[Bf-blender-cvs] [fc2b8c9] blender-v2.78-release: Fix T49372: Fresnel node: difference between 2.76 and 2.78 GLSL output

[Sergey Sharybin]

Commit: fc2b8c9793b55ca9674f46816028435ee50473c7
Author: Sergey Sharybin
Date:   Fri Sep 16 11:48:42 2016 +0200
Branches: blender-v2.78-release
https://developer.blender.org/rBfc2b8c9793b55ca9674f46816028435ee50473c7

Fix T49372: Fresnel node: difference between 2.76 and 2.78 GLSL output

===================================================================

M       source/blender/nodes/shader/nodes/node_shader_fresnel.c

===================================================================

diff --git a/source/blender/nodes/shader/nodes/node_shader_fresnel.c 
b/source/blender/nodes/shader/nodes/node_shader_fresnel.c
index b50f722..ef2ce99 100644
--- a/source/blender/nodes/shader/nodes/node_shader_fresnel.c
+++ b/source/blender/nodes/shader/nodes/node_shader_fresnel.c
@@ -41,10 +41,12 @@ static bNodeSocketTemplate sh_node_fresnel_out[] = {
 
 static int node_shader_gpu_fresnel(GPUMaterial *mat, bNode *UNUSED(node), 
bNodeExecData *UNUSED(execdata), GPUNodeStack *in, GPUNodeStack *out)
 {
-       if (!in[1].link)
+       if (!in[1].link) {
                in[1].link = GPU_builtin(GPU_VIEW_NORMAL);
-       else
+       }
+       else if (GPU_material_use_world_space_shading(mat)) {
                GPU_link(mat, "direction_transform_m4v3", in[1].link, 
GPU_builtin(GPU_VIEW_MATRIX), &in[1].link);
+       }
        
        return GPU_stack_link(mat, "node_fresnel", in, out, 
GPU_builtin(GPU_VIEW_POSITION));
 }

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