.11111111111111111111111(base 2)*2^(256-127) or 2^128-1, or approx 6.8E38

sjelkjd

171

March 21, 2001 05:29 PM

quote:Original post by Absolution
Now if I could only remember what the maximum value of a float was....

Abs

Edited by - Absolution on March 21, 2001 6:04:36 PM

Oops, ignore that last post - it should be
for single precision FP, that would be
1.11111111111111111111111(base 2)*2^(256-127) or 2^128-1, or approx 3.4E38

zbuffer issue

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