17. Miscellaneous
17.1 Font
- In the shader class declares a font variable ft
variable ft
- In InitDeviceObjects method of the shader class inserts following line that will initailize the ft.
%ft init
- In the RestoreDeviceObjects method inserts following line that restores the ft.
$ft restore
- In the InvalidateDeviceObjects method inserts following line that invalidates the ft.
$ft invalidate
- In the DeleteDeviceObjects method inserts following line that frees ft.
$ft release
- In the Render method following command draw a text string
$ft draw row column color string
The text string with color is painted on the row and column.
17.2 Arcball
set arcball [$app arcball]
creates an arcball using mouse control.
17.3 Light
set lit [$app light directional x y z]
creates a directional light object lit in position vector <x, y, z>. $lit set $n command sets the lit as the n-th light. $lit enable 0 true enables the light lit. When you using the pixel shader you can ignore this fixed-function lighting.
17.4 Material
set mtrl [$app material x y z w]
$mtrl set
These two commands create a material mtrl with float4 vector <x, y, z, w> and sets it with $mtrl set command.
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