Export texture extension modes from Blender

[libs/gl.git] / blender / io_mspgl / export_texture.py

diff --git a/blender/io_mspgl/export_texture.py b/blender/io_mspgl/export_texture.py
index 3e78a4cd6ee33af497f4cde7d6a27f281490982c..2ffb5246cf448839c9a594e1accd1397c018da79 100644 (file)
--- a/blender/io_mspgl/export_texture.py
+++ b/blender/io_mspgl/export_texture.py
@@ -9,26 +9,15 @@ class TextureExporter:
                from .datafile import Resource, Statement, Token
                tex_res = Resource(image.name+".tex2d", "texture2d")
 
-               use_interpolation = tex_node.interpolation!='Closest'
-               if use_interpolation:
-                       if tex_node.use_mipmap:
-                               tex_res.statements.append(Statement("filter", Token('LINEAR_MIPMAP_LINEAR')))
-                               tex_res.statements.append(Statement("generate_mipmap", True))
-                       else:
-                               tex_res.statements.append(Statement("filter", Token('LINEAR')))
-                       tex_res.statements.append(Statement("max_anisotropy", tex_node.max_anisotropy))
-               else:
-                       if tex_node.use_mipmap:
-                               tex_res.statements.append(Statement("filter", Token('NEAREST_MIPMAP_NEAREST')))
-                               tex_res.statements.append(Statement("generate_mipmap", True))
-                       else:
-                               tex_res.statements.append(Statement("filter", Token('NEAREST')))
+               if tex_node.use_mipmap:
+                       tex_res.statements.append(Statement("generate_mipmap", True))
 
                colorspace = image.colorspace_settings.name
                if usage=='GRAY' and colorspace=='sRGB':
                                raise Exception("Grayscale textures with sRGB colorspace are not supported")
 
-               fn = os.path.basename(image.filepath)
+               from .util import basename
+               fn = basename(image.filepath)
                if not self.inline_data and fn:
                        srgb = "_srgb" if colorspace=='sRGB' else ""
                        tex_res.statements.append(Statement("external_image"+srgb, fn))
@@ -56,3 +45,45 @@ class TextureExporter:
                        tex_res.statements.append(Statement("raw_data", texdata))
 
                return tex_res
+
+class SamplerExporter:
+       def export_sampler(self, tex_node):
+               from .datafile import Resource, Statement, Token
+               samp_res = Resource(self.get_sampler_name(tex_node), "sampler")
+
+               use_interpolation = tex_node.interpolation!='Closest'
+               if use_interpolation:
+                       if tex_node.use_mipmap:
+                               samp_res.statements.append(Statement("filter", Token('LINEAR_MIPMAP_LINEAR')))
+                       else:
+                               samp_res.statements.append(Statement("filter", Token('LINEAR')))
+                       samp_res.statements.append(Statement("max_anisotropy", tex_node.max_anisotropy))
+               else:
+                       if tex_node.use_mipmap:
+                               samp_res.statements.append(Statement("filter", Token('NEAREST_MIPMAP_NEAREST')))
+                       else:
+                               samp_res.statements.append(Statement("filter", Token('NEAREST')))
+
+               if tex_node.extension=="REPEAT":
+                       samp_res.statements.append(Statement("wrap", Token('REPEAT')))
+               elif tex_node.extension=="EXTEND":
+                       samp_res.statements.append(Statement("wrap", Token('CLAMP_TO_EDGE')))
+               elif tex_node.extension=="CLIP":
+                       samp_res.statements.append(Statement("wrap", Token('CLAMP_TO_BORDER')))
+                       samp_res.statements.append(Statement("border_color", 0.0, 0.0, 0.0, 0.0))
+
+               return samp_res
+
+       def get_sampler_name(self, tex_node):
+               name_parts = []
+
+               use_interpolation = tex_node.interpolation!='Closest'
+               name_parts.append("linear" if use_interpolation else "nearest")
+               if tex_node.use_mipmap:
+                       name_parts.append("mip")
+               if use_interpolation and tex_node.max_anisotropy>1:
+                       name_parts.append("aniso{:g}x".format(tex_node.max_anisotropy))
+               if tex_node.extension!="REPEAT":
+                       name_parts.append("clip" if tex_node.extension=="CLIP" else "clamp")
+
+               return "_".join(name_parts)+".samp"