Matrix Cubes

Catalyst · **Posted:** Fri Jun 13, 2003 11:57 pm

it uses the matrix effect
it involves cubes

give it a couple of seconds to normalize

*glaux needed*

Martin · **Posted:** Fri Jun 13, 2003 11:59 pm

Are those cubes or 6 quads? (per box)

Catalyst · **Posted:** Sat Jun 14, 2003 12:00 am

they were inteded to be cubes but two of the sides appear to be jutting out (i think it has to do with copying the texture)

Martin · **Posted:** Sat Jun 14, 2003 12:01 am

Put your name into the middle box, then output the screen to a whole bunch of bmp's, and then make it into a gif...crazy cool avatar.

Good job. I'd give you bits btw, but I don't think that you care.

Catalyst · **Posted:** Sat Jun 14, 2003 12:02 am

solved the problem, though theyre more like boxes now

reuploaded

Catalyst · **Posted:** Sat Jun 14, 2003 12:03 am

edit:...

Homer_simpson · **Posted:** Sat Jun 14, 2003 2:23 am

how do u do that changing texture stuff?!

Martin · **Posted:** Sat Jun 14, 2003 2:25 am

I think we've just been left in the dust...

Homer_simpson · **Posted:** Sat Jun 14, 2003 4:33 am

ah... nm... i just found out how... Very Happy

Martin · **Posted:** Sat Jun 14, 2003 12:12 pm

Hard? Care to share?

Homer_simpson · **Posted:** Sat Jun 14, 2003 12:17 pm

not hard...
i think he's using

code:

glCopyTexImage2D

to intialize his moving texture... (not sure =/)
am i right catalyst?

Catalyst · **Posted:** Sat Jun 14, 2003 12:20 pm

ya that what im using
i just draw out the matrix effect
grab the screen into a texture
clear the screen
draw the cubes using that texture
swap buffers

Homer_simpson · **Posted:** Sat Jun 14, 2003 1:03 pm

yes i thought so... Very Happy

but that matrix effect that your makin with the particle engine is nice... i gotto learn how to use a particle engine...

Catalyst · **Posted:** Sat Jun 14, 2003 1:16 pm

NUM_LETT needs to be defined
its the length of the letter trails

code:

float RandomNumP ()
{
return (((float)rand() / (float)(RAND_MAX)));
}

float RandomNum ()
{
return (((float)rand() / (float)(RAND_MAX))*2)-1;
}

code:

class matrixLetter
{
public:

float tX1[NUM_LETT],tX2[NUM_LETT],tY1[NUM_LETT],tY2[NUM_LETT];
bool hLight;
float x,y,z;
float xv,yv,zv;
float sizeX,sizeY;
int i;

void InitLetter (float l1,float l2,float X,float Y,float Z,float SIZE)
{

for (i=0;i<NUM_LETT;i++)
{

tX1[i]=(l1)/16;
tY1[i]=(l2+(float)i)/16;

tX2[i]=((l1+1))/16;
tY2[i]=((l2+1+(float)i))/16;
}

x=X;
y=Y;
z=Z;
sizeX=SIZE;
sizeY=SIZE*1.5;

}

void InitVect (float X,float Y,float Z)
{
xv=X;
yv=Y;
zv=Z;

}

void Reset()
{
x=RandomNum()*3;
y=RandomNum()*2+5;
z=-6;//-RandomNumP()*-5;

yv=-0.01+RandomNumP()/-100;

}

void RunLetter()
{
x+=xv;
y+=yv;
z+=zv;

if (y<-4)
{
Reset();
}

}

void DrawLetter ()
{
RunLetter();

for (i=0;i<NUM_LETT;i++)
{
glColor4f (1,1,1,(NUM_LETT-(float)i)/(float)NUM_LETT);

glTexCoord2f(tX1[i],tY2[i]);
glVertex3f (x-sizeX,y+sizeY+(sizeY*2*i),z);

glTexCoord2f(tX1[i],tY1[i]);
glVertex3f (x-sizeX,y-sizeY+(sizeY*2*i),z);

glTexCoord2f(tX2[i],tY1[i]);
glVertex3f (x+sizeX+0.021,y-sizeY+(sizeY*2*i),z);

glTexCoord2f(tX2[i],tY2[i]);
glVertex3f (x+sizeY,y+sizeY+(sizeY*2*i),z);

}

}

};

Homer_simpson · **Posted:** Sat Jun 14, 2003 8:14 pm

is that a particle engine?!

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