From 7ea523d8d30d96c92c5dfc097746a5ad77a63bd3 Mon Sep 17 00:00:00 2001
From: Campbell Barton <ideasman42@gmail.com>
Date: Mon, 26 Aug 2013 18:57:02 +0000
Subject: [PATCH] use the alpha of an image for the alpha channel when using
FBX/Cycles
---
io_scene_fbx/cycles_shader_compat.py | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/io_scene_fbx/cycles_shader_compat.py b/io_scene_fbx/cycles_shader_compat.py
index ae050ec9f..e9874d599 100644
--- a/io_scene_fbx/cycles_shader_compat.py
+++ b/io_scene_fbx/cycles_shader_compat.py
@@ -269,7 +269,7 @@ class CyclesShaderWrapper():
self.node_out.inputs["Displacement"])
@staticmethod
- def _image_create_helper(image, node_dst, sockets_dst):
+ def _image_create_helper(image, node_dst, sockets_dst, use_alpha=False):
tree = node_dst.id_data
nodes = tree.nodes
links = tree.links
@@ -279,7 +279,7 @@ class CyclesShaderWrapper():
node.location = node_dst.location
node.location.x -= CyclesShaderWrapper._col_size
for socket in sockets_dst:
- links.new(node.outputs["Color"],
+ links.new(node.outputs["Alpha" if use_alpha else "Color"],
socket)
return node
@@ -334,7 +334,10 @@ class CyclesShaderWrapper():
def alpha_image_set(self, image):
self.node_bsdf_alpha.mute = False
node = self.node_mix_color_alpha
- self._image_create_helper(image, node, (node.inputs["Color2"],))
+ # note: use_alpha may need to be configurable
+ # its not always the case that alpha channels use the image alpha
+ # a greyscale image may also be used.
+ self._image_create_helper(image, node, (node.inputs["Color2"],), use_alpha=True)
def alpha_image_set_from_diffuse(self):
tree = self.node_mix_color_diff.id_data
--
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