Invert Color Cycles Node

as with the HSV node the OSL code is relying on the (yet to be implemented) autorename.

Also the svm code could use mix (svm_lerp) instead:
 32 . float3 color_inv = make_float3(1.0f, 1.0f, 1.0f) - color;
 35 . . stack_store_float3(stack, out_color, svm_lerp(color_inv, color, factor));

I have a feeling that each node 'program' should have the least program as possible. I'll see with Brecht later.
But overall I don't know if that's any fast. And apart from that I think we will need this kind of function to move to a library if multiple functions linked in are not a problem.

1 files changed, 3 insertions, 0 deletions

diff --git a/intern/cycles/app/cycles_xml.cpp b/intern/cycles/app/cycles_xml.cpp
index 7cd190f877d..530a4ad14d8 100644
--- a/intern/cycles/app/cycles_xml.cpp
+++ b/intern/cycles/app/cycles_xml.cpp
@@ -435,6 +435,9 @@ static void xml_read_shader_graph(const XMLReadState& state, Shader *shader, pug
 		else if(string_iequals(node.name(), "add_closure")) {
 			snode = new AddClosureNode();
 		}
+		else if(string_iequals(node.name(), "invert")) {
+			snode = new InvertNode();
+		}
 		else if(string_iequals(node.name(), "mix")) {
 			MixNode *mix = new MixNode();
 			xml_read_enum(&mix->type, MixNode::type_enum, node, "type");