Very nice and smooth ~
I wonder if it works like one part of Overdrive2 does...
Search found 2453 matches
- Sat Apr 12, 2025 8:32 pm
- Forum: Demos
- Topic: chaekopan by limpninja (demoscene)
- Replies: 1
- Views: 3782
- Mon Mar 10, 2025 3:50 pm
- Forum: Super 32X
- Topic: 32X colors
- Replies: 3
- Views: 5914
Re: 32X colors
There is one more thing to consider though which is RGB vs CVBS. The latter is subject to variety of errors arising in the analog tolerances during the conversion process. Phase shifts cause hue changes, especially with NTSC and luma itself is also subject to tolerances in the resistors in the chips ...
- Sun Mar 09, 2025 9:57 pm
- Forum: Super 32X
- Topic: 32X colors
- Replies: 3
- Views: 5914
Re: 32X colors
I did measurements on 32X a while ago, using a test ROM ChillyWilly made, but I have had no luck locating it on this forum but it must be somewhere around here.
32Xvideo0.jpg
My measurements found that the ramps are indeed linear and that blue color is just about 1x step lower in absolute ...
32Xvideo0.jpg
My measurements found that the ramps are indeed linear and that blue color is just about 1x step lower in absolute ...
- Tue Feb 25, 2025 8:43 am
- Forum: Super 32X
- Topic: 32X and Genesis frame alignment in H32 mode
- Replies: 1
- Views: 2996
Re: 32X and Genesis frame alignment in H32 mode
1) The problem is that MD uses a hack to make H320 timings match those of H256 (sorry, I don't like the H32 and H40 names). The way it is done is by generating an external pixel clock (EDCLK) where some pixels are slowed down during Hsync period. It is why you set bit 7 in VDP register $0C when ...
- Thu Feb 13, 2025 10:57 pm
- Forum: Megadrive/Genesis
- Topic: Increased Sprite Plane to a larger range than 512 (horizontal).
- Replies: 4
- Views: 10970
Re: Increased Sprite Plane to a larger range than 512 (horizontal).
No, this is all fixed in hardware and cannot be changed in any way.
- Mon Jan 20, 2025 8:04 pm
- Forum: Megadrive/Genesis
- Topic: Increased Sprite Plane to a larger range than 512 (horizontal).
- Replies: 4
- Views: 10970
Re: Increased Sprite Plane to a larger range than 512 (horizontal).
It is not possible to extend the sprite area wider, you have to manually cull out stuff that's off screen to prevent them from becoming visible due to coordinate wraparound etc.
- Thu Jan 16, 2025 3:18 pm
- Forum: Announcement
- Topic: Forum update this week
- Replies: 8
- Views: 14470
Re: Forum update this week
I was prepared to see a totally different forum, but this is a positive surprise still. It is nice things seem to have gone smoothly ~
- Wed Jan 08, 2025 3:16 am
- Forum: Announcement
- Topic: Forum update this week
- Replies: 8
- Views: 14470
Re: Forum update this week
Thänk you for the heads up ~
- Sun Jan 05, 2025 12:42 am
- Forum: Hardware
- Topic: HDD (or flash) instead of a CD, questions...
- Replies: 158
- Views: 276280
Re: HDD (or flash) instead of a CD, questions...
You primarly need level shifters to protect the 3.3V device from getting 5V on its pins, which will ultimately damage the 3.3V device.
If you have a point to point 3.3V output going into a 5V input that has its High level treshold below 3.3V, it will work and there's no need for any extra parts and ...
If you have a point to point 3.3V output going into a 5V input that has its High level treshold below 3.3V, it will work and there's no need for any extra parts and ...
- Thu Jun 13, 2024 10:32 pm
- Forum: Megadrive/Genesis
- Topic: Cart Design Questions
- Replies: 74
- Views: 216026
Re: Cart Design Questions
This is the right way to do it, there shouldn't be any problems at all.
- Thu May 16, 2024 12:48 pm
- Forum: Announcement
- Topic: The world has changed
- Replies: 6
- Views: 20571
Re: The world has changed
It has definitely gone quiet over the years...
But it has certainly been a ride, I was still a teenager when I first got here, and I'm gonna be 35 in November ! It seems I joined 2006 december, in not such a long time it'll be 20 years :shock:
Much of the communications have moved to places like ...
But it has certainly been a ride, I was still a teenager when I first got here, and I'm gonna be 35 in November ! It seems I joined 2006 december, in not such a long time it'll be 20 years :shock:
Much of the communications have moved to places like ...
- Thu May 16, 2024 12:42 pm
- Forum: Megadrive/Genesis
- Topic: Script to convert RGB Images to Mega Drive "format"
- Replies: 6
- Views: 8763
Re: Script to convert RGB Images to Mega Drive "format"
This is impressive, even without flipping ! I imagine the forest example could benefit a lot from that.
- Sat Jul 29, 2023 6:08 pm
- Forum: Megadrive/Genesis
- Topic: Regarding the 480i mode on Genesis. . . .
- Replies: 23
- Views: 286032
Re: Regarding the 480i mode on Genesis. . . .
It is seen in anything that moves horiozntally. Vertically you will get some artifacts too depending on scroll/movement speed as there will be whole lines of GFX missing every other frame and it will be seen among any kind of horizontal line patterns most particularly
- Sat Jul 01, 2023 9:51 am
- Forum: Video Display Processor
- Topic: DMA during HBlank ...
- Replies: 2
- Views: 28943
Re: DMA during HBlank ...
There are no access slots in line blanking period, because VDP is busy rendering sprites which uses up all the VRAM bandwidth in that time. You can turn off rendering for the duration and get few tens of bytes worth of VRAM bandwidth but the cost is no sprites on the next line and some garbage ...
- Sat Jul 01, 2023 9:43 am
- Forum: Video Display Processor
- Topic: Swapping in/out background/sprite tiles
- Replies: 9
- Views: 78908
Re: Swapping in/out background/sprite tiles
Game does its logic, which probably finishes before Active scan is finished, then it waits until it does finish and Passive scan starts and does all the VRAM etc. updates, after than it waits for Passive scan to end and Active to start and the whole process repeats. That is the basic structure of ...