• engine: Allow both screen-space refraction and screen-space reflections on the same object [⚠️ Material breakage].
• engine: Optimizations for screen-space reflections.
• engine: Remove Viewport::scale() [⚠️ API Change].
• engine: Fix 12x overallocation of memory in MorphTargetBuffer.
• Metal: Fix validation error when reading from default SwapChain.