def generate_renderable_array_object(self) -> RenderableArray:
"""Generates RenderableArray object for a portal"""
# Hard coded triangle indices as file format only specifies 4 indices
triangleIndices: List[IntIterable] = [[0, 1, 2], [0, 2, 3]]
currentRenderable = RenderableArray()
currentRenderable.materialIndex = R6Constants.UINT_MAX
for vertex in self.vertices:
currentRenderable.vertices.append(vertex.copy())
#calculate the normal of the first triangle
line1 = Vector.subtract_vector(self.vertices[0], self.vertices[1])
line2 = Vector.subtract_vector(self.vertices[1], self.vertices[2])
crossProductNormal = Vector.cross(line1, line2)
#use the same normal for all vertices
currentRenderable.normals = []
for _ in range(len(currentRenderable.vertices)):
currentRenderable.normals.append(crossProductNormal.copy())
#Explicitly state that there are no values for these attributes
currentRenderable.UVs = None
currentRenderable.vertexColors = None
currentRenderable.triangleIndices = triangleIndices
return currentRenderable
def generate_renderable_arrays_for_mesh(
self, mesh: R6MeshDefinition) -> List[RenderableArray]:
""" Generates a list of RenderableArray objects from the internal data structure """
renderables: List[RenderableArray] = []
uniqueMaterials = set()
for faceIdx in mesh.faceIndices:
currentFace = self.faces[faceIdx]
uniqueMaterials.add(currentFace.materialIndex)
for materialIdx in uniqueMaterials:
attribList: List[Tuple[int, int]] = []
triangleIndices: List[IntIterable] = []
#build list of sets of vertices and associated params, and list of new triangle indices
for faceIdx in mesh.faceIndices:
currentFace = self.faces[faceIdx]
if currentFace.materialIndex == materialIdx:
# Add this face to the current renderable
currentTriangleIndices = []
for vertIndex in range(len(currentFace.vertexIndices)):
#Build a list of attributes paired with a vertex, which we can use to reduce total array length in the RenderableArray
currentAttribs = (currentFace.vertexIndices[vertIndex],
currentFace.paramIndices[vertIndex])
if currentAttribs in attribList:
currentTriangleIndices.append(
attribList.index(currentAttribs))
else:
attribList.append(currentAttribs)
currentTriangleIndices.append(
attribList.index(currentAttribs))
triangleIndices.append(currentTriangleIndices)
currentRenderable = RenderableArray()
currentRenderable.normals = []
currentRenderable.UVs = []
currentRenderable.vertexColors = []
# fill out new renderable by unravelling and expanding the vertex and param pairs
for currentAttribSet in attribList:
# Make sure to copy any arrays so any transforms don't get interferred with in other renderables
currentVertex = self.vertices[currentAttribSet[0]]
currentVertexParams = self.vertexParams[currentAttribSet[1]]
currentRenderable.vertices.append(currentVertex.copy())
currentRenderable.normals.append(
currentVertexParams.normal.copy())
currentRenderable.UVs.append(currentVertexParams.UV.copy())
# Convert color to RenderableArray standard format, RGBA 0.0-1.0 range
importedColorCopy = currentVertexParams.color.copy()
# convert the color to 0.0-1.0 range, rather than 0-255
importedColor = normalize_color(importedColorCopy)
# pad with an alpha value so it's RGBA
importedColor = pad_color(importedColor)
currentRenderable.vertexColors.append(importedColor)
# Assign the specified material
currentRenderable.materialIndex = materialIdx
# set the triangle indices
currentRenderable.triangleIndices = triangleIndices
renderables.append(currentRenderable)
return renderables