Python GeomVertexFormat.getV3c4t2方法代码示例

# 需要导入模块: from panda3d.core import GeomVertexFormat [as 别名]
# 或者: from panda3d.core.GeomVertexFormat import getV3c4t2 [as 别名]
    def __init__(self, name = 'Mesh'):
       
        self.name = name
        self.finished = False
 
        self.format = GeomVertexFormat.getV3c4t2()
        #print self.format
        self.vertexData = GeomVertexData(name, self.format, Geom.UHStatic)
        self.vertexData.setNumRows(26136)
       
        self.mesh = Geom(self.vertexData)
        self.triangles = GeomTriangles(Geom.UHStatic)
        self.triangleData = self.triangles.modifyVertices()
        self.triangleData.setNumRows(26136)
       
        self.vertex = GeomVertexWriter(self.vertexData, 'vertex')
        self.normal = GeomVertexWriter(self.vertexData, 'normal')
        self.color = GeomVertexWriter(self.vertexData, 'color')
        self.texcoord = GeomVertexWriter(self.vertexData, 'texcoord')
       
        self.faceCount = 0

# 需要导入模块: from panda3d.core import GeomVertexFormat [as 别名]
# 或者: from panda3d.core.GeomVertexFormat import getV3c4t2 [as 别名]

#.........这里部分代码省略.........
                                # Get color at frame definition as last resort.
                                for colorNode in colors.getiterator('color'):
                                    if colorNode.tag == 'color' and colorNode.attrib.get("name") == frameNode.attrib.get("color-name"):
                                        R = 1 if colorNode.attrib.get("r") == None else float(colorNode.attrib.get("r"))
                                        G = 1 if colorNode.attrib.get("g") == None else float(colorNode.attrib.get("g"))
                                        B = 1 if colorNode.attrib.get("b") == None else float(colorNode.attrib.get("b"))
                                        A = 1 if colorNode.attrib.get("a") == None else float(colorNode.attrib.get("a"))
                                        color = Color(R, G, B, A)
                                        break # leave for loop when we find the correct color
                                pass
                            rotationZ = 0 if frameCallNode.attrib.get("rotation-z") == None else float(frameCallNode.attrib.get("rotation-z"))
                            frameList.append(Frame(Bound(offsetX, offsetY, addWidth, addHeight), s, t, S, T, blend, scaleX, scaleY, color, rotationZ))
                    pass 
                break # Leave once we've found the appropriate frame

        # Prepare tracking list of consumed nodes.
        self.clearNodesForDrawing()
        # Make an identifier to tack onto primitive names in Panda3d's scene graph.
        frameIndexForName = 1
                
        # Loop through loaded frames that make up composite frame.
        for loadedFrame in frameList:              
            # For debugging purposes, print the object.
            if False:
                loadedFrame.printAsString()
            
            # Set up place to store primitive 3d object; note: requires vertex data made by GeomVertexData
            squareMadeByTriangleStrips = GeomTristrips(Geom.UHDynamic)
              
            # Set up place to hold 3d data and for the following coordinates:
            #   square's points (V3: x, y, z), 
            #   the colors at each point of the square (c4: r, g, b, a), and
            #   for the UV texture coordinates at each point of the square     (t2: S, T).
            vertexData = GeomVertexData('square-'+str(frameIndexForName), GeomVertexFormat.getV3c4t2(), Geom.UHDynamic)
            vertex = GeomVertexWriter(vertexData, 'vertex')
            color = GeomVertexWriter(vertexData, 'color')
            texcoord = GeomVertexWriter(vertexData, 'texcoord') 
              
            # Add the square's data
            # Upper-Left corner of square
            vertex.addData3f(-loadedFrame.bound.Width / 2.0, 0, -loadedFrame.bound.Height / 2.0)
            color.addData4f(loadedFrame.color.R,loadedFrame.color.G,loadedFrame.color.B,loadedFrame.color.A)
            texcoord.addData2f(loadedFrame.s, loadedFrame.T)

            # Upper-Right corner of square
            vertex.addData3f(loadedFrame.bound.Width / 2.0, 0, -loadedFrame.bound.Height / 2.0)
            color.addData4f(loadedFrame.color.R,loadedFrame.color.G,loadedFrame.color.B,loadedFrame.color.A)
            texcoord.addData2f(loadedFrame.S, loadedFrame.T)
            
            # Lower-Left corner of square
            vertex.addData3f(-loadedFrame.bound.Width / 2.0, 0, loadedFrame.bound.Height / 2.0)
            color.addData4f(loadedFrame.color.R,loadedFrame.color.G,loadedFrame.color.B,loadedFrame.color.A)
            texcoord.addData2f(loadedFrame.s, loadedFrame.t)
            
            # Lower-Right corner of square
            vertex.addData3f(loadedFrame.bound.Width / 2.0, 0, loadedFrame.bound.Height / 2.0)
            color.addData4f(loadedFrame.color.R,loadedFrame.color.G,loadedFrame.color.B,loadedFrame.color.A)
            texcoord.addData2f(loadedFrame.S, loadedFrame.t)

            # Pass data to primitive
            squareMadeByTriangleStrips.addNextVertices(4)
            squareMadeByTriangleStrips.closePrimitive()
            square = Geom(vertexData)
            square.addPrimitive(squareMadeByTriangleStrips)
            # Pass primtive to drawing node
            drawPrimitiveNode=GeomNode('square-'+str(frameIndexForName))