diff --git a/source/blender/blenlib/intern/array_utils.cc b/source/blender/blenlib/intern/array_utils.cc
index ff190f2513a..89b63dcc4d3 100644
--- a/source/blender/blenlib/intern/array_utils.cc
+++ b/source/blender/blenlib/intern/array_utils.cc
@@ -113,13 +113,14 @@ BooleanMix booleans_mix_calc(const VArray<bool> &varray, const IndexRange range_
           }
 
           const Span<bool> slice = span.slice(range);
-          const bool first = slice.first();
-          for (const bool value : slice.drop_front(1)) {
-            if (value != first) {
+          const bool compare_value = (init == BooleanMix::None) ? slice.first() :
+                                                                  (init == BooleanMix::AllTrue);
+          for (const bool value : slice) {
+            if (value != compare_value) {
               return BooleanMix::Mixed;
             }
           }
-          return first ? BooleanMix::AllTrue : BooleanMix::AllFalse;
+          return compare_value ? BooleanMix::AllTrue : BooleanMix::AllFalse;
         },
         [&](BooleanMix a, BooleanMix b) { return (a == b) ? a : BooleanMix::Mixed; });
   }
diff --git a/source/blender/gpu/dummy/dummy_backend.hh b/source/blender/gpu/dummy/dummy_backend.hh
index 3cd88bacb41..566bb679c1d 100644
--- a/source/blender/gpu/dummy/dummy_backend.hh
+++ b/source/blender/gpu/dummy/dummy_backend.hh
@@ -63,7 +63,7 @@ class DummyBackend : public GPUBackend {
   {
     return nullptr;
   }
-  PixelBuffer *pixelbuf_alloc(uint /*size*/) override
+  PixelBuffer *pixelbuf_alloc(size_t /*size*/) override
   {
     return nullptr;
   }
@@ -79,11 +79,11 @@ class DummyBackend : public GPUBackend {
   {
     return nullptr;
   }
-  UniformBuf *uniformbuf_alloc(int /*size*/, const char * /*name*/) override
+  UniformBuf *uniformbuf_alloc(size_t /*size*/, const char * /*name*/) override
   {
     return nullptr;
   }
-  StorageBuf *storagebuf_alloc(int /*size*/,
+  StorageBuf *storagebuf_alloc(size_t /*size*/,
                                GPUUsageType /*usage*/,
                                const char * /*name*/) override
   {
diff --git a/source/blender/gpu/intern/gpu_backend.hh b/source/blender/gpu/intern/gpu_backend.hh
index d9c824cf01e..fe938ebb6df 100644
--- a/source/blender/gpu/intern/gpu_backend.hh
+++ b/source/blender/gpu/intern/gpu_backend.hh
@@ -48,12 +48,12 @@ class GPUBackend {
   virtual Fence *fence_alloc() = 0;
   virtual FrameBuffer *framebuffer_alloc(const char *name) = 0;
   virtual IndexBuf *indexbuf_alloc() = 0;
-  virtual PixelBuffer *pixelbuf_alloc(uint size) = 0;
+  virtual PixelBuffer *pixelbuf_alloc(size_t size) = 0;
   virtual QueryPool *querypool_alloc() = 0;
   virtual Shader *shader_alloc(const char *name) = 0;
   virtual Texture *texture_alloc(const char *name) = 0;
-  virtual UniformBuf *uniformbuf_alloc(int size, const char *name) = 0;
-  virtual StorageBuf *storagebuf_alloc(int size, GPUUsageType usage, const char *name) = 0;
+  virtual UniformBuf *uniformbuf_alloc(size_t size, const char *name) = 0;
+  virtual StorageBuf *storagebuf_alloc(size_t size, GPUUsageType usage, const char *name) = 0;
   virtual VertBuf *vertbuf_alloc() = 0;
 
   /* Render Frame Coordination --
diff --git a/source/blender/gpu/metal/mtl_backend.hh b/source/blender/gpu/metal/mtl_backend.hh
index ae77d9e99d0..b22bdf8f711 100644
--- a/source/blender/gpu/metal/mtl_backend.hh
+++ b/source/blender/gpu/metal/mtl_backend.hh
@@ -64,12 +64,12 @@ class MTLBackend : public GPUBackend {
   Fence *fence_alloc() override;
   FrameBuffer *framebuffer_alloc(const char *name) override;
   IndexBuf *indexbuf_alloc() override;
-  PixelBuffer *pixelbuf_alloc(uint size) override;
+  PixelBuffer *pixelbuf_alloc(size_t size) override;
   QueryPool *querypool_alloc() override;
   Shader *shader_alloc(const char *name) override;
   Texture *texture_alloc(const char *name) override;
-  UniformBuf *uniformbuf_alloc(int size, const char *name) override;
-  StorageBuf *storagebuf_alloc(int size, GPUUsageType usage, const char *name) override;
+  UniformBuf *uniformbuf_alloc(size_t size, const char *name) override;
+  StorageBuf *storagebuf_alloc(size_t size, GPUUsageType usage, const char *name) override;
   VertBuf *vertbuf_alloc() override;
 
