Code:

PImage one,two;
void setup(){
size(640,480,P3D);
one = loadImage("import (0).jpg");
two = loadImage("import (1).jpg");
}
void draw(){
background(one);
blend(two,0,0,two.width,two.height,0,0,one.width,one.height,BLEND);
}
 

If I use any other mode than BLEND it works, this is really annoying because I need to do some image blending. Am I typing this in wrong or what? All blend seems to do in BLEND mode is write over the old image, regardless of what drawing mode I use (I need to use it in OPENGL, the almighty turbo mode).

Update: I'm using this code to bypass the lack of a functioning blend() function:
Code:

PImage blendd(PImage one, PImage two){
for (int iy = 0; iy < one.height; iy++){
for (int ix = 0; ix < one.width; ix++){
color c1 = one.pixels[ix + iy * one.width];
color c2 = two.pixels[ix + iy * two.width];
int  r1=c1>>16&0xff;
int  g1=c1>>8&0xff;
int  b1=c1&0xff;
int  r2=c2>>16&0xff;
int  g2=c2>>8&0xff;
int  b2=c2&0xff;
one.pixels[ix + iy * one.width] = color ((r1+r2)>>1,(g1+g2)>>1,(b1+b2)>>1);
}
}
one.updatePixels();
return one;
}
 

It doesn't work with open gl which I can live with since I'm rendering frames at a time with this one. Still doesn't explain why blend() doesn't work with BLEND though.