Its been a while. Well i just saw a recent post by a user who has been using the background texture for photo mosaics. I tried to use it as well and its really cool. But wanted to know the difference between the global, path and local options under the tracking parameter of the background texture. Would be grateful also if you could expound on how the orient mod and the tracking parameters work together.
Please i really need this. A user on the forum discussed this issue but no reply. Would be very grateful if you could help.
The background texture can be used in different ways within the paint synthesizer. You might want to use it to generate a paper or canvas texture. In that case, you would want it to be global to the canvas. So the orientation is never being modulated locally.
Other times you might want to use the background texture to generate a brush texture associated with a painted path. So then, you'd want the orientation to track the path orientation. So you perceive the generated texture as a part of the laid down path of paint. Like the brush moving across the canvas generated it.
Other times you might want to modulate the background texture locally so that the orientation is always changing. Perhaps randomly.
The controls you mentioned let you select between the 3 orientation modulation options discussed above. They mirror similar controls in the procedural brush option in the Brush Type control panel.
I'm assuming that if you want to use BK Texture to generate photo mosaic effects, then you would probably want global orientation.
Please thanks for the response, but you did not explain the orient mod parameter. Would really want to know if the background texture (brush) can be setup to orient according to source color orientation/gradient.
Src Orient is one of the options in the Orient Mod popup menu in the Background Texture control panel. So selecting that will modulate the background texture orientation based on the source orientation. Src Hue is also an option if you want to modulate it based on hue. The Orientation offset will be added to whatever you select for Orient Mod.