Using lenses with objects

Lenses contain creative effects that let you change the appearance of an object without actually changing the object.

In this section, you’ll learn about

•applying lenses

•editing lenses

Applying lenses

Lenses change how the object area beneath the lens appears, not the actual properties and attributes of the objects. You can apply lenses to any vector object, such as a rectangle, ellipse, closed path, or polygon. You can also change the appearance of artistic text and bitmaps. When you apply a lens over a vector object, the lens itself becomes a vector image. Likewise, if the lens is placed over a bitmap, the lens also becomes a bitmap.

After you apply a lens, you can copy it and use it with another object.

The lens types applied to the original (far left): (left to right) Heat map,

Magnify, and a Custom color map

CorelDRAW: Using lenses with objects

189

The following are the types of lenses you can apply to objects.

Lens	Description
Brighten	Lets you brighten and darken object areas
	and set the rate of the brightness and
	darkness
Color add	Lets you simulate an additive light model.
	The colors of the objects beneath the lens are
	added to the color of the lens as if you were
	mixing colors of light. You can choose the
	color and the amount of color you want to
	add.
Color limit	Lets you view an object area with only black
	and the lens color showing through. For
	example, if you place a green color limit lens
	over a bitmap, all colors except green and
	black are filtered out in the lens area.
Custom color map	Lets you change all the colors of the object
	area beneath the lens to a color ranging
	between two colors you specify. You can
	choose the range’s start and end colors and
	the progression between the two colors. The
	progression can follow a direct, forward, or
	reverse route through the color spectrum.
Fish eye	Lets you distort, magnify, or shrink the
	objects beneath the lens, according to the
	percentage value you specify
Heat map	Lets you create the effect of an infrared
	image by mimicking the heat levels of colors
	in object areas beneath the lens
Invert	Lets you change the colors beneath the lens
	to their complementary CMYK colors.
	Complementary colors are colors that are
	opposite one another on the color wheel.

190	CorelDRAW Graphics Suite 12 User Guide

Lens	Description
Magnify	Lets you magnify an area on an object by an
	amount that you specify. The magnify lens
	overrides the original object’s fill, making
	the object look transparent.
Tinted grayscale	Lets you change the colors of object areas
	beneath the lens to their grayscale
	equivalents. Tinted grayscale lenses are
	particularly effective for creating sepia-tone
	effects.
Transparency	Lets you make an object look like a piece of
	tinted film or colored glass
Wireframe	Lets you display the object area beneath the
	lens with the outline or fill color you choose.
	For example, if you set red for the outline
	and blue for the fill, all areas beneath the
	lens appear to have red outlines and blue
	fills.

To apply a lens

1Select an object.

2Click Effects ` Lens.

3Choose a lens type from the list box in the Lens docker.

4Specify the settings you want.

You cannot apply the lens effect directly to linked groups such as contoured objects, beveled objects, extruded objects, drop shadows, paragraph text or objects created with the Artistic media tool .

You can preview the different types of lenses in real-time before auto-applying one to a drawing by clicking the Lock button and then choosing a lens and settings to preview. When you find the lens you want to use, click the Lock button again, and click Apply.

CorelDRAW: Using lenses with objects

191