UsingSketchesAsTextures( .pde => .rb )

Processing with Other Languages

whyhellot..

UsingSketchesAsTextures( .pde => .rb )

in Processing with Other Languages • 2 years ago

anybody have better luck converting

http://www.the-product.org/gestalt/examples/UsingSketchesAsTextures/UsingSketchesAsTextures.pde

to Ruby-Processing ?

i can post what i've tried .. but i think it's fubar . =T

Replies(6)

owaunandr..

Re: UsingSketchesAsTextures.pde => UsingSketchesAsTextures.rb

2 years ago

Post it and let's see.

whyhellot..

Re: UsingSketchesAsTextures.pde => UsingSketchesAsTextures.rb

2 years ago

require 'ruby-processing'
class UsingSketchesAsTextures < Processing::App
load_java_library "opengl"
include_package "processing.opengl"
load_java_library "gestalt_p5"
import "gestalt.Gestalt"
import "gestalt.candidates.JoglFrameBufferCopy"
import "gestalt.p5.GestaltPlugIn"
import "gestalt.shape.Plane"
import "gestalt.shape.material.TexturePlugin"
import "gestalt.texture.bitmap.IntegerBitmap"
def setup
render_mode OPENGL
rect_mode CENTER
@gestalt = GestaltPlugIn.new(self)
# keep gestalt from clearing any buffers
# we do this after we copied the framebuffer into a texture
@gestalt.framesetup.depthbufferclearing = false
@gestalt.framesetup.colorbufferclearing = false
# create an empty dummy bitmap
@my_texture = @gestalt.drawablefactory.texture
@my_texture.load(IntegerBitmap.getDefaultImageBitmap(width, height))
# create a plane to display our texture
@my_screen = @gestalt.drawablefactory.plane
@my_screen.position.set(width/2, height/2)
@my_screen.material.addPlugin(@my_texture)
@my_screen.scale(width, height) # ORIGINAL _myScreen.scale().set(width, height);
@gestalt.bin(Gestalt::BIN_3D).add(@my_screen)
# create a screengrabber
@my_frame_buffer_copy = JoglFrameBufferCopy.new(@my_texture)
@my_frame_buffer_copy.backgroundcolor.set(0.2, 1)
@my_frame_buffer_copy.width = width
@my_frame_buffer_copy.height = height
@gestalt.bin(Gestalt::BIN_3D_SETUP).add(@my_frame_buffer_copy)
end
def draw
# clear screen
background(0, 128, 255)
# draw processing stuff
fill(255, 255)
stroke(0, 255)
stroke_weight(20)
rect(mouseX, mouseY, 200, 200)
end
end
UsingSketchesAsTextures.new :title => "UsingSketchesAsTextures", :width => 640, :height => 480

monkstone

Re: UsingSketchesAsTextures.pde => UsingSketchesAsTextures.rb

2 years ago

Exception line 39 is the 'f' in 0.2f not recognized in ruby/jruby/ruby-processing.

Constants BIN_3D_SETUP should be Gestalt::BIN_3D_SETUP.

I'm running linux and I have issues running OPENGL with ruby-processing so unfortunately I can't easily test the above.

whyhellot..

Re: UsingSketchesAsTextures.pde => UsingSketchesAsTextures.rb

2 years ago

i'll update the Constants in the code above,

removing the 'f' does stop the Exception

it doesn't work yet, but getting closer

thanks for taking a look !

monkstone

Re: UsingSketchesAsTextures.pde => UsingSketchesAsTextures.rb

2 years ago

I just looked at the vanilla processing sketch, pretty cool. But in confirms I would have a problem on linux, similar to this one which runs on linux at full screen, but loses some of the effect when full screen. You may be able run it just as well on ruby as vanilla processing. PS: you will need to add back the rotation for your sketch to work.

whyhellot..

Re: UsingSketchesAsTextures.pde => UsingSketchesAsTextures.rb

2 years ago

yeah, it's pretty neat. i'm trying to get it running so i can create a projector visualization for a musician friend; a sound/music reactive kaleidoscope using the minim library .. and eventually have it also respond to midi triggers .. i just have to get past this first heheh

the java-processing code works ok when i comment out the rotation, should be the same for the ruby-processing

i've taken a step back to try and get a simpler sketch converted to ruby-processing ..

UsingTheSimplestGestaltSketchEver.pde

hoping it'll bring some insight to the code above ..

thanks for your blog link, will definitely read through to absorb the knowledge

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