2 def __init__(self, materials):
3 self.technique = materials[0].technique
4 self.name = "material_map_"+self.technique
5 self.materials = materials
6 self.srgb_colors = materials[0].srgb_colors
7 for m in self.materials:
8 if m.technique!=self.technique:
9 raise Exception("Conflicting techniques in MaterialMap constructor")
10 if m.srgb_colors!=self.srgb_colors:
11 raise Exception("Conflicting colorspace settings in MaterialMap constructor")
13 count = len(self.materials)
15 while size*size*2<count:
18 self.size = (size, size)
20 self.size = (size*2, size)
22 from .util import get_colormap
24 cm = get_colormap(self.srgb_colors)
25 self.diffuse_data = ""
26 for m in self.materials:
27 diff = [int(cm(c)*255) for c in m.diffuse_color*m.diffuse_intensity]
28 self.diffuse_data += "\\x{:02X}\\x{:02X}\\x{:02X}\\x{:02X}".format(*diff, int(m.ambient*255))
29 self.diffuse_data += "\\x00\\x00\\x00\\x00"*(self.size[0]*self.size[1]-count)
31 def get_material_uv(self, material):
32 index = self.materials.index(material)
33 x = index%self.size[0]
34 y = index//self.size[0]
35 return ((x+0.5)/self.size[0], (y+0.5)/self.size[1])
37 def create_material_map(context, material):
38 if not material.material_map:
39 raise Exception("Material is not part of a material map")
41 tech = material.technique
43 for m in context.blend_data.materials:
44 if m.material_map and m.technique==tech:
47 mat_map = MaterialMap(materials)