From: Mikko Rasa <tdb@tdb.fi>
Date: Thu, 23 May 2019 21:06:05 +0000 (+0300)
Subject: Add a missing file
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=7b6efe858ba6e649b148c1eb7b2680eed30ee75b;p=libs%2Fgl.git

Add a missing file

It was supposed to be in bde3ec8.
---

diff --git a/blender/io_mspgl/material.py b/blender/io_mspgl/material.py
new file mode 100644
index 00000000..54b2c5d8
--- /dev/null
+++ b/blender/io_mspgl/material.py
@@ -0,0 +1,49 @@
+class MaterialMap:
+	def __init__(self, materials):
+		self.technique = materials[0].technique
+		self.name = "material_map_"+self.technique
+		self.materials = materials
+		self.srgb_colors = materials[0].srgb_colors
+		for m in self.materials:
+			if m.technique!=self.technique:
+				raise Exception("Conflicting techniques in MaterialMap constructor")
+			if m.srgb_colors!=self.srgb_colors:
+				raise Exception("Conflicting colorspace settings in MaterialMap constructor")
+
+		count = len(self.materials)
+		size = 1
+		while size*size*2<count:
+			size *= 2
+		if size*size>=count:
+			self.size = (size, size)
+		else:
+			self.size = (size*2, size)
+
+		from .util import get_colormap
+
+		cm = get_colormap(self.srgb_colors)
+		self.diffuse_data = ""
+		for m in self.materials:
+			diff = [int(cm(c)*255) for c in m.diffuse_color*m.diffuse_intensity]
+			self.diffuse_data += "\\x{:02X}\\x{:02X}\\x{:02X}\\x{:02X}".format(*diff, int(m.ambient*255))
+		self.diffuse_data += "\\x00\\x00\\x00\\x00"*(self.size[0]*self.size[1]-count)
+
+	def get_material_uv(self, material):
+		index = self.materials.index(material)
+		x = index%self.size[0]
+		y = index//self.size[0]
+		return ((x+0.5)/self.size[0], (y+0.5)/self.size[1])
+
+def create_material_map(context, material):
+	if not material.material_map:
+		raise Exception("Material is not part of a material map")
+
+	tech = material.technique
+	materials = []
+	for m in context.blend_data.materials:
+		if m.material_map and m.technique==tech:
+			materials.append(m)
+
+	mat_map = MaterialMap(materials)
+
+	return mat_map