I stole bungie code.

[iBotPeaches]

float ComputeESM( float2 vShadowMapUVs, float fReceiverDepth,
float fCascadeIndex )
{
// Filtered look up using mip mapping
float fOccluderExponential = tCascadeShadowMaps.Sample( 
sShadowLinearClamp, 
float3(vShadowMapUVs,fCascadeIndex)).r;
float fReceiverExponential = exp( -fESMExponentialMultiplier * 
fReceiverDepth );
float fESMShadowTest = fOccluderExponential * fReceiverExponential;
return saturate(fESMShadowTest);
}

 

 

Just kidding. Was in the weekly update

[ixGAMEOVERxixx]

What does it do? o.O

[StevenSVE♥]

something to do with lighting research at Bungie Edited October 3, 2009 by StevenSVE♥

[Lockon]

to do with the 7 steps to world domination

[BTKC124]

Probley

[Dataanti]

?

[Rogue Modder]

Soje of the new code bungie is useing in the game for better lighting. can't you tell?

[Dataanti]

um it looks a lot like java / processing.....

 

float sinLUT[];
float cosLUT[];
float SINCOS_PRECISION=1.0;
int SINCOS_LENGTH= int((360.0/SINCOS_PRECISION));


boolean dosave=false;
int num;
float pt[];
int style[];


void setup() {
size(600, 600, OPENGL);
frameRate(24);
background(255);


sinLUT=new float[sINCOS_LENGTH];
cosLUT=new float[sINCOS_LENGTH];
for (int i = 0; i < SINCOS_LENGTH; i++) {
sinLUT[i]= (float)Math.sin(i*DEG_TO_RAD*SINCOS_PRECISION);
cosLUT[i]= (float)Math.cos(i*DEG_TO_RAD*SINCOS_PRECISION);
}

num = 150;
pt = new float[6*num];
style = new int[2*num];


int index=0;
float prob;
for (int i=0; i<num; i++) {
pt[index++] = random(PI*2); 
pt[index++] = random(PI*2); 

pt[index++] = random(60,80); 
if(random(100)>90) pt[index]=(int)random(8,27)*10;

pt[index++] = int(random(2,50)*5); 

pt[index++] = random(4,32); 
if(random(100)>90) pt[index]=random(40,60); 
pt[index++] = radians(random(5,30))/5; 


prob = random(100);
if(prob<30) style[i*2]=colorBlended(random(1), 255,0,100, 255,0,0, 210);
else if(prob<70) style[i*2]=colorBlended(random(1), 0,153,255, 170,225,255, 210);
else if(prob<90) style[i*2]=colorBlended(random(1), 200,255,0, 150,255,0, 210);
else style[i*2]=color(255,255,255, 220);

if(prob<50) style[i*2]=colorBlended(random(1), 200,255,0, 50,120,0, 210);
else if(prob<90) style[i*2]=colorBlended(random(1), 255,100,0, 255,255,0, 210);
else style[i*2]=color(255,255,255, 220);

style[i*2+1]=(int)(random(100))%3;
}
}

void draw() {

if(dosave) {
PGraphicsPDF pdf = (PGraphicsPDF)beginRaw(PDF, "pdf_complex_out.pdf"); 

pdf.strokeJoin(MITER);
pdf.strokeCap(SQUARE);
pdf.fill(0);
pdf.noStroke();
pdf.rect(0,0, width,height);
}

background(0);

int index=0;
translate(width/2,height/2,0);
rotateX(PI/6);
rotateY(PI/6);

for (int i=0; i<num; i++) {
pushMatrix();

rotateX(pt[index++]);
rotateY(pt[index++]);

if(style[i*2+1]==0) {
stroke(style[i*2]);
noFill();
strokeWeight(1);
arcLine(0,0, pt[index++],pt[index++],pt[index++]);
}
else if(style[i*2+1]==1) {
fill(style[i*2]);
noStroke();
arcLineBars(0,0, pt[index++],pt[index++],pt[index++]);
}
else {
fill(style[i*2]);
noStroke();
arc(0,0, pt[index++],pt[index++],pt[index++]);
}


pt[index-5]+=pt[index]/10;
pt[index-4]+=pt[index++]/20;

popMatrix();
}

if(dosave) {
endRaw();
dosave=false;
}
}



public int colorBlended(float fract,
float r, float g, float b,
float r2, float g2, float b2, float a) {

r2 = (r2 - r);
g2 = (g2 - g);
b2 = (b2 - B);
return color(r + r2 * fract, g + g2 * fract, b + b2 * fract, a);
}


public void arcLine(float x,float y,float deg,float rad,float w) {
int a=(int)(min (deg/SINCOS_PRECISION,SINCOS_LENGTH-1));
int numlines=(int)(w/2);

for (int j=0; j<numlines; j++) {
beginShape();
for (int i=0; i<a; i++) { 
vertex(cosLUT[i]*rad+x,sinLUT[i]*rad+y);
}
endShape();
rad += 2;
}
}


public void arcLineBars(float x,float y,float deg,float rad,float w) {
int a = int((min (deg/SINCOS_PRECISION,SINCOS_LENGTH-1)));
a /= 4;

beginShape(QUADS);
for (int i=0; i<a; i+=4) {
vertex(cosLUT[i]*(rad)+x,sinLUT[i]*(rad)+y);
vertex(cosLUT[i]*(rad+w)+x,sinLUT[i]*(rad+w)+y);
vertex(cosLUT[i+2]*(rad+w)+x,sinLUT[i+2]*(rad+w)+y);
vertex(cosLUT[i+2]*(rad)+x,sinLUT[i+2]*(rad)+y);
}
endShape();
}


public void arc(float x,float y,float deg,float rad,float w) {
int a = int(min (deg/SINCOS_PRECISION,SINCOS_LENGTH-1));
beginShape(QUAD_STRIP);
for (int i = 0; i < a; i++) {
vertex(cosLUT[i]*(rad)+x,sinLUT[i]*(rad)+y);
vertex(cosLUT[i]*(rad+w)+x,sinLUT[i]*(rad+w)+y);
}
endShape();
}

void keyPressed() {
if (key == 's') { 
dosave=true;
}
}

void mouseReleased() {
background(255);
}

 

this stuff

Edited October 4, 2009 by Dataanti