kopia lustrzana https://github.com/villares/sketch-a-day
117 wiersze
3.4 KiB
Python
117 wiersze
3.4 KiB
Python
# Alexandre B A Villares - https://abav.lugaralgum.com/sketch-a-day
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# Using JCSG library prepared for Processing by George Profenza
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# Work in progress...
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# You'll need to copy these libs into your Processing libraries folder:
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add_library('VVecMath')
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add_library('jcsg')
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from random import choice
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dim = (200, 300, 400, 500)
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def setup():
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global pshape_result
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size(600, 500, P3D)
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hint(ENABLE_DEPTH_TEST)
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hint(ENABLE_DEPTH_SORT)
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# fill(100, 200, 200, 240)
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pshape_result = calculate_stuff()
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def draw():
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background(240)
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lights()
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translate(width * 0.5, height * 0.5, -height)
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rotateY(map(mouseX, 0, width, -PI, PI))
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rotateX(map(mouseY, 0, height, PI, -PI))
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for ps in pshape_result:
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shape(ps)
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def calculate_stuff():
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solids, holes = [], []
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thick = 50
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for i, s in enumerate(range(3)):
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w, h, d = choice(dim), choice(dim), choice(dim)
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solid = Cube(w, h, d).toCSG()
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if w / 100 % 2:
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hole = Cube(w - thick, h, d - thick).toCSG()
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else:
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hole = Cube(w, h - thick, d - thick).toCSG()
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move = choice(dim)
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if move / 100 % 2:
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hole = csgRot(hole, 15, 0, 0)
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solid = csgRot(solid, 15, 0, 0)
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solids.append(csgTranslate(solid, move - 250, 0, 0))
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holes.append(csgTranslate(hole, move - 250, 0, 0))
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mass = solids[0].union(solids[1:])
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void = holes[0].union(holes[1:])
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sub_result = mass.difference(void)
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results = []
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for s in solids:
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results.append(sub_result.intersect(s))
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for i, r in enumerate(results):
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results[i] = r.difference(solids[i - 1])
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colors = [lambda: color(255, 100, 100),
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lambda: color(0, 255, 100),
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lambda: color(0, 100, 255)]
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return [CSGToPShape(r, 1, colors[i % len(results)])
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for i, r in enumerate(results)]
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def csgTranslate(csg, x, y, z):
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return csg.transformed(Transform.unity().translate(x, y, z))
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def csgRot(csg, x, y, z):
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return csg.transformed(Transform.unity().rot(x, y, z))
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def CSGToPShape(mesh, scale, color_maker):
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"""
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Convert a CSG mesh to a Processing PShape
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"""
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result = createShape(GROUP) # allocate a PShape group
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# for each polygon (Note: these can have 3,4 or more vertices)
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for p in mesh.getPolygons():
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# make a child PShape
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polyShape = createShape()
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# begin setting vertices to it
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polyShape.beginShape()
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# for each vertex in the polygon
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for v in p.vertices:
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# add each (scaled) polygon vertex
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polyShape.vertex(v.pos.x * scale,
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v.pos.y * scale,
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v.pos.z * scale)
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# finish this polygon
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polyShape.endShape()
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polyShape.setFill(color_maker())
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# append the child PShape to the parent
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result.addChild(polyShape)
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return result
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def keyPressed():
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if key == "p":
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saveFrame("###.png")
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if key == " ":
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global pshape_result
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pshape_result = calculate_stuff()
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def settings():
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from os import path
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global SKETCH_NAME
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SKETCH_NAME = path.basename(sketchPath())
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OUTPUT = ".png"
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println(
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"""
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[{0}](https://github.com/villares/sketch-a-day/tree/master/{2}/{0}) [[Py.Processing](https://villares.github.io/como-instalar-o-processing-modo-python/index-EN)]
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""".format(SKETCH_NAME, OUTPUT, year())
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)
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