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Wed, 13 Nov 2019 03:15:26 . . . . SyneRyder [First function definition]


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Added:
= t3getr =

== Syntax ==

int t3getr(int d, int m, int z)

== Arguments ==

:d

::An integer value for the 'direction' of a pixel.

:m

::An integer value for the 'magnitude' of a pixel.

:z

::The image channel of the pixel to return (eg 0 for red, 1 for green, 2 for blue when in RGB mode)

== Return ==

The value of the pixel channel z at polar coordinates [d,m] in the third t-buffer.

== Description ==

Pixels are usually addressed by their cartesian coordinates [x,y], but FilterMeister also allows the use of polar coordinates. Polar coordinates are expressed as [d,m], where 'd' represents the 'direction' to the pixel from the image's center point, and 'm' is the 'magnitude' of the distance from the center. The t3getr() function takes a pair of polar coordinates as arguments, and returns the pixel value in channel z at those co-ordinates in the third t buffer.

== See Also ==

t3setr, pgetr, (pgetr16)?, c2d, c2m, r2x, r2y