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Emulator Issues #1436

closed

Zelda TP only works at normal speed if using direct3d and projection hack

Added by pua4life about 15 years ago.

Status:
Fixed
Priority:
Normal
Assignee:
% Done:

0%

Operating system:
N/A
Issue type:
Bug
Milestone:
Regression:
No
Relates to usability:
No
Relates to performance:
No
Easy:
No
Relates to maintainability:
No
Regression start:
Fixed in:

Description

What steps will reproduce the problem?
1.Zelda will run very slow in hyrule field even on very fast pc
2.Using direct3d and applying ANY projection hack will improve the
gamespeed immensely

What version of the product are you using? On what operating system?
As far as I know,issue is the same on any operating system or any dolphin
revision

Actions #1

Updated by felixluz about 15 years ago

It gives you full speed in any area that is not Hyrule field
Hyrule still has the slowdown problem, causing you to go down to 15-20 FPS.

But it's great really, every other area is playable at max speeds (1080p with 4xAA
and 16xAF)

Actions #2

Updated by hrydgard about 15 years ago

  • Status changed from New to Accepted

Wow, weird.

I have no idea why this happens. It shouldn't make a speed difference, but it clearly
does, for me too.

Gonna try to figure out why and make it so you don't need to set the projection hack.

Actions #3

Updated by pua4life about 15 years ago

Also noticed speed improvement is bigger if using fullscreen then windowed mode.
I even tried windowed mode in much smaller res ( 800 x 600 ) while using my native
res for fullscreen ( 1680 x 1050 ) and fullscreen still was faster.
Very weird !

Actions #4

Updated by Anonymous about 15 years ago

pua4life: those sort of slowdowns in windowed mode can be a driver issue.

Actions #5

Updated by Wagnard28 about 15 years ago

Some ATI card dont kick in full 3D clock while in windowed mode.
This may explain the fullscreen speed.

Actions #6

Updated by pua4life about 15 years ago

Well I ran rivatuner monitoring utility and card ran at normal speeds.
So its not that. Probably driver issue.

Actions #7

Updated by pua4life about 15 years ago

It's been some time since this issue was discovered..
If it's bug in the code is it really this difficult to fix ? This is great speedup I
am sure it may benefit other games beside TP
Some user on the forums posted this,it may be of some help ?
Code:

bPhackvalue1 = 1;
fhackvalue1 = 0.00007999997f;
bProjHack1 = 1;
//broken minimap on OGL - speed-up on D3D

Code:

bPhackvalue1 = 1;
fhackvalue1 = 0.00007999998f;
bProjHack1 = 1;
//working minimap on OGL - no speed-up on D3D

Actions #8

Updated by pua4life about 15 years ago

Ok with rodolfoosvaldobogado changes now speedup is there even if projection hack is
not applied !
Can anyone explain what was happening I am really curious !

Actions #9

Updated by XTra.KrazzY about 15 years ago

  • Status changed from Accepted to Fixed
Actions #10

Updated by Anonymous about 15 years ago

This is not fixed. Hyrule field with the Golden pyramid = Big slowdown, before pyramid
and after it's fine.

Actions #11

Updated by daws72 about 15 years ago

Also in Wii Sports, in OGL now there's the old slow down, I got 25-30 fps now, when I
was able to get full 60fps.
No problem in D3D, a part some graphics glitchs.

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