   /* Render Frame Coordination. */
diff --git a/source/blender/gpu/metal/mtl_backend.mm b/source/blender/gpu/metal/mtl_backend.mm
index 76169863a9f..b10c314b7e6 100644
--- a/source/blender/gpu/metal/mtl_backend.mm
+++ b/source/blender/gpu/metal/mtl_backend.mm
@@ -73,7 +73,7 @@ IndexBuf *MTLBackend::indexbuf_alloc()
   return new MTLIndexBuf();
 };
 
-PixelBuffer *MTLBackend::pixelbuf_alloc(uint size)
+PixelBuffer *MTLBackend::pixelbuf_alloc(size_t size)
 {
   return new MTLPixelBuffer(size);
 };
@@ -93,12 +93,12 @@ Texture *MTLBackend::texture_alloc(const char *name)
   return new gpu::MTLTexture(name);
 }
 
-UniformBuf *MTLBackend::uniformbuf_alloc(int size, const char *name)
+UniformBuf *MTLBackend::uniformbuf_alloc(size_t size, const char *name)
 {
   return new MTLUniformBuf(size, name);
 };
 
-StorageBuf *MTLBackend::storagebuf_alloc(int size, GPUUsageType usage, const char *name)
+StorageBuf *MTLBackend::storagebuf_alloc(size_t size, GPUUsageType usage, const char *name)
 {
   return new MTLStorageBuf(size, usage, name);
 }
diff --git a/source/blender/gpu/metal/mtl_texture.hh b/source/blender/gpu/metal/mtl_texture.hh
index 76aff9b88a9..d97e8cffd3b 100644
--- a/source/blender/gpu/metal/mtl_texture.hh
+++ b/source/blender/gpu/metal/mtl_texture.hh
@@ -481,7 +481,7 @@ class MTLPixelBuffer : public PixelBuffer {
   id<MTLBuffer> buffer_ = nil;
 
  public:
-  MTLPixelBuffer(uint size);
+  MTLPixelBuffer(size_t size);
   ~MTLPixelBuffer();
 
   void *map() override;
diff --git a/source/blender/gpu/metal/mtl_texture.mm b/source/blender/gpu/metal/mtl_texture.mm
index 71d75a3a2e8..96037e6a14f 100644
--- a/source/blender/gpu/metal/mtl_texture.mm
+++ b/source/blender/gpu/metal/mtl_texture.mm
@@ -2596,7 +2596,7 @@ id<MTLTexture> MTLTexture::get_non_srgb_handle()
 /** \name Pixel Buffer
  * \{ */
 
-MTLPixelBuffer::MTLPixelBuffer(uint size) : PixelBuffer(size)
+MTLPixelBuffer::MTLPixelBuffer(size_t size) : PixelBuffer(size)
 {
   /* Ensure buffer satisfies the alignment of 256 bytes for copying
    * data between buffers and textures. As specified in:
diff --git a/source/blender/gpu/opengl/gl_backend.hh b/source/blender/gpu/opengl/gl_backend.hh
index 4635de1d402..13dfd9a3774 100644
--- a/source/blender/gpu/opengl/gl_backend.hh
+++ b/source/blender/gpu/opengl/gl_backend.hh
@@ -106,7 +106,7 @@ class GLBackend : public GPUBackend {
     return new GLIndexBuf();
   };
 
-  PixelBuffer *pixelbuf_alloc(uint size) override
+  PixelBuffer *pixelbuf_alloc(size_t size) override
   {
     return new GLPixelBuffer(size);
   };
@@ -126,12 +126,12 @@ class GLBackend : public GPUBackend {
     return new GLTexture(name);
   };
 
-  UniformBuf *uniformbuf_alloc(int size, const char *name) override
+  UniformBuf *uniformbuf_alloc(size_t size, const char *name) override
   {
     return new GLUniformBuf(size, name);
   };
 
