Dune intro very slow

Bladeforce · 17 April 2020, 22:30

Hi, Just noticed the dune game intro is very slow the part where its panning out from the planets. All other games seem to be fine speed wise just dune which is odd. Is this a known problem?

Bladeforce · 12 December 2020, 17:45

Can i bump this please and ask someone to try Dune and when the intro with planets comes on does it go ultra slow?

FOL · 14 December 2020, 13:15

Quote:

Originally Posted by Bladeforce

Can i bump this please and ask someone to try Dune and when the intro with planets comes on does it go ultra slow?

Its normal, I had this game for my 13th birthday. I have played it from HDD on real A500, WHDLoad and all ways. Its exactly the same, panes out slowly.
I just press escape to skip it these days.

DamienD · 14 December 2020, 16:11

The Dune intro is a nightmare to get working correctly / glitch free in emulation.

Ok, it's WinUAE but see this thread: Dune gfx glitch

From my experience, the planets moving slow is caused by having "Cycle-exact (Full)" ticket.

...and here is how the intro runs:

https://streamable.com/4gwmnr

FOL · 14 December 2020, 18:22

It happens on real A500, its perfectly normal. In emulation its exactly the same. Its also not a nightmare to get working in Emulation. If not using A500 config, you have to disable CPU caches in ESM.

Quote:

Originally Posted by DamienD

The Dune intro is a nightmare to get working correctly / glitch free in emulation.

Ok, it's WinUAE but see this thread: Dune gfx glitch

From my experience, the planets moving slow is caused by having "Cycle-exact (Full)" ticket.

...and here is how the intro runs:

https://streamable.com/4gwmnr

DamienD · 14 December 2020, 18:55

Quote:

Originally Posted by FOL

It happens on real A500, its perfectly normal. In emulation its exactly the same.

It's hard to know what Bladeforce means without seeing a video.

Hence why I posted one with everything running well.

There's a problem if his experience differs.

Quote:

Originally Posted by FOL

Its also not a nightmare to get working in Emulation. If not using A500 config, you have to disable CPU caches in ESM.

It will work in emulation but getting the intro glitch free requires the settings I posted in that thread.

Also, not talking about the WHDLoad version as it's probably fixed the small issues, but the floppy and native install.

FOL · 14 December 2020, 18:58

Quote:

Originally Posted by DamienD

Also, not talking about the WHDLoad version as it's probably fixed the small issues, but the floppy and native install.

Purist here. I have only ever played it from HDD via standard install.
I find disabling CPU caches and not running setpatch fixes glitches on A1200. Even in Emulation.

Bladeforce · 24 December 2020, 21:28

Hello, Sorry for the late reply. Yes it is at the intro where the planet spans out. The WHDload version works fine in my OS4 install but this is just using the standard fs-uae

DamienD · 25 December 2020, 13:23

Quote:

Originally Posted by Bladeforce

Hello, Sorry for the late reply. Yes it is at the intro where the planet spans out. The WHDload version works fine in my OS4 install but this is just using the standard fs-uae

I've never tried the WHDLoad version so can't comment.

Can you try the floppy disk or a native install?

Edit: just tested the WHDLoad version in my ClassicWB Lite 3.1 .HDF and no issues.

Bladeforce · 27 December 2020, 12:52

Quote:

Originally Posted by DamienD

I've never tried the WHDLoad version so can't comment.

Can you try the floppy disk or a native install?

Edit: just tested the WHDLoad version in my ClassicWB Lite 3.1 .HDF and no issues.

Hello, the slowdown just appears with the floppy image when using fs-uae and invoking the adf from the config file.
I see about the cpu setting you are mentioning above but i see no comparable option for the fs-uae config file

FrodeSolheim · 28 December 2020, 16:08

Based on what FOL said about real A500, presumably the intro runs a bit slow in places simply because the game isn't coded to handle smooth animation on a stock A500 in those places. A500 cycle exact configuration of course tries to mirror real hardware.

By using an A1200 model instead, you'll get more horsepower to run the intro, but I tested that and noticed some glitches (as DamienD also mentioned). Using immediate blits (as suggested in the thread linked by DamienD) seems to fix or improve that, though I haven't done thorough testing. You can enable this by adding

Code:

uae_immediate_blits = true

in the custom configuration dialog or manually to an .fs-uae config file.

Bladeforce · 28 December 2020, 16:53

Many thanks for the help Damien, Frode and FOL

I have changed the config file to an A1200 and added the line

"uae_immediate_blits = true"

Apart from this error when starting at the bottom of the screen

"Immediate blitter and waiting blits cant be enabled simultaneously"

The intro now works flawlessly

Thanks very much!

