Sha256: 9ca82e4ce67201fd4f087a29221d1bba63c21376b947818495929c00909bf3e0
Contents?: true
Size: 1.3 KB
Versions: 3
Compression:
Stored size: 1.3 KB
Contents
def setup # With Processing, buffers allow you to draw off-screen to an image, # and then use that image in your sketch. This can speed up rendering # times quite a bit, as it's not only faster to draw off-screen, but # it also allows you to redraw only portions of the screen. # Ruby-Processing provides a convenience method, "buffer", which # sets up a buffer for you with the same width and height and # renderer as the current sketch, and yields it to you. It also # takes care of calling begin_draw and end_draw at the start and # end of the block. Use it like so: size 800, 800, P2D @buffer = buffer do |b| b.no_stroke b.fill 255, 0, 0 b.rect 100, 200, 100, 100 end # Those lines are equivalent to the following lines: @buffer_2 = create_graphics(500, 500, P2D) @buffer_2.begin_draw @buffer_2.no_stroke @buffer_2.fill(255, 0, 0) @buffer_2.rect(100, 200, 100, 100) @buffer_2.end_draw # If you'd like to set the size or renderer for the buffer block, # just pass it in like normal: @buffer_3 = buffer(150, 150, P2D) do |b| # b.whatever goes here. end # And now we go ahead and grab the rendered image from the first buffer. @img = @buffer.get(0, 0, @buffer.width, @buffer.height) end def draw background 0 image @img, frame_count, 0 end
Version data entries
3 entries across 3 versions & 1 rubygems
Version | Path |
---|---|
ruby-processing-2.4.3 | samples/contributed/simple_buffer.rb |
ruby-processing-2.4.2 | samples/contributed/simple_buffer.rb |
ruby-processing-2.4.1 | samples/contributed/simple_buffer.rb |