-  StorageBuf *storagebuf_alloc(int size, GPUUsageType usage, const char *name) override
+  StorageBuf *storagebuf_alloc(size_t size, GPUUsageType usage, const char *name) override
   {
     return new GLStorageBuf(size, usage, name);
   };
diff --git a/source/blender/gpu/opengl/gl_texture.cc b/source/blender/gpu/opengl/gl_texture.cc
index a99d55df2e6..0c06c200ad8 100644
--- a/source/blender/gpu/opengl/gl_texture.cc
+++ b/source/blender/gpu/opengl/gl_texture.cc
@@ -768,7 +768,7 @@ uint GLTexture::gl_bindcode_get() const
 /** \name Pixel Buffer
  * \{ */
 
-GLPixelBuffer::GLPixelBuffer(uint size) : PixelBuffer(size)
+GLPixelBuffer::GLPixelBuffer(size_t size) : PixelBuffer(size)
 {
   glGenBuffers(1, &gl_id_);
   BLI_assert(gl_id_);
diff --git a/source/blender/gpu/opengl/gl_texture.hh b/source/blender/gpu/opengl/gl_texture.hh
index 58d93bea676..806c7f74b60 100644
--- a/source/blender/gpu/opengl/gl_texture.hh
+++ b/source/blender/gpu/opengl/gl_texture.hh
@@ -132,7 +132,7 @@ class GLPixelBuffer : public PixelBuffer {
   GLuint gl_id_ = 0;
 
  public:
-  GLPixelBuffer(uint size);
+  GLPixelBuffer(size_t size);
   ~GLPixelBuffer();
 
   void *map() override;
diff --git a/source/blender/gpu/vulkan/vk_backend.cc b/source/blender/gpu/vulkan/vk_backend.cc
index 4c8f5f0ceb9..1d9b0979e4e 100644
--- a/source/blender/gpu/vulkan/vk_backend.cc
+++ b/source/blender/gpu/vulkan/vk_backend.cc
@@ -207,7 +207,7 @@ IndexBuf *VKBackend::indexbuf_alloc()
   return new VKIndexBuffer();
 }
 
-PixelBuffer *VKBackend::pixelbuf_alloc(uint size)
+PixelBuffer *VKBackend::pixelbuf_alloc(size_t size)
 {
   return new VKPixelBuffer(size);
 }
@@ -227,12 +227,12 @@ Texture *VKBackend::texture_alloc(const char *name)
   return new VKTexture(name);
 }
 
-UniformBuf *VKBackend::uniformbuf_alloc(int size, const char *name)
+UniformBuf *VKBackend::uniformbuf_alloc(size_t size, const char *name)
 {
   return new VKUniformBuffer(size, name);
 }
 
-StorageBuf *VKBackend::storagebuf_alloc(int size, GPUUsageType usage, const char *name)
+StorageBuf *VKBackend::storagebuf_alloc(size_t size, GPUUsageType usage, const char *name)
 {
   return new VKStorageBuffer(size, usage, name);
 }
diff --git a/source/blender/gpu/vulkan/vk_backend.hh b/source/blender/gpu/vulkan/vk_backend.hh
index 107af4c77ed..46461150d25 100644
--- a/source/blender/gpu/vulkan/vk_backend.hh
+++ b/source/blender/gpu/vulkan/vk_backend.hh
@@ -58,12 +58,12 @@ class VKBackend : public GPUBackend {
   Fence *fence_alloc() override;
   FrameBuffer *framebuffer_alloc(const char *name) override;
   IndexBuf *indexbuf_alloc() override;
-  PixelBuffer *pixelbuf_alloc(uint size) override;
+  PixelBuffer *pixelbuf_alloc(size_t size) override;
   QueryPool *querypool_alloc() override;
   Shader *shader_alloc(const char *name) override;
   Texture *texture_alloc(const char *name) override;
-  UniformBuf *uniformbuf_alloc(int size, const char *name) override;
-  StorageBuf *storagebuf_alloc(int size, GPUUsageType usage, const char *name) override;
+  UniformBuf *uniformbuf_alloc(size_t size, const char *name) override;
+  StorageBuf *storagebuf_alloc(size_t size, GPUUsageType usage, const char *name) override;
   VertBuf *vertbuf_alloc() override;
 
