Fix T101790: MNEE caustic settings are not visible in the UI when using Metal

This patch fixes T101790 by adding a macOS version check for deciding whether to show the caustics settings in the UI  (MNEE kernels don't compile on macOS < 13.0)

Reviewed By: brecht

Maniphest Tasks: T101790

Differential Revision: https://developer.blender.org/D16339

1 files changed, 10 insertions, 2 deletions

diff --git a/intern/cycles/blender/addon/ui.py b/intern/cycles/blender/addon/ui.py
index f763fe0eb0b..581533db0b6 100644
--- a/intern/cycles/blender/addon/ui.py
+++ b/intern/cycles/blender/addon/ui.py
@@ -149,6 +149,14 @@ def get_effective_preview_denoiser(context):
 
     return 'OIDN'
 
+def use_mnee(context):
+    # The MNEE kernel doesn't compile on macOS < 13.
+    if use_metal(context):
+        import platform
+        v, _, _ = platform.mac_ver()
+        if float(v) < 13.0:
+            return False
+    return True
 
 class CYCLES_RENDER_PT_sampling(CyclesButtonsPanel, Panel):
     bl_label = "Sampling"
@@ -1235,7 +1243,7 @@ class CYCLES_OBJECT_PT_shading_caustics(CyclesButtonsPanel, Panel):
 
     @classmethod
     def poll(cls, context):
-        return CyclesButtonsPanel.poll(context) and not use_metal(context) and context.object.type != 'LIGHT'
+        return CyclesButtonsPanel.poll(context) and use_mnee(context) and context.object.type != 'LIGHT'
 
     def draw(self, context):
         layout = self.layout
@@ -1449,7 +1457,7 @@ class CYCLES_LIGHT_PT_light(CyclesButtonsPanel, Panel):
         sub.active = not (light.type == 'AREA' and clamp.is_portal)
         sub.prop(clamp, "cast_shadow")
         sub.prop(clamp, "use_multiple_importance_sampling", text="Multiple Importance")
-        if not use_metal(context):
+        if use_mnee(context):
             sub.prop(clamp, "is_caustics_light", text="Shadow Caustics")
 
         if light.type == 'AREA':