Recent Posts

61

General discussion about the Sega Saturn / Re: Transparent Shading on The Saturn

« Last post by Jorhlok on August 20, 2018, 02:21:41 am »

So, why doesn't the mesh effect create artifacts that the apple II and Atari 8 bit line used often for color (green and pink) in high-res mode?

Short answer: it did.

IIRC the original apple ii hardware is monochrome under the hood and was able to make color with composite monitors with patterns of white and black pixels. This is horizontally on a scanline.
I'm not as familiar with atari computers but high resolution modes for many computers such as 80 column mode on a commodore 128 is hardly legible on a composite monitor or tv. Thankfully you could use it with monochrome or the equivalent of s video monitors.

62

General discussion about the Sega Saturn / Re: Transparent Shading on The Saturn

« Last post by 20EnderDude20 on August 19, 2018, 06:42:27 pm »

So, why doesn't the mesh effect create artifacts that the apple II and Atari 8 bit line used often for color (green and pink) in high-res mode?

63

Project announcement / Re: Sonic Z-Treme

« Last post by XL2 on August 19, 2018, 12:07:25 pm »

As far as I remember it was an unsigned char, but I will look it up once I'm back from my vacations. But most likely is that the source audio is just bad. I just ripped the music from youtube and converted it to wav after, so it's not very good.

64

General discussion about the Sega Saturn / Re: Transparent Shading on The Saturn

« Last post by jabfg on August 19, 2018, 11:39:15 am »

SCART was a cable standard created in France that was adopted all over the Europe. It was created in the 70'S and supports bidirectional audio/video communication. It also supports RGB signal and the three types of sync( sync using the composite video, sync on Luma or pure SYNC).
All the TV in the 90's had this connector and the majority supported RGB signal ( expect the really cheap ones).
This standard was only dropped in favor of HDMI but the new TV's continue to bring the connector.
All Nintendo and Sega consoles supported the RGB through scart since the 16 bit era except (for unknown reasons) the Nintendo 64.
In the case of Sega Saturn the cable was bundled with the console and it supported RGB natively.
Japan also used a similar cable called JP21 that was physically the same but with switched signals. (See the attached diagram).
It also allows to play American /Japanese consoles in 60 hz. Because the majority of European TV s in the 90's supported 60hz in the form of PAL60 instead of NTSC (diferent type of video compression), if we use the composite cable or the almost not exitant s-video cable on these NTSC consoles the colors will be all messed up but with SCART in RGB mode, since there is no compression the image is displayed correctly.
The scart standard was only used on TV's, not on monitors except the old commodore 64/amiga ones (1084/1085 models).
I hope I helped.

65

General discussion about the Sega Saturn / Re: Transparent Shading on The Saturn

« Last post by Jorhlok on August 19, 2018, 11:37:35 am »

Is SCART basically RGB in another form factor?

I'm an american so I might have something wrong but my understanding is that SCART is a multipurpose audiovisual cable/port specification. So it carries analog video and audio and supports what is equivalent to composite, s video, component, and RGB. Not everything that uses SCART does everything and if it does you need a cable that supports it by having those pins. This is sort of like an old VGA cable that's in my drawer that only has the bare minimum of pins and wires so things like the monitor sending specs via one of the pins won't work with that cable.

66

Project announcement / Re: Sonic Z-Treme

« Last post by LackofTrack on August 19, 2018, 09:31:20 am »

I'm using SBL for the audio.
You mean only the left or right speaker is outputting cd audio?

No I mean both channels are being "squished" into the center as if the audio was mono. Also If you are using SBL I think the correct command is:

Code: [Select]

SND_SetCdDaPan(-15, 15);

67

Project announcement / Re: Sonic Z-Treme

« Last post by XL2 on August 19, 2018, 08:57:37 am »

I'm using SBL for the audio.
You mean only the left or right speaker is outputting cd audio?

68

Project announcement / Re: Sonic Z-Treme

« Last post by LackofTrack on August 19, 2018, 07:45:11 am »

Hey XL2, kind of a little late but, listening to your SAGE preview video I just realized that your CD audio is mono. I think it is because you have your slCDDAOn Command like this:

Code: [Select]

slCDDAOn(127, 127, 0, 0);

When it should look this:

Code: [Select]

slCDDAOn(127, 127, -127, 127);

Please correct me if I'm wrong though.

69

Project announcement / Re: Sonic Z-Treme

« Last post by itsstillthinking1999 on August 19, 2018, 07:32:13 am »

Cant wait!

70

Project announcement / Re: Sonic Z-Treme

« Last post by XL2 on August 19, 2018, 06:59:20 am »

Yes, you will see in 5 days.