   /* Render Frame Coordination --
diff --git a/source/blender/gpu/vulkan/vk_buffer.cc b/source/blender/gpu/vulkan/vk_buffer.cc
index b946868e65e..cdc89f923ff 100644
--- a/source/blender/gpu/vulkan/vk_buffer.cc
+++ b/source/blender/gpu/vulkan/vk_buffer.cc
@@ -51,7 +51,7 @@ static VkMemoryPropertyFlags vma_preferred_flags(const bool is_host_visible)
  * staging buffer can be skipped, or in case of a vertex buffer an intermediate buffer can be
  * removed.
  */
-bool VKBuffer::create(int64_t size_in_bytes,
+bool VKBuffer::create(size_t size_in_bytes,
                       GPUUsageType usage,
                       VkBufferUsageFlags buffer_usage,
                       const bool is_host_visible)
diff --git a/source/blender/gpu/vulkan/vk_buffer.hh b/source/blender/gpu/vulkan/vk_buffer.hh
index a30e1c000aa..df78d21e0e3 100644
--- a/source/blender/gpu/vulkan/vk_buffer.hh
+++ b/source/blender/gpu/vulkan/vk_buffer.hh
@@ -19,7 +19,7 @@ class VKContext;
  * Class for handing vulkan buffers (allocation/updating/binding).
  */
 class VKBuffer {
-  int64_t size_in_bytes_ = 0;
+  size_t size_in_bytes_ = 0;
   VkBuffer vk_buffer_ = VK_NULL_HANDLE;
   VmaAllocation allocation_ = VK_NULL_HANDLE;
   /* Pointer to the virtually mapped memory. */
@@ -31,7 +31,7 @@ class VKBuffer {
 
   /** Has this buffer been allocated? */
   bool is_allocated() const;
-  bool create(int64_t size,
+  bool create(size_t size,
               GPUUsageType usage,
               VkBufferUsageFlags buffer_usage,
               bool is_host_visible = true);
diff --git a/source/blender/gpu/vulkan/vk_pixel_buffer.cc b/source/blender/gpu/vulkan/vk_pixel_buffer.cc
index c0f37eda055..684f9ac6b72 100644
--- a/source/blender/gpu/vulkan/vk_pixel_buffer.cc
+++ b/source/blender/gpu/vulkan/vk_pixel_buffer.cc
@@ -12,7 +12,7 @@
 
 namespace blender::gpu {
 
-VKPixelBuffer::VKPixelBuffer(int64_t size) : PixelBuffer(size)
+VKPixelBuffer::VKPixelBuffer(size_t size) : PixelBuffer(size)
 {
   buffer_.create(
       size, GPU_USAGE_STATIC, VK_BUFFER_USAGE_TRANSFER_SRC_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT);
diff --git a/source/blender/gpu/vulkan/vk_pixel_buffer.hh b/source/blender/gpu/vulkan/vk_pixel_buffer.hh
index e7a2ee93e78..a7860f7e3c8 100644
--- a/source/blender/gpu/vulkan/vk_pixel_buffer.hh
+++ b/source/blender/gpu/vulkan/vk_pixel_buffer.hh
@@ -18,7 +18,7 @@ class VKPixelBuffer : public PixelBuffer {
   VKBuffer buffer_;
 
  public:
-  VKPixelBuffer(int64_t size);
+  VKPixelBuffer(size_t size);
   void *map() override;
   void unmap() override;
   int64_t get_native_handle() override;
diff --git a/source/blender/gpu/vulkan/vk_storage_buffer.cc b/source/blender/gpu/vulkan/vk_storage_buffer.cc
index f559947e21f..5776878151f 100644
--- a/source/blender/gpu/vulkan/vk_storage_buffer.cc
+++ b/source/blender/gpu/vulkan/vk_storage_buffer.cc
@@ -15,7 +15,7 @@
 
 namespace blender::gpu {
 
-VKStorageBuffer::VKStorageBuffer(int size, GPUUsageType usage, const char *name)
+VKStorageBuffer::VKStorageBuffer(size_t size, GPUUsageType usage, const char *name)
     : StorageBuf(size, name), usage_(usage)
 {
 }
diff --git a/source/blender/gpu/vulkan/vk_storage_buffer.hh b/source/blender/gpu/vulkan/vk_storage_buffer.hh
index 3457d1b84a2..ab9ffc530cf 100644
--- a/source/blender/gpu/vulkan/vk_storage_buffer.hh
+++ b/source/blender/gpu/vulkan/vk_storage_buffer.hh
@@ -24,7 +24,7 @@ class VKStorageBuffer : public StorageBuf, public VKBindableResource {
   VKBuffer buffer_;
 
  public:
-  VKStorageBuffer(int size, GPUUsageType usage, const char *name);
+  VKStorageBuffer(size_t size, GPUUsageType usage, const char *name);
 
   void update(const void *data) override;
   void bind(int slot) override;
diff --git a/source/blender/gpu/vulkan/vk_uniform_buffer.hh b/source/blender/gpu/vulkan/vk_uniform_buffer.hh
index 71ad2958d61..7abf06f4798 100644
--- a/source/blender/gpu/vulkan/vk_uniform_buffer.hh
+++ b/source/