Super FX - CVS

Bent · Post by **Bent** » Mon Oct 25, 2004 8:15 pm

The rotating platforms in Yoshi's Island are correct, but there are other problems in that same world. I will type this up in the official bug topic later, so this is just a short summary. As was mentioned before, the platforms that mpve up and down have graphical glitches along the sides of them. Also, when between rooms in that level (I forget which one in particular, but it was either entering or leaving the lava room) the screen fade was orange, and it isn't supposed to be.

xamenus · Post by **xamenus** » Mon Oct 25, 2004 8:38 pm

OK, I just assumed that the rotating blocks would look better than that on a real SNES(more texture, details etc. instead of three bars put together). My mistake.

Post by **grinvader** » Mon Oct 25, 2004 8:45 pm

IceFox wrote:OK, I just assumed that the rotating blocks would look better than that on a real SNES(more texture, details etc. instead of three bars put together). My mistake.

HEY, it's not a single-colour block, so that kicked ass for the snes...

Check the deformable blocks... (you know, when you pound them, they go flat and very broad) those are uni-coloured.

blackmyst · Post by **blackmyst** » Mon Oct 25, 2004 9:07 pm

Sluggy the Unshaven was a technical highlight for me. Textures and all. ;o

Anyway, on the topic of Yoshi's Island and SFX2.....how many of the effects we find in the game do you think can actually be attributed to the SFX2 chip? You'd think the effects in Touch Fuzzy for example all look like standard SNES tricks...same with Raphael the Raven's battle. Does the chip replace/speed up some of those?

Oh and for that matter....do you think Yoshi's "morphing" effect is actually calculated, or just an animation? (There's realtime morphing in the Violinist of Hamelen....but that's just an outline, not a full sprite.)

Post by **grinvader** » Mon Oct 25, 2004 9:15 pm

blackmyst wrote:Anyway, on the topic of Yoshi's Island and SFX2.....how many of the effects we find in the game do you think can actually be attributed to the SFX2 chip?

95%

You'd think the effects in Touch Fuzzy for example all look like standard SNES tricks...same with Raphael the Raven's battle. Does the chip replace/speed up some of those?

Exactly. It's much more robust than the base 3.?? MHz CPU of the SNES. It boosts the rotation, zoom and all mode7 distortions.

Oh and for that matter....do you think Yoshi's "morphing" effect is actually calculated, or just an animation? (There's realtime morphing in the Violinist of Hamelen....but that's just an outline, not a full sprite.)

No, it's pretty obvious there's just a line-by-line sprite replacement.

blackmyst · Post by **blackmyst** » Mon Oct 25, 2004 9:51 pm

grinvader wrote:
Oh and for that matter....do you think Yoshi's "morphing" effect is actually calculated, or just an animation? (There's realtime morphing in the Violinist of Hamelen....but that's just an outline, not a full sprite.)
No, it's pretty obvious there's just a line-by-line sprite replacement.

Ah, I thought so.

When the game was just out, I always used to think it was realtime morphing. It was pretty awesome to think that my humble SNES could do such a thing.

Are you sure it's not possible though? The status screen in VoH has actual morphing in it, even though it's just the outline. And that doesn't use a 20 something mhz chip.

Though I suppose they wouldn't waste time on that when they might as well just trown in an animation. Heh.

Post by **grinvader** » Mon Oct 25, 2004 10:41 pm

Morphing an outline is possible with a snes and good code.

As it's just about storing some initial coordinates, ending coordinates, and make a linear transfer from one to the other. Then draw a line between each point to point+1 on a set frame.
[and I just checked, it seems to be exactly that]

Even I could code an outline morph engine like this. And my coding skillz are far from great.

blackmyst · Post by **blackmyst** » Mon Oct 25, 2004 11:06 pm

It's not just a simple transfer from A to B though. Try to switch around quickly between many different forms and see what sort of weird animal you can get, even if it only lasts for a second.

On second thought, even that probably works the way you described ... but it's still cool.

While bughunting, I was reminded of this:

Level designer's joke or just my mental state? ;o

Post by **grinvader** » Mon Oct 25, 2004 11:36 pm

blackmyst wrote:It's not just a simple transfer from A to B though. Try to switch around quickly between many different forms and see what sort of weird animal you can get, even if it only lasts for a second.

On second thought, even that probably works the way you described ... but it's still cool.

Simple, just set the current x and y of each point as initial status for the next morph... I keep watching each and every point's speed and direction, and it's definitely how they do it.

While bughunting, I was reminded of this:

Level designer's joke or just my mental state? ;o

The designer had to write somewhere 'BUY UNDIES' but he had no paper... so he put this shape in the game's code. When debugging, he was reminded to buy undies -> SUCCESS !!

blackmyst · Post by **blackmyst** » Tue Oct 26, 2004 1:42 am

grinvader wrote:The designer had to write somewhere 'BUY UNDIES' but he had no paper... so he put this shape in the game's code. When debugging, he was reminded to buy undies -> SUCCESS !!

I ROFLed.

Post by **Agozer** » Tue Oct 26, 2004 7:06 am

Heh. That was great. I should play Yoshi's Island more because I feel that I've been missing out a lot + those new Super FX fixes should make things better to boot.

snkcube · Post by **snkcube** » Tue Oct 26, 2004 7:16 am

Haha. Undies.

illegal eagle · Post by **illegal eagle** » Tue Oct 26, 2004 4:03 pm

blackmyst wrote:Anyway, on the topic of Yoshi's Island and SFX2.....how many of the effects we find in the game do you think can actually be attributed to the SFX2 chip?

If you open the ROM with a FX-decoder *points to sig* you'll see some graphics, for example the round block that Yoshi can push. These bitmaps are used directly by the FX chip.