Sharedwww / talks / 2006-05-09-sage-digipen / tutorial / modeling-2.pyOpen in CoCalc
Author: William A. Stein
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# Soya 3D tutorial
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# Copyright (C) 2001-2004 Jean-Baptiste LAMY
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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# modeling-2: Shape : displaying two pyramids
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# The pyramid model we create in the previous lesson was still in a scratchy form :
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# all faces and vertices were python object, and were rendered individually, which
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# implies a performance lost.
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# In this lesson we'll see how to "compile" our pyramid model into a Shape,
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# and how to use it in the same way we use the sword model in the basic-1.py lesson.
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# Imports and inits Soya.
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import sys, os, os.path, soya
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soya.init()
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soya.path.append(os.path.join(os.path.dirname(sys.argv[0]), "data"))
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# Creates the scene.
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scene = soya.World()
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# Loads the pyramid model that we have created and saved in the modeling-basic-1.py
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# lesson.
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# We ask Soya for s Shape called "pyramid", though it does not exist ! Remember, we have
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# created a World pyramid, not a Shape. In this case, Shape.get automatically loads the
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# pyramid World, compiles it into a Shape, and saves the Shape in the "./shapes" directory
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# in soya.path[0].
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# Soya Shape compilation behaves like Python compilation of .py files in .pyc : whenever
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# the World file is changed, Shape.get will recompile it automatically.
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# You can also use the World.shapify() to compile a World into a Shape without saving it.
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pyramid_model = soya.Shape.get("pyramid")
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# Creates a Volume in the scene, that displays the pyramid.
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pyramid1 = soya.Volume(scene, pyramid_model)
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# Moves and rotates the pyramid (for a better view)
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pyramid1.x = -0.7
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pyramid1.rotate_lateral(60.0)
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# Creates a second pyramid. Contrary to World, Shape model can be displayed several
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# time at different position.
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# Soya separates the model part (the Shape) from the position part (the Volume).
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pyramid2 = soya.Volume(scene, pyramid_model)
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pyramid2.x = 0.8
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pyramid2.rotate_lateral(45.0)
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# Creates a light.
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light = soya.Light(scene)
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light.set_xyz(1.0, 0.7, 1.0)
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# Creates a camera.
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camera = soya.Camera(scene)
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camera.set_xyz(0.0, -0.6, 2.0)
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soya.set_root_widget(camera)
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soya.Idler(scene).idle()
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