hi can somebody send me the code to read in an 256x256 bmp file with the brigtness value the pixel 1,9 should fill the array world[1][9] with an float value between 1(for white) and 0(for black) (his brightness value) the array is float world[256][256] (i use nehes loadin code of the normal tuts ) thanks

t as long; // holds Temporary pixel values
v as float; // holds reinterpreted cast of t
t = bmparray[x][y].redcomponent; // load red into t
t += bmparray[x][y].greencomponent; // add green to t
t += bmparray[x][y].bluecomponent; // add blue to t
t /= 3; // average t
t /= 256; // clamps t to value between 1 and 0
v = (float)t; // cast t to float



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i dont understand this post how can i get pixelvalues and what sens has t

is it not needed to count pixels up in an 2 dimensional loop ??

i would expect the form




and now i searsch what must i write between the {} thanks



Edited by - the origin on March 12, 2002 2:52:00 PM

Why do you want the brightness value ? For a heightmap ? If so use .raw file format. Its for black and white images and it records the brightness from 0-255.

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i need the way over an bmp

because i mast do other things with the source of the heighmap
not only making the heigh

i dont like raw files

and is there a way to do this in the form i expected ?

if yes help me please

thanks