Sonic and Sega Retro Message Board: Hodgy - Viewing Profile - Sonic and Sega Retro Message Board

Hey. Im starting up a game project soon and have been mulling over ideas for making a twin stick shooter similar to super stardust HD and Nano Assult Neo. Only im trying to brainstorm ideas on how the terrain traversal in Nano Assult works, where your ship traverses around a non regular shape (See here)

Now I believe I can understand how super stardust HD does it as you only ever traverse a perfect sphere, it would be a simple case of rotating all the objects on the x,y,z axis around the origin of the world.

But the only way I can think of traversing an irregular shape like in nano assult neo would be to use a lower poly collision mesh and have all objects raycast below themselves till they hit the collision mesh, then get the 3 vertex normals of the polygon that the raycast hits and calculate a weighted average normal depending on where the raycast hits the polygon and the position of the object will be set along that vector. But this sounds like a horribly slow and brute-force approach as I could potentially have say 10 objects (one player 9 enemies) then say each thing has fired 10 bullets each) so now I have 100 objects that need this raycast for postitioning and say my collision mesh is 500 polys, thats potentially 50k raycast collision checks. unless im going about my raycasting incorrectly.

Just wandering if any techies here have other solutions other than my raycasting?

I recently bought a new GTX560ti but when I connect it to my hdtv over hdmi everything on the screen is slightly blurry (this makes text and images look horrible) a friend forwarded me to this page which shows a fix to the problem. So I change the .inf file as the guide says and install the drivers and the picture quality is good ! YAY!

but now I no longer get audio through HDMI!

so I have a toss up between sound having sound but bad image quality or great image quality and no sound!

does anyone know of an alternate fix for the video drivers to prevent the bad image quality while keeping the sound working?

after about 20 minuites of playing on my ps3 it's fan speeds up so much that it produces the same amount of noise as a hair dryer :/
this makes enjoying films impossible and it puts me off playing games.

does anyone have any ideas as to how to fix this?

I could phone sony but then theywould charge me £100+ for a repair.
the only other thing I can think of is replacing the thermal paste :/

As the title says this is a game of pong that I have programmed for a PIC16F84 that is used in a circuit I have designed and put together for my electronics project



as you can see from the circuit diagram below it is fairly simple.
to make the LED's light up in the dot matrix display 6 output pins are connected to 2 BCD to decimal encoders one of these handles the X axis the other handles the Y axis the outputs of one of these then nave to be inverted so that the signals work with the dot matrix display.
The socring system uses by counting the pulses from 2 pins from the PIC chip using up counters that reset at 10 the outuput from these go to a BCD to 7-seg dencoder wich then goes to the 7-segment display. there are 2 of these one for each player.
the circuits clock is generated from a 42pf capacitor and a 100Kohm resistor (contrary to what the diagram says this is what I ended up using)to generate a clockspeed of 238Khz (238095Hz)
the inputs were handled with simple push switches, 2 for each player and a reset button.
Below is the circuit diagram and a picture of the circuit made on protoboard.



(the pic chip was removed from this picture as it was in its testing board while I was programming and debugging my program.)

The source for the program I wrote for this chip is linked below:
http://www.box.net/shared/sqfrdianyl

It is written in PIC assembler and I know it isnt perfect, I wrote it in a week after the first version of my program wouldn't work for unknown reasons O_o but it got the job done and worked well enough to earn me an A in the module (37/40) :D

In case you haven't noticed, Soleil is one of my favourite games on the Megadrive so I have decided to see what I can get out of the ROM :P

The version of the ROM I'm using can be found here http://www.box.net/shared/gn2v7t7xjm

Now I have done a little prodding around with lots of help from Jorge who suggested that I use Gens so I can use the debug tools to see what was going on, he pointed me in the direction of the bank register for the Z80 to find the music, this register displays 0x001F0000 and 0x001D8000 both of these memory locations have a lot of what seems to be ROM padding before them.

But changing the bits at these locations doesn't seem to do anything.

I will be mainly using this thread to log my findings but please post suggestions if you want to

looks like this topic is going to help me : http://forums.sonicretro.org/index.php?showtopic=9785

Thanks Andlabs for pointing me in the right direction