Vastly improve rendering time for complex models.
parent
b772c0fd15
commit
d32902bcef
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@ -303,13 +303,24 @@ def DrawMesh(mesh):
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glEnableClientState(GL_NORMAL_ARRAY);
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glVertexPointer(3, GL_FLOAT, 0, mesh.vertexes)
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glNormalPointer(GL_FLOAT, 0, mesh.normal)
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#Odd, drawing in batchs is a LOT faster then drawing it all at once.
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batchSize = 999 #Warning, batchSize needs to be dividable by 3
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extraStartPos = int(mesh.vertexCount / batchSize) * batchSize
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extraCount = mesh.vertexCount - extraStartPos
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glCullFace(GL_BACK)
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glDrawArrays(GL_TRIANGLES, 0, mesh.vertexCount)
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for i in xrange(0, int(mesh.vertexCount / batchSize)):
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glDrawArrays(GL_TRIANGLES, i*batchSize, batchSize)
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glDrawArrays(GL_TRIANGLES, extraStartPos, extraCount)
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glCullFace(GL_FRONT)
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glNormalPointer(GL_FLOAT, 0, mesh.invNormal)
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glDrawArrays(GL_TRIANGLES, 0, mesh.vertexCount)
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for i in xrange(0, int(mesh.vertexCount / batchSize)):
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glDrawArrays(GL_TRIANGLES, i*batchSize, batchSize)
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extraStartPos = int(mesh.vertexCount / batchSize) * batchSize
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extraCount = mesh.vertexCount - extraStartPos
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glDrawArrays(GL_TRIANGLES, extraStartPos, extraCount)
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glCullFace(GL_BACK)
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glDisableClientState(GL_VERTEX_ARRAY)
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@ -19,8 +19,8 @@ class mesh(object):
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def _prepareVertexCount(self, vertexNumber):
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#Set the amount of faces before loading data in them. This way we can create the numpy arrays before we fill them.
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self.origonalVertexes = numpy.zeros((vertexNumber, 3), float)
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self.normal = numpy.zeros((vertexNumber, 3), float)
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self.origonalVertexes = numpy.zeros((vertexNumber, 3), numpy.float32)
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self.normal = numpy.zeros((vertexNumber, 3), numpy.float32)
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self.vertexCount = 0
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def _postProcessAfterLoad(self):
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@ -56,11 +56,11 @@ class mesh(object):
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mat10 = math.sin(rotate) * scaleX
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mat11 = math.cos(rotate) * scaleY
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mat = numpy.array([[mat00,mat10,0],[mat01,mat11,0],[0,0,scaleZ]], float)
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mat = numpy.array([[mat00,mat10,0],[mat01,mat11,0],[0,0,scaleZ]], numpy.float32)
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if swapXZ:
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mat = numpy.array([mat[2],mat[1],mat[0]], float)
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mat = numpy.array([mat[2],mat[1],mat[0]], numpy.float32)
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if swapYZ:
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mat = numpy.array([mat[0],mat[2],mat[1]], float)
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mat = numpy.array([mat[0],mat[2],mat[1]], numpy.float32)
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self.vertexes = (numpy.matrix(self.origonalVertexes, copy = False) * numpy.matrix(mat)).getA()
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tris = self.vertexes.reshape(self.vertexCount / 3, 3, 3)
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@ -70,7 +70,7 @@ class mesh(object):
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normals[:,1] /= lens
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normals[:,2] /= lens
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n = numpy.zeros((self.vertexCount / 3, 9), float)
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n = numpy.zeros((self.vertexCount / 3, 9), numpy.float32)
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n[:,0:3] = normals
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n[:,3:6] = normals
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n[:,6:9] = normals
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