NAME

image_set_txcos_default - Revert to the default set of texture mapping coordinates.

SYNOPSIS

nil
image_set_txcos_default( vid, mirror )

DESCRIPTION

The engine, by default, manages texture coordinates for video objects. In some rare instances however, the developer may want to hand-tune these in the pre-rendering stages rather than modifying the coordinates in a shader. To revert back to the default behavior, this function can be used. If mirror is set to a non-zero integer, the mapping generate will be flipped along the Y axis to compensate for the arcan coordinate system having origo in the upper left corner whileas Open GL uses the lower left.

EXAMPLE

function image_set_txcos_default0()
      a = random_surface(64, 64);
      b = null_suface(32, 32);
      image_set_txcos(a, {0.1, 0.5, 0.2, 0.4, 0.8, 0.2, 0.6, 0.7});
      show_image({a, b});
      image_sharestorage(a, b);
      image_set_txcos_default(b);
end

NAME

SYNOPSIS

DESCRIPTION

EXAMPLE

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