81 lines
2.3 KiB
Python
81 lines
2.3 KiB
Python
from OpenGL.GL import *
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from .. GLGraphicsItem import GLGraphicsItem
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from .. MeshData import MeshData
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from pyqtgraph.Qt import QtGui
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import pyqtgraph as pg
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from .. import shaders
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import numpy as np
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__all__ = ['GLMeshItem']
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class GLMeshItem(GLGraphicsItem):
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"""
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**Bases:** :class:`GLGraphicsItem <pyqtgraph.opengl.GLGraphicsItem>`
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Displays a 3D triangle mesh.
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"""
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def __init__(self, faces, vertexes=None):
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"""
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See :class:`MeshData <pyqtgraph.opengl.MeshData>` for initialization arguments.
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"""
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if isinstance(faces, MeshData):
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self.data = faces
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else:
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self.data = MeshData()
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self.data.setFaces(faces, vertexes)
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GLGraphicsItem.__init__(self)
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def initializeGL(self):
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self.shader = shaders.getShaderProgram('balloon')
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l = glGenLists(1)
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self.triList = l
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glNewList(l, GL_COMPILE)
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
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glEnable( GL_BLEND )
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glEnable( GL_ALPHA_TEST )
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#glAlphaFunc( GL_ALWAYS,0.5 )
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glEnable( GL_POINT_SMOOTH )
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glDisable( GL_DEPTH_TEST )
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glColor4f(1, 1, 1, .1)
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glBegin( GL_TRIANGLES )
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for face in self.data:
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for (pos, norm, color) in face:
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glColor4f(*color)
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glNormal3f(norm.x(), norm.y(), norm.z())
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glVertex3f(pos.x(), pos.y(), pos.z())
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glEnd()
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glEndList()
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#l = glGenLists(1)
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#self.meshList = l
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#glNewList(l, GL_COMPILE)
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#glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
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#glEnable( GL_BLEND )
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#glEnable( GL_ALPHA_TEST )
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##glAlphaFunc( GL_ALWAYS,0.5 )
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#glEnable( GL_POINT_SMOOTH )
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#glEnable( GL_DEPTH_TEST )
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#glColor4f(1, 1, 1, .3)
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#glBegin( GL_LINES )
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#for f in self.faces:
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#for i in [0,1,2]:
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#j = (i+1) % 3
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#glVertex3f(*f[i])
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#glVertex3f(*f[j])
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#glEnd()
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#glEndList()
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def paint(self):
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with self.shader:
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glCallList(self.triList)
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#shaders.glUseProgram(self.shader)
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#glCallList(self.triList)
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#shaders.glUseProgram(0)
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#glCallList(self.meshList)
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