DamienD · 28 December 2020, 19:09

Quote:

Originally Posted by Bladeforce

"Immediate blitter and waiting blits cant be enabled simultaneously"

Yes, you cannot have both... in WinUAE if you have "Wait for Blitter" and then select "Immediate Blitter", "Wait for Blitter" gets disabled.

I've never used FS-UAE but there must be a line for "Wait for Blitter"?

Looking at Frode's example, I'd hazard a guess:

Code:

uae_waiting_blits = true

Set this to "false"

FrodeSolheim · 28 December 2020, 19:30

Quote:

Originally Posted by DamienD

Yes, you cannot have both... in WinUAE if you have "Wait for Blitter" and then select "Immediate Blitter", "Wait for Blitter" gets disabled.

I've never used FS-UAE but there must be a line for "Wait for Blitter"?

Looking at Frode's example, I'd hazard a guess:

Code:

uae_waiting_blits = true

Set this to "false"

Ah, yes, you're right. Waiting blits are actually automatically disabled, but I didn't see the warning in the dev version I'm running ATM

There is indeed an uae_waiting_blits option, so by adding both you should avoid the warning:

Code:

uae_immediate_blits = true
uae_waiting_blits = disabled

(Note that uae_waiting_blits have several valid values, and the option to turn it off is disabled)

Bladeforce · 29 December 2020, 12:40

Quote:

Originally Posted by FrodeSolheim

Ah, yes, you're right. Waiting blits are actually automatically disabled, but I didn't see the warning in the dev version I'm running ATM

There is indeed an uae_waiting_blits option, so by adding both you should avoid the warning:

Code:

uae_immediate_blits = true
uae_waiting_blits = disabled

(Note that uae_waiting_blits have several valid values, and the option to turn it off is disabled)

Worked a treat. May i thank you kind people for helping an old amiga junkie very happy!

17 April 2020, 22:30	#1
Bladeforce Registered User Join Date: Mar 2012 Location: UK Posts: 72	Dune intro very slow Hi, Just noticed the dune game intro is very slow the part where its panning out from the planets. All other games seem to be fine speed wise just dune which is odd. Is this a known problem?

14 December 2020, 16:11	#4
DamienD Banned Join Date: Aug 2005 Location: London / Sydney Age: 47 Posts: 20,420	The Dune intro is a nightmare to get working correctly / glitch free in emulation. Ok, it's WinUAE but see this thread: Dune gfx glitch From my experience, the planets moving slow is caused by having "Cycle-exact (Full)" ticket. ...and here is how the intro runs: https://streamable.com/4gwmnr Last edited by DamienD; 14 December 2020 at 16:55. Reason: Updated video, scanlines looked funny and not how I usually see them in emulation...

28 December 2020, 16:08	#11
FrodeSolheim FS-UAE Developer Join Date: Dec 2011 Location: Førde, Norway Age: 43 Posts: 4,043	Based on what FOL said about real A500, presumably the intro runs a bit slow in places simply because the game isn't coded to handle smooth animation on a stock A500 in those places. A500 cycle exact configuration of course tries to mirror real hardware. By using an A1200 model instead, you'll get more horsepower to run the intro, but I tested that and noticed some glitches (as DamienD also mentioned). Using immediate blits (as suggested in the thread linked by DamienD) seems to fix or improve that, though I haven't done thorough testing. You can enable this by adding Code: uae_immediate_blits = true in the custom configuration dialog or manually to an .fs-uae config file.

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12 December 2020, 17:45	#2
Bladeforce Registered User Join Date: Mar 2012 Location: UK Posts: 72	Can i bump this please and ask someone to try Dune and when the intro with planets comes on does it go ultra slow?

24 December 2020, 21:28	#8
Bladeforce Registered User Join Date: Mar 2012 Location: UK Posts: 72	Hello, Sorry for the late reply. Yes it is at the intro where the planet spans out. The WHDload version works fine in my OS4 install but this is just using the standard fs-uae

28 December 2020, 16:53	#12
Bladeforce Registered User Join Date: Mar 2012 Location: UK Posts: 72	Many thanks for the help Damien, Frode and FOL I have changed the config file to an A1200 and added the line "uae_immediate_blits = true" Apart from this error when starting at the bottom of the screen "Immediate blitter and waiting blits cant be enabled simultaneously" The intro now works flawlessly Thanks very much!

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