中文

Pigment
The setting of pigment is important in Pure ink in order to paint as you wish. Pigment does not mean color only. It is an integration of 1. pigment wetness, 2. brush dryness, and 3. color, and they are controlled through different tools as shown in this figure.

Pigment wetness is the amount of water to dilute the pigment. It affects the concentration and thus the opacity of the pigment. Besides, dilute pigment diffuses more than the concentrated pigment. Brush dryness represents the amount of pigment carried by the brush. It affects the continuity of strokes but not the concentration (and thus opacity) of pigment. Color determines the color value. Light colors are less opaque than dark colors.

This table summarizes the combinations of these three aspects for different effects. The combination in the first row is particularly useful for pigment overlapping.



Wet pigment can diffuse. To make the diffusion nice, set the brush dryness and/or the wetness of the foreground and background pigment with a certain difference.



The wetness value of pigment determines its concentration and thus the opacity. Low wetness makes pigment more concentrated and thus more opaque. This makes it easier to overlap on the other pigments and creates a sense of hierarchy.







Brush
Ink artists mainly use wolf-hair brush to create various strokes by different techniques. Pure ink programs the mechanism of such brush to simulate vertical brush, side brush and inclined brush.

Vertical brush is achieved by pressing the left button of the mouse.

Side brush is through the right button.

Brush turns to inclined and becomes inclined brush if the 'X' key is pressed, or if the 'down' key is pressed continuously when it is not painting. The inclination of the brush can be adjusted through 'up' and 'down' keys when the brush is not painting.

On the other hand, when the brush is painting, pressing the 'up' or 'down' key or rotating the mouse wheel changes the brush pressure. Various thickness of strokes then can be achieved. If the brush is inclined during painting, rotating the mouse wheel changes the orientation of the brush tip.

  

When the mouse button is released, the brush tip does not lift up from the paper immediately but gradually as the mouse dragges and this produces a narrow tail for a stroke. Pure ink considers the process from pressing down the mouse button to the moment that the brush tip leaves the paper as one single action for undo.

If the mouse button is pressed down again before the brush tip leaves the paper totally, the new stroke is still considered as the extension of the last stroke. Two strokes belong to the same action for undo.







To draw a nice stroke, move your brush with varying speed.

The brush in ink art is highly elastic and the paper for ink art absorbs water heavily. The speed of brush determines the amount of pigment being absorbed by paper and thus the shape of the stroke. A brush moving with varying speed creates dynamic stroke with interesting changes of shapes.



To combine the use of vertical brush (via the left key of mouse) and side brush (via the right key of mouse) flexibly. In Pure ink, the pigment from side brush is a bit more wet and lighter than vertical brush. We can create shading for larger area by side brush first and then change to vertical brush immediately to outline darker shadow lines near the edge of shading. This creates a three-dimensional sense







Others
Only the paper layer can be painted. All layers on top of the paper layer are for text. Text can be applied into the paper layer with diffusive effect. The text applied into paper is no longer editable but becomes paintable. Selecting 'Export Paper' only exports the paper layer as an image. Selecting 'Export All' exports all visible layers as an image.







How to ......
Use inclined brush to draw chapped stones, and set brush dryness and pigment wetness to low values.

Press hotkey 'x' to switch the brush to inclined brush. After selecting color, set the wetness roughly to 0.18. Press hotkey '2' or '3' to set the brush dryness to 20% or 30% only. Rotate the mouse wheel so that the direction of the brush tip is roughly parallel to the direction of the cracks and then wipe back and forth along the dark side of the rocks. The pigment in the brush will use up. Put your finger on the key '2' or '3' continuously and press them to refill pigment when this happens.



set the size of the inclines brush to be very small (diameter roughly as 20 pixels). Set the brush dryness to be low as well. Since the brush is smaller, slightly increase the pigment wetness to, says, 0.4 for easy wipping. The direction of brush tip should be perpendicular to the direction of crack. Hemp-fiber crack consists of strokes in the shape of "3". Overlap such strokes with varying density in the dark side of the rocks.



Axe-chisel stroke is done by one single wipe to form a surface, unlike the hemp-fiber crack which forms a surface by overlapping a lot of strokes. Set brush size to be large (e.g. diameter roughly 98 pixels). Use inclined brush. Adjust the length of the brush edge to match with the surface width by pressing the up and down arrow key. Short brush edge is easier to use. Set the pigment wetness to be 0.2. Press the hotkey “3” to set the brush dryness as 30%. Place the brush at the top of where the axe-chisel stroke will be created. The direction of brush tip is perpendicular to the direction of the stroke. The brush moves toward the opposite direction of the brush tip a little bit first and then turns 90 degrees and wipes downward quickly and largely. Remember to release the left mouse button before the brush reaches to the end of the stroke to make the end of stroke more loose.

If we set the brush size to be small (says, diameter as 58 pixels), brush edge to be short and wipes downward slightly, we can have axe-chisel stroke in short size







Demonstration Videos
Short demonstration videos are available to guide you to paint different elements by using Pure ink. The videos are narrated in Cantonese.

10

畫牛


To Paint a Cow

09

畫蝦


To Paint a Prawn

08

畫蟹


To Paint Crabs

07

繪畫蘭花


To Paint Orchid

06

畫竹


To Paint Bamboo

04

繪畫群山

To Paint a group of Mountains

03

繪畫石頭 (3.皴、染、㸃苔)



To Paint a Rock (3. texturing, coloring, and adding moss)

02

繪畫石頭 (2.側鋒勾線)

To Paint a Rock (2. outline by inclined brush)

01

繪畫石頭 (1.中鋒勾線)

To Paint a Rock (1. outline by vertical brush)

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