Conversion Capers: Rygar

[roondar]

IIRC Rygar uses a rotated 4:3 screen in the Arcade (giving it a 3:4 play field). Achieving the same ratio on the Amiga either means using the original resolution and accepting black bars, or scaling up to 320x280 (multiply both sides by 1.25) and redrawing all graphics to fit the new size.

Personally, I think 256x224 is the better option. If only because any other option either doesn't fit the screen ratio of the arcade (f.ex. showing too much of the level), or entails recreating all graphics in the game.

[DanScott]

Rygar uses a standard 4:3 screen

The 256 pixels wide on the coin-op are stretched to the full width of the screen, and the 224 pixels high are also stretched vertically IIRC... so the pixel aspect ratio is still approximately square (certainly not megastretched in the x)



Doing the amiga version at 256x224 is correct... pixel for pixel it will be accurate

[sandruzzo]

Originally Posted by Shatterhand

Dunno if it makes any difference, but I ran the game from a Gotek. I don't think it should. I had tested a previous version a few months ago and it worked.

Just out of curiosity, since I lost track in all the discussion. Is the main character done with HW sprites, or is it blitted ?

How many sprites are you using for the parallax backdrop ?

Rygar is made by bob. I'm using all the 8 sprites for parallax, and they are multiplexed one time

[Shatterhand]

Originally Posted by sandruzzo

Rygar is made by bob. I'm using all the 8 sprites for parallax, and they are multiplexed one time

Ok, that's nice. This means you can do all layers of parallax with the sun backdrop using just sprites

The sun without the mountain shadows doesn't have the same impact

[dlfrsilver]

Originally Posted by DanScott

Rygar uses a standard 4:3 screen

The 256 pixels wide on the coin-op are stretched to the full width of the screen, and the 224 pixels high are also stretched vertically IIRC... so the pixel aspect ratio is still approximately square (certainly not megastretched in the x)



Doing the amiga version at 256x224 is correct... pixel for pixel it will be accurate

Thanks

[Amigajay]

Originally Posted by DanScott

Rygar uses a standard 4:3 screen

The 256 pixels wide on the coin-op are stretched to the full width of the screen, and the 224 pixels high are also stretched vertically IIRC... so the pixel aspect ratio is still approximately square (certainly not megastretched in the x)



Doing the amiga version at 256x224 is correct... pixel for pixel it will be accurate

This is what I was trying to ask in another thread, it seems console games with low resolutions I.e snes (also 256x224) have their games stretched to fill a tv screen, can't the Amiga do the same? I know cdxl video can be doubled vertically via the copper after conversion, obviously Games would be using the copper, how does the snes do it?

[DanScott]

Originally Posted by Amigajay

This is what I was trying to ask in another thread, it seems console games with low resolutions I.e snes (also 256x224) have their games stretched to fill a tv screen, can't the Amiga do the same? I know cdxl video can be doubled vertically via the copper after conversion, obviously Games would be using the copper, how does the snes do it?

It's down to the hardware that generates the video output signal.

Unfortunately, you don't have much control over that on the Amiga, and you are stuck with 320 x resolution (or 640 in medium resolution). There is no way in hardware to scale the video output (how cool that would have been if it was possible )

[Amigajay]

Originally Posted by DanScott

It's down to the hardware that generates the video output signal.

Unfortunately, you don't have much control over that on the Amiga, and you are stuck with 320 x resolution (or 640 in medium resolution). There is no way in hardware to scale the video output (how cool that would have been if it was possible )

Ok cheers that's all i wanted to know.

Yes it would be very good to have many more full screen games, annoying especially nowadays when games get compared, even though the Amiga is often has the best graphics and best sound and higher resolution, all the kids and uneducated reviewers say youtube is, "but the Megadrive/Snes one is full screen and the Amiga has massive borders it must be worse!"

[sandruzzo]

Originally Posted by Shatterhand

Ok, that's nice. This means you can do all layers of parallax with the sun backdrop using just sprites

The sun without the mountain shadows doesn't have the same impact

We'll do our best to have it!

[sandruzzo]

Originally Posted by Amigajay

This is what I was trying to ask in another thread, it seems console games with low resolutions I.e snes (also 256x224) have their games stretched to fill a tv screen, can't the Amiga do the same? I know cdxl video can be doubled vertically via the copper after conversion, obviously Games would be using the copper, how does the snes do it?

That's mean: if we use the same respolution for Amigas' ports we can have a lot of colors on screen and 50 hz games

[Amigajay]

Originally Posted by sandruzzo

That's mean: if we use the same respolution for Amigas' ports we can have a lot of colors on screen and 50 hz games

Yeah but they will still have borders, even old Atari systems with resolutions in the 100's fill the screen because the hardware can stretch to fill the screen, i think it was a big oversight not to have this, especially on the gaming models A500, A1200 etc with TV modulators.

[sandruzzo]

Originally Posted by Amigajay

Yeah but they will still have borders, even old Atari systems with resolutions in the 100's fill the screen because the hardware can stretch to fill the screen, i think it was a big oversight not to have this, especially on the gaming models A500, A1200 etc with TV modulators.

We have this, we have to work with our powerfull Amiga.

[DanScott]

I wonder if a device could be made that sits between the modulator and the TV, allowing the user to stretch the vertical and horizontal sizes?

[sandruzzo]

Added New version with Head at the end of time, with music! Some bugs gone

[Tigerskunk]

Originally Posted by sandruzzo

Added New version with Head at the end of time, with music! Some bugs gone

Good job!

[saimon69]

two notes on the head aka death:
countdown in the arcade starts 10 seconds before 0 and (i guess is in progress) death has a changing sinusoidal pattern; beside that i have the feeling that the collision map of the floor is misplaced, can you check it?

[sandruzzo]

Originally Posted by saimon69

two notes on the head aka death:
countdown in the arcade starts 10 seconds before 0 and (i guess is in progress) death has a changing sinusoidal pattern; beside that i have the feeling that the collision map of the floor is misplaced, can you check it?

Collision map is of the floor is ok, Just rygar position. i have to start countdown only for a few second before 0, because music is too short

[dlfrsilver]

what are the news on rygar lately Sandruzzo ?

[DamienD]

Originally Posted by sandruzzo

Added New version with Head at the end of time, with music! Some bugs gone

Nice work sandruzzo, I see that you've fixed the "running, jump, move back / forth in the air, change direction"

Here are a few small things that I'm sure you're aware of

... When entering the end of level room, after moving the 1st statue Rygar is too far right so obvious gap. When exiting after moving the 2nd statue Rygar is perfect:



... When in the end of level room Rygar probably needs to move a fraction right so that equal amounts of the left / right statues are visible:



... The bug with standing on a branch in mid air is still there.

[saimon69]

Ah, forgot: when death appears parallax background in the arcade fade to black - is technically feasible for us too?