def optimize_piece(piece):
remap = {}
new_indices = []
print 'optimizing:', piece.name
for index in piece.indices:
vertex = piece.vertices[index]
if vertex not in remap:
remap[vertex] = len(remap)
new_indices.append(remap[vertex])
new_vertices = [(index, vertex) for vertex, index in remap.items()]
new_vertices.sort()
new_vertices = [vertex for index, vertex in new_vertices]
if piece.primitive_type == "triangles" and len(new_indices) > 0:
tris = list(chunks(new_indices, 3))
acmr = vertex_cache.average_transform_to_vertex_ratio(tris)
tmp = vertex_cache.get_cache_optimized_triangles(tris)
acmr_new = vertex_cache.average_transform_to_vertex_ratio(tmp)
if acmr_new < acmr:
new_indices = []
for tri in tmp:
new_indices.extend(tri)
vertex_map = []
remapped_indices = []
for index in new_indices:
try:
new_index = vertex_map.index(index)
except ValueError:
new_index = len(vertex_map)
vertex_map.append(index)
remapped_indices.append(new_index)
new_vertices = [new_vertices[index] for index in vertex_map]
new_indices = remapped_indices
piece.indices = new_indices
piece.vertices = new_vertices
def optimize_piece(piece):
remap = {}
new_indices = []
for index in piece.indices:
vertex = piece.vertices[index]
if vertex not in remap:
remap[vertex] = len(remap)
new_indices.append(remap[vertex])
new_vertices = [(index, vertex) for vertex, index in remap.items()]
new_vertices.sort()
new_vertices = [vertex for index, vertex in new_vertices]
if piece.primitive_type == "triangles" and len(new_indices) > 0:
tris = list(chunks(new_indices, 3))
acmr = vertex_cache.average_transform_to_vertex_ratio(tris)
tmp = vertex_cache.get_cache_optimized_triangles(tris)
acmr_new = vertex_cache.average_transform_to_vertex_ratio(tmp)
if acmr_new < acmr:
new_indices = []
for tri in tmp:
new_indices.extend(tri)
vertex_map = []
remapped_indices = []
for index in new_indices:
try:
new_index = vertex_map.index(index)
except ValueError:
new_index = len(vertex_map)
vertex_map.append(index)
remapped_indices.append(new_index)
new_vertices = [new_vertices[index] for index in vertex_map]
new_indices = remapped_indices
piece.indices = new_indices
piece.vertices = new_vertices