95 lines
3.3 KiB
Python
95 lines
3.3 KiB
Python
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#!/usr/bin/env python
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# Author: Shao Zhang and Phil Saltzman
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# Last Updated: 2015-03-13
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#
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# This tutorial shows how to take an existing particle effect taken from a
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# .ptf file and run it in a general Panda project.
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from direct.showbase.ShowBase import ShowBase
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from panda3d.core import TextNode
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from panda3d.core import AmbientLight, DirectionalLight
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from panda3d.core import LPoint3, LVector3
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from panda3d.core import Filename
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from panda3d.physics import BaseParticleEmitter, BaseParticleRenderer
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from panda3d.physics import PointParticleFactory, SpriteParticleRenderer
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from panda3d.physics import LinearNoiseForce, DiscEmitter
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from direct.particles.Particles import Particles
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from direct.particles.ParticleEffect import ParticleEffect
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from direct.particles.ForceGroup import ForceGroup
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from direct.gui.OnscreenText import OnscreenText
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import sys
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HELP_TEXT = """
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1: Load Steam
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2: Load Dust
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3: Load Fountain
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4: Load Smoke
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5: Load Smokering
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6: Load Fireish
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ESC: Quit
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"""
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class ParticleDemo(ShowBase):
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def __init__(self):
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ShowBase.__init__(self)
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# Standard title and instruction text
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self.title = OnscreenText(
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text="Panda3D: Tutorial - Particles",
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parent=base.a2dBottomCenter,
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style=1, fg=(1, 1, 1, 1), pos=(0, 0.1), scale=.08)
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self.escapeEvent = OnscreenText(
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text=HELP_TEXT, parent=base.a2dTopLeft,
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style=1, fg=(1, 1, 1, 1), pos=(0.06, -0.06),
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align=TextNode.ALeft, scale=.05)
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# More standard initialization
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self.accept('escape', sys.exit)
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self.accept('1', self.loadParticleConfig, ['steam.ptf'])
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self.accept('2', self.loadParticleConfig, ['dust.ptf'])
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self.accept('3', self.loadParticleConfig, ['fountain.ptf'])
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self.accept('4', self.loadParticleConfig, ['smoke.ptf'])
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self.accept('5', self.loadParticleConfig, ['smokering.ptf'])
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self.accept('6', self.loadParticleConfig, ['fireish.ptf'])
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self.accept('escape', sys.exit)
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base.disableMouse()
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base.camera.setPos(0, -20, 2)
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base.camLens.setFov(25)
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base.setBackgroundColor(0, 0, 0)
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# This command is required for Panda to render particles
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base.enableParticles()
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self.t = loader.loadModel("teapot")
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self.t.setPos(0, 10, 0)
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self.t.reparentTo(render)
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self.setupLights()
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self.p = ParticleEffect()
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self.loadParticleConfig('steam.ptf')
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def loadParticleConfig(self, filename):
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# Start of the code from steam.ptf
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self.p.cleanup()
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self.p = ParticleEffect()
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self.p.loadConfig(Filename(filename))
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# Sets particles to birth relative to the teapot, but to render at
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# toplevel
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self.p.start(self.t)
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self.p.setPos(3.000, 0.000, 2.250)
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# Setup lighting
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def setupLights(self):
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ambientLight = AmbientLight("ambientLight")
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ambientLight.setColor((.4, .4, .35, 1))
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directionalLight = DirectionalLight("directionalLight")
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directionalLight.setDirection(LVector3(0, 8, -2.5))
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directionalLight.setColor((0.9, 0.8, 0.9, 1))
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# Set lighting on teapot so steam doesn't get affected
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self.t.setLight(self.t.attachNewNode(directionalLight))
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self.t.setLight(self.t.attachNewNode(ambientLight))
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demo = ParticleDemo()
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demo.run()
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