Draws a single pixel in a given colour.
draw_point_colour(x, y, col1);
||The x coordinate of the point.
||The y coordinate of the point.
||The colour of the point.
With this function you can draw a single pixel anywhere on the
screen with a colour that you define. The colour settings will
over-ride the base colour set with the function draw_set_colour.
NOTE: If you are wanting to draw a shape
using a shader, you should be aware that most shaders expect the
following inputs: vertex, texture, Colour. However, when using this
function, only vertex and colour data are being passed in, and so
the shader may not draw anything (or draw something but not
correctly). If you need to draw shapes in this way then the shader
should be customised with this in mind.
draw_point_colour(50, 50, c_red);
This would draw a red pixel at (50,50).
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