🚀 go-pugleaf

I am new in fractals, but I am trying to learn about it by making my own 
pictures. I am making a recursive function that is suppost to draw the 
plasma picture. The functions get a rectangle and divides this rectangel 
into four "simmular" rectangels inside the first, and so on. My problem now 
is how to calculate the colours. I know that the colours (of the four 
corners) depends uppon a random value, and the "mother" rectangle, but HOW 
does it depend? I also know that when the rectangle is big (at the start of 
recursion), then the colour depends more of the random than of the colours 
of the "mother" rectangle.

The function that I have made is short and easy, and I'll explain what the 
variables is here:

(x1,y1) Upper left corner of the rectangle
(x2,y2) Lower rigt corner of the rectangle
fov   Colour to upper left corner
foh   Colour to upper right corner
fnv   Colour to lower left corner
fnh   Colour to lower right corner

Her is the function :

void plasma(int x1,int y1,int x2,int y2,
	    int fov,int foh,int fnv,int fnh)

{	
	/*?????? Calculate the colours (fov,foh,fnv and fng) ?????????*/

	if (y2>y1+1)	
	{  plasma(x1,y1,((x1+x2)>>1),((y1+y2)>>1),fov,foh,fnv,fnh);	
	   plasma(((x1+x2)>>1),y1,x2,((y1+y2)>>1),fov,foh,fnv,fnh);	   
	   plasma(((x1+x2)>>1),((y1+y2)>>1),x2,y2,fov,foh,fnv,fnh);	   
	   plasma(x1,((y1+y2)>>1),((x1+x2)>>1),y2,fov,foh,fnv,fnh);	
	}   	
	else	
	{  putpixel(x1,y1,fov);		
	   putpixel(x2,y1,foh);		
	   putpixel(x1,y2,fnv);
           putpixel(x2,y2,fnh);
	}


I dont know if this is the kind of questions that peopel ask here, but 
anyway I will be greatfull for all the help I gets.

Trond Robert Johansen
DNORT@GRIBB.HSR.NO  (Internett)