Fix T45590: Some more missing glsl functions

Also SSS node was using wrong Normal input index.

2 files changed, 7 insertions, 2 deletions

diff --git a/source/blender/gpu/shaders/gpu_shader_material.glsl b/source/blender/gpu/shaders/gpu_shader_material.glsl
index ea7ab054234..54864b2b185 100644
--- a/source/blender/gpu/shaders/gpu_shader_material.glsl
+++ b/source/blender/gpu/shaders/gpu_shader_material.glsl
@@ -2267,6 +2267,11 @@ void node_bsdf_refraction(vec4 color, float roughness, float ior, vec3 N, out ve
 	node_bsdf_diffuse(color, 0.0, N, result);
 }
 
+void node_ambient_occlusion(vec4 color, out vec4 result)
+{
+	result = color;
+}
+
 /* emission */
 
 void node_emission(vec4 color, float strength, vec3 N, out vec4 result)
diff --git a/source/blender/nodes/shader/nodes/node_shader_subsurface_scattering.c b/source/blender/nodes/shader/nodes/node_shader_subsurface_scattering.c
index 9fe56d4f01d..8c83fa47815 100644
--- a/source/blender/nodes/shader/nodes/node_shader_subsurface_scattering.c
+++ b/source/blender/nodes/shader/nodes/node_shader_subsurface_scattering.c
@@ -60,8 +60,8 @@ static void node_shader_init_subsurface_scattering(bNodeTree *UNUSED(ntree), bNo
 
 static int node_shader_gpu_subsurface_scattering(GPUMaterial *mat, bNode *UNUSED(node), bNodeExecData *UNUSED(execdata), GPUNodeStack *in, GPUNodeStack *out)
 {
-	if (!in[1].link)
-		in[1].link = GPU_builtin(GPU_VIEW_NORMAL);
+	if (!in[5].link)
+		in[5].link = GPU_builtin(GPU_VIEW_NORMAL);
 
 	return GPU_stack_link(mat, "node_subsurface_scattering", in, out);
 }