Difference between revisions of "Krita/Manual/Blendingmodes"

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Revision as of 19:23, 13 June 2014

Contents

Blending Modes

Blending modes are a little difficult to explain. Basically, when one layer is above the other, the computer uses a bit of programming to decide how the combination of both layers will look.

Blending modes can not just apply to Layers, but also to individual strokes.

Normal

Let's start explaining with the Normal Blending mode: As you may have guessed this is the default Blending mode for all layers.

In this mode, the computer checks on the upper layer how transparent a pixel is, which colour it is, and then mixes the colour of the upper layer with the lower layer measured by transparency.

Arithmetic

These blending modes are based on simple maths.

Addition

Adds the numerical values of two colours together:

Yellow(1,1,0)+Blue(0,0,1)=White(1,1,1)

Red(1,0,0)+Grey(0.5,0.5,0.5)=Pink(1,0.5,0.5)

Divide

Divides the numerical value from the lower color by the upper color.


Inverse Substract

This, unlike regular substract, will consider 0,0,0 the lowest number.

So black(0,0,0)-grey(0.5,0.5,0.5) doesn't become grey, but stays black.

Multiply

Multiplies the two colors with each other, but does not go beyond the upper limit.

This is often used to color in a black and white lineart. One puts the black and white lineart on top, and sets the layer to 'Multiply', and then draw in color on a layer beneath. Multiply will all the colour to go through.

White(1,1,1)xWhite(1,1,1)=White(1,1,1) White(1,1,1)xGrey(0.5,0.5,0.5)=Grey(0.5,0.5,0.5) Grey(0.5,0.5,0.5)xGrey(0.5,0.5,0.5)=Dark grey(0.25,0.25,0.25)

Substract

White(1,1,1)-White(1,1,1)=Black(0,0,0) White(1,1,1)-Grey(0.5,0.5,0.5)=Grey(0.5,0.5,0.5) Grey(0.5,0.5,0.5)-Grey(0.5,0.5,0.5)=Black(0,0,0)

Darken

Burn

Darken

Gamma Dark

Linear Burn

HSI

HSI is a color coordinate system, using Hue, Saturation and Intensity to catagorise a color. Hue is roughly the wavelength, whether the colour is red, yellow, green, cyan, blue or purple. It is measure in 360°, with 0 being red. Saturation is the measurement of how close a color is to grey. Intensity, in this case is the tone of the color. What makes intensity special is that it recognises Yellow(rgb:1,1,0) having a higher combined rgb value than blue(rgb:0,0,1). This is a non-linear tone dimension, which means it's gamma-corrected.

Color HSI

This takes the Intensity of the colours on the lower layer, and combines them with the Saturation and Hue of the upper pixels.

Decrease Intensity

Decrease Saturation HSI

Hue HSI

Increase Intensity

Increase Saturation HSI

Intensity

Saturation HSI

HSL

HSL is also a color coordinate system. It describes colors in Hue, Saturation and Lightness. Lightness specifically puts both yellow(rgb:1,1,0), blue(rgb:0,0,1) and middle grey(rgb:0.5,0.5,0.5) at the same lightness(0.5).

Color HSL

This takes the Lightness of the colours on the lower layer, and combines them with the Saturation and Hue of the upper pixels.

Decrease Lightness

Decrease Saturation HSL

Hue HSL

Increase Intensity

Increase Saturation HSL

Lightness

Saturation HSL

HSV

HSV, occasionally called HSB, is a color coordinate system. It measures colors in Hue, Saturation, and Value(also called Brightness). Value or Brightness specifically reffers to strength at which the pixel-lights on your monitor have to shine. It sets Yellow(rgb:1,1,0), Blue(rgb:0,0,1) and White(rgb:1,1,0) at the same Value(100%)

Color HSV

This takes the Value of the colours on the lower layer, and combines them with the Saturation and Hue of the upper pixels.

Decrease Value

Decrease Saturation HSV

Hue HSV

Increase Value

Increase Saturation HSV

Value

Saturation HSV

HSY

HSY is a color coordinate system. It catagorises colors in Hue, Saturation and Luminosity. Luminosity is based on scientific studies of how much light a color reflects in real-life. Unlike the others it's linear, and while like intensity it acknowledges that Yellow(rgb:1,1,0) is light than blue(rgb:0,0,1), it also acknowledges that Yellow(rgb:1,1,0) is bright than Cyan(rgb(0,0,1), based on these studies.

Color HSY

This takes the Luminosity of the colours on the lower layer, and combines them with the Saturation and Hue of the upper pixels.

Decrease Luminosity

Decrease Saturation HSY

Hue HSY

Increase Luminosity

Increase Saturation HSY

Luminosity

Saturation HSY

Lighten

Blending modes that lighten the image.

Color Dodge

Gamma Light

Hard Light

Lighten

Linear Dodge

Linear Light

Pin Light

Screen

Soft Light(Photoshop)

Soft Light (svg)

Vivid Light

Misc

Bumpmap

Copy

Copy Red

Copy Green

Copy Blue

Dissolve

Mix

Allanon

Alpha Darken

Behind

Erase

Geometric Mean

Grain Extract

Grain Merge

Hard Mix

Normal

The standard blending mode. This looks at how transparant a given pixel is, and mixes the upper layer with the lower according to that.

Overlay

Parallel

Negative

These are all blending modes which seem to make the image go negative.

Additive Substractive

Arcus Tangent

Difference

Equivelance

Exclusion


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