History of t4set

Requires FM 1.0 Beta 8.5 (Nov 2007) or newer

== Syntax ==

void t4set(int x, int y, int z, int v)

== Arguments ==

:x

::An integer pixel x-coordinate in the fourth tile buffer.

:y

::An integer pixel y-coordinate in the fourth tile buffer.

:z

::An integer channel number in the range 0 to 3.

:v

::An integer value to be set for channel 'z', in the range 0 to 255.

== Description ==

This function sets the value of one channel for a pixel in the fourth tile buffer; the pixel is at coordinates [x,y], and the channel to be set is given by 'z' (0 = red, 1 = green, 2 = blue, and 3 = alpha).

== Example ==

<code>

%ffp

ForEveryTile:

for (y=y_start; y<y_end; ++y) {

for (x=x_start; x<x_end; ++x) {

for (z=0; z<Z; ++z) {

// set all pixels white

t4set(x, y, z, 255);

}

}

}

return true;

</code>

== See Also ==

pset, tset, tget, t4get