125 lines
4.5 KiB
Python
125 lines
4.5 KiB
Python
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#!/usr/bin/env python
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from direct.showbase.ShowBase import ShowBase
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from panda3d.core import Filename, Texture
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from panda3d.core import AmbientLight, DirectionalLight, PointLight
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from panda3d.core import NodePath, TextNode
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from direct.task.Task import Task
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from direct.actor.Actor import Actor
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from direct.gui.OnscreenText import OnscreenText
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import sys
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import os
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import random
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# Function to put instructions on the screen.
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def addInstructions(pos, msg):
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return OnscreenText(text=msg, style=1, fg=(1, 1, 1, 1), scale=.05,
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shadow=(0, 0, 0, 1), parent=base.a2dTopLeft,
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pos=(0.08, -pos - 0.04), align=TextNode.ALeft)
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# Function to put title on the screen.
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def addTitle(text):
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return OnscreenText(text=text, style=1, fg=(1, 1, 1, 1), scale=.08,
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parent=base.a2dBottomRight, align=TextNode.ARight,
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pos=(-0.1, 0.09), shadow=(0, 0, 0, 1))
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random.seed()
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class TeapotOnTVDemo(ShowBase):
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def __init__(self):
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ShowBase.__init__(self)
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self.disableMouse()
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self.setBackgroundColor((0, 0, 0, 1))
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# Post the instructions.
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self.title = addTitle("Panda3D: Tutorial - Using Render-to-Texture")
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self.inst1 = addInstructions(0.06, "ESC: Quit")
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self.inst2 = addInstructions(0.12, "Up/Down: Zoom in/out on the Teapot")
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self.inst3 = addInstructions(0.18, "Left/Right: Move teapot left/right")
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self.inst4 = addInstructions(0.24, "V: View the render-to-texture results")
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# we now get buffer thats going to hold the texture of our new scene
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altBuffer = self.win.makeTextureBuffer("hello", 256, 256)
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# now we have to setup a new scene graph to make this scene
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altRender = NodePath("new render")
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# this takes care of setting up ther camera properly
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self.altCam = self.makeCamera(altBuffer)
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self.altCam.reparentTo(altRender)
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self.altCam.setPos(0, -10, 0)
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# get the teapot and rotates it for a simple animation
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self.teapot = loader.loadModel('teapot')
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self.teapot.reparentTo(altRender)
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self.teapot.setPos(0, 0, -1)
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self.teapot.hprInterval(1.5, (360, 360, 360)).loop()
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# put some lighting on the teapot
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dlight = DirectionalLight('dlight')
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alight = AmbientLight('alight')
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dlnp = altRender.attachNewNode(dlight)
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alnp = altRender.attachNewNode(alight)
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dlight.setColor((0.8, 0.8, 0.5, 1))
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alight.setColor((0.2, 0.2, 0.2, 1))
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dlnp.setHpr(0, -60, 0)
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altRender.setLight(dlnp)
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altRender.setLight(alnp)
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# Put lighting on the main scene
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plight = PointLight('plight')
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plnp = render.attachNewNode(plight)
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plnp.setPos(0, 0, 10)
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render.setLight(plnp)
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render.setLight(alnp)
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# Panda contains a built-in viewer that lets you view the results of
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# your render-to-texture operations. This code configures the viewer.
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self.accept("v", self.bufferViewer.toggleEnable)
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self.accept("V", self.bufferViewer.toggleEnable)
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self.bufferViewer.setPosition("llcorner")
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self.bufferViewer.setCardSize(1.0, 0.0)
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# Create the tv-men. Each TV-man will display the
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# offscreen-texture on his TV screen.
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self.tvMen = []
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self.makeTvMan(-5, 30, 1, altBuffer.getTexture(), 0.9)
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self.makeTvMan(5, 30, 1, altBuffer.getTexture(), 1.4)
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self.makeTvMan(0, 23, -3, altBuffer.getTexture(), 2.0)
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self.makeTvMan(-5, 20, -6, altBuffer.getTexture(), 1.1)
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self.makeTvMan(5, 18, -5, altBuffer.getTexture(), 1.7)
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self.accept("escape", sys.exit, [0])
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self.accept("arrow_up", self.zoomIn)
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self.accept("arrow_down", self.zoomOut)
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self.accept("arrow_left", self.moveLeft)
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self.accept("arrow_right", self.moveRight)
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def makeTvMan(self, x, y, z, tex, playrate):
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man = Actor()
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man.loadModel('models/mechman_idle')
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man.setPos(x, y, z)
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man.reparentTo(render)
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faceplate = man.find("**/faceplate")
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faceplate.setTexture(tex, 1)
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man.setPlayRate(playrate, "mechman_anim")
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man.loop("mechman_anim")
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self.tvMen.append(man)
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def zoomIn(self):
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self.altCam.setY(self.altCam.getY() * 0.9)
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def zoomOut(self):
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self.altCam.setY(self.altCam.getY() * 1.2)
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def moveLeft(self):
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self.altCam.setX(self.altCam.getX() + 1)
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def moveRight(self):
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self.altCam.setX(self.altCam.getX() - 1)
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demo = TeapotOnTVDemo()
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demo.run()
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