Selects matching colours.

selectMatchingColour.py

import modo

selected = modo.Mesh()
rgbaMap = selected.geometry.vmaps.rgbaMaps[0]
selectedPolygon = selected.geometry.polygons.selected[0]

def GetAverageRGB(vertices):
	average = (0,0,0)
	numVertices = len(vertices)
	
	for vertex in vertices:
		vertexColour = rgbaMap[vertex.index]
		average = (average[0] + vertexColour[0], average[1] + vertexColour[1], average[2] + vertexColour[2])
			
	return (average[0] / numVertices, average[1] / numVertices, average[2] / numVertices)

averageSelectedPolygonColour = GetAverageRGB(selectedPolygon.vertices)

def IsMatchingRGB(colour):
	for x in range(3):
		if abs(colour[x] - averageSelectedPolygonColour[x]) > 0.05:
			return False
	return True

for polygon in selected.geometry.polygons:
	polygonColour = GetAverageRGB(polygon.vertices)
	if IsMatchingRGB(polygonColour):
		polygon.select()