Cycles: merge of cycles-x branch, a major update to the renderer

This includes much improved GPU rendering performance, viewport interactivity,
new shadow catcher, revamped sampling settings, subsurface scattering anisotropy,
new GPU volume sampling, improved PMJ sampling pattern, and more.

Some features have also been removed or changed, breaking backwards compatibility.
Including the removal of the OpenCL backend, for which alternatives are under
development.

Release notes and code docs:
https://wiki.blender.org/wiki/Reference/Release_Notes/3.0/Cycles
https://wiki.blender.org/wiki/Source/Render/Cycles

Credits:
* Sergey Sharybin
* Brecht Van Lommel
* Patrick Mours (OptiX backend)
* Christophe Hery (subsurface scattering anisotropy)
* William Leeson (PMJ sampling pattern)
* Alaska (various fixes and tweaks)
* Thomas Dinges (various fixes)

For the full commit history, see the cycles-x branch. This squashes together
all the changes since intermediate changes would often fail building or tests.

Ref T87839, T87837, T87836
Fixes T90734, T89353, T80267, T80267, T77185, T69800

1 files changed, 7 insertions, 7 deletions

diff --git a/intern/cycles/util/util_simd.h b/intern/cycles/util/util_simd.h
index 8e8caa98a1b..b4a153c329f 100644
--- a/intern/cycles/util/util_simd.h
+++ b/intern/cycles/util/util_simd.h
@@ -61,14 +61,14 @@ static struct TrueTy {
   {
     return true;
   }
-} True ccl_maybe_unused;
+} True ccl_attr_maybe_unused;
 
 static struct FalseTy {
   __forceinline operator bool() const
   {
     return false;
   }
-} False ccl_maybe_unused;
+} False ccl_attr_maybe_unused;
 
 static struct ZeroTy {
   __forceinline operator float() const
@@ -79,7 +79,7 @@ static struct ZeroTy {
   {
     return 0;
   }
-} zero ccl_maybe_unused;
+} zero ccl_attr_maybe_unused;
 
 static struct OneTy {
   __forceinline operator float() const
@@ -90,7 +90,7 @@ static struct OneTy {
   {
     return 1;
   }
-} one ccl_maybe_unused;
+} one ccl_attr_maybe_unused;
 
 static struct NegInfTy {
   __forceinline operator float() const
@@ -101,7 +101,7 @@ static struct NegInfTy {
   {
     return std::numeric_limits<int>::min();
   }
-} neg_inf ccl_maybe_unused;
+} neg_inf ccl_attr_maybe_unused;
 
 static struct PosInfTy {
   __forceinline operator float() const
@@ -112,10 +112,10 @@ static struct PosInfTy {
   {
     return std::numeric_limits<int>::max();
   }
-} inf ccl_maybe_unused, pos_inf ccl_maybe_unused;
+} inf ccl_attr_maybe_unused, pos_inf ccl_attr_maybe_unused;
 
 static struct StepTy {
-} step ccl_maybe_unused;
+} step ccl_attr_maybe_unused;
 
 #endif