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From: <bha...@us...> - 2007-12-17 18:04:23
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Revision: 511
http://python-ogre.svn.sourceforge.net/python-ogre/?rev=511&view=rev
Author: bharling
Date: 2007-12-17 10:04:21 -0800 (Mon, 17 Dec 2007)
Log Message:
-----------
Updated to the latest version of the showcase demo.
A little speed improvement.
-bharling
Added Paths:
-----------
trunk/python-ogre/demos/showcase_01/texture.py
Added: trunk/python-ogre/demos/showcase_01/texture.py
===================================================================
--- trunk/python-ogre/demos/showcase_01/texture.py (rev 0)
+++ trunk/python-ogre/demos/showcase_01/texture.py 2007-12-17 18:04:21 UTC (rev 511)
@@ -0,0 +1,79 @@
+import ogre.renderer.OGRE as ogre
+import ctypes
+import SampleFramework as sf
+
+class textureListener(ogre.FrameListener):
+ def __init__(self, app):
+ ogre.FrameListener.__init__(self)
+ self.app = app
+ self.grnVal = 0
+ self.fading = True
+
+ def frameStarted(self, frameEvent):
+ self.grnVal = self.fading and self.grnVal + 1 or self.grnVal -1
+ if self.grnVal == 255:
+ self.fading = False
+ elif self.grnVal == 0:
+ self.fading = True
+ colArray = [0,self.grnVal,0,128] * 16 * 16
+ self.app.setTextureManual(self.app.mTex, 16,16, colArray)
+ return True
+
+
+class textureTest(sf.Application):
+ def __init__(self):
+ sf.Application.__init__(self)
+
+ def _createScene(self):
+ self.mTex = ogre.TextureManager.getSingleton().createManual(
+ "DynamicTexture",
+ ogre.ResourceGroupManager.DEFAULT_RESOURCE_GROUP_NAME,
+ ogre.TEX_TYPE_2D,
+ 16, 16,
+ 0,
+ ogre.PF_BYTE_BGRA,
+ ogre.TU_DEFAULT)
+ colArray = [0,255,0,128] * 16 * 16
+ self.setTextureManual(self.mTex, 16, 16, colArray)
+ self.material = ogre.MaterialManager.getSingleton().create(
+ "DynamicTextureMaterial",
+ ogre.ResourceGroupManager.DEFAULT_RESOURCE_GROUP_NAME)
+
+ self.material.getTechnique(0).getPass(0).createTextureUnitState("DynamicTexture")
+ self.material.getTechnique(0).getPass(0).setSceneBlending(ogre.SBT_TRANSPARENT_ALPHA)
+ self.ent = self.sceneManager.createEntity("mrben", "knot.mesh")
+ self.ent.setMaterialName("DynamicTextureMaterial")
+ self.node = self.sceneManager.rootSceneNode.createChildSceneNode('Knot3Node', (-100, -10, -200))
+ self.node.attachObject(self.ent)
+
+ self.lstnr = textureListener(self)
+ ogre.Root.getSingleton().addFrameListener(self.lstnr)
+
+ #Texture is a manually created Texture
+ #dataArray is an array of pixel colour data
+ def setTextureManual(self, texture, width, height, dataArray):
+ import ctypes
+ # Get the pixel buffer
+ pixelBuffer = texture.getBuffer()
+ # Lock the pixel buffer and get a pixel box
+ pointer = pixelBuffer.lock(0,width*height,ogre.HardwareBuffer.HBL_NORMAL)
+ #number 4 here is use to accommodate the bytes for r, g, b, a may vary with different pixel formats
+ storageclass = ctypes.c_uint8 * (width*height*4)
+ cbuffer=storageclass.from_address(ogre.CastInt(pointer))
+ pos=0
+ for j in range(height):
+ for i in range( width ) :
+ cbuffer[pos]= dataArray[pos] # B
+ pos+=1
+ cbuffer[pos]= dataArray[pos] # G
+ pos+=1
+ cbuffer[pos]= dataArray[pos] # R
+ pos+=1
+ cbuffer[pos]= dataArray[pos] # A
+ pos+=1
+ # Unlock the pixel buffer
+ pixelBuffer.unlock()
+
+if __name__=='__main__':
+ ta = textureTest()
+ ta.go()
\ No newline at end of file
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