is that so hard?
Starting with discrete RGB leds, you are looking at 100 RGB leds, 300 resistors, and 300 I/O pins to drive them. The leds and resistors are straightforward enough. 300 I/O pins is a little more involved. The Arduino has 20. The Mega still only 69. You will need some port expanders like the MCP23017. You can chain up to 8 of these on an i2c bus for 128 pins. Using 'softI2C, you can create multiple i@c busses to get beyond that.
There is no easy answer to your question
If you need things like, coding for a simple project that is less than 100 lines of code, I might just type it up and post it here. What you need is around 300 lines of code. Nobody in their right mind will give you an exact code, since you don't say how things will happen exactly (your million dollar secret that everyone is going to steal). Nothing was said about how these LEDs will be wired, critical to coding. You are not just asking for a program, you are asking the whole thing. There is nothing simple about this idea you have. If you want some paid help, post on the gigs and collaborations board and pick someone you can trust. Lefty spelled out clearly what free help gets you. If I were Massimo, I'd be unwilling to help. There are plenty of people with their big ideas asking him I suppose so what's so different with your case?What you need is paid help with NDA.
not asking for everything.. i just want to have some kind of schematic that's good for my project, show me the exact parts and how many i need.. show me some kind of exact coding.. yes 100 leds is a lot, but if i were shown say 10 i could do the rest.. give me some real help with my project... i mean really
300 resistors, and 300 I/O pins