canvas brush

When we work on image in canvas mode one an image, often we needs to erase a part or in transparency the effect of brush which one has just pose.

In this case the technique of brush by restoration of the basic image and not of the background proves to be necessary.
This type of brush is on Eclipse or StudioPaint.
This example shows how in Paint Effect we can produce this type of brushe

Here, we will take the example of the modification of a mapping of file on a surface.

NOTICE ON THE PREPARATION OF THE MAPS:

It is more practical to create two files of the image than you will use:
One for the map.

(In our example : MapRuisdael_Raleigh_Spruces_warefall.jpg ).

One other for the sroke

( In our example : StrokeRuisdael_Raleigh_Spruces_warefall.jpg ) .



MAP AN IMAGE ON A SURFACE

* Go in perspectiv vue
* Create a plan: Create-> NurbsPrimitive
* Create a directional lighte : LIGHT>CreateDirectional Light
* Direct the lumiére ( rendering mode : key7, and keyT)
* Open HYPERSHADE, Choose a " material Blinn " and map on the color the file which
you prepared :



* Apply this shader on the surface

CREATE THE BRUSH RESTORES

* On the perspective window activate Effect Paint by activating key 8
* The cursor positioned in this window press on the right key of mouse
* and choose the option Paint->PaintCanvas to test the manufacture of
your brush.
* First,You can initialize the values of a brush: Paint Effects->ResetTemplateBrush
* Open the window of Brushes attributs :



* If for example you want a brush of this type:



* You must have the parameters of following attributes:






* Save this brush like new " preset " in a shelf : Paint Effect-> Save Brush Preset



* Clean the canvas, thendesactivate the canvas window of paint Effect while pressing on key 8.
OPENING OF PAINT EFFECT WINDOW and PERSPECTIV VIEW

* Divide your space of work into two parts : Panel->Layouts>2 side by side
* On the right-hand window activate Effect Paint by key 8
* The cursor positioned in this window press on the right key of mouse
* Choose option Paint->PaintCanvas
* From Window->Visor click and dragg the file of map on the Canvas window



* Thus, in the window of right-hand side you have your geometrie with the map, in the canvas the map which you can work :



* You can work in the surface of the canvas:



* The update of the file map is done by activating the icone folder of the canvas window :



* The brush restores makes it possible to erase the parts which one has just worked by finding the bottom that one has map on surface:




from :http://www.highend3d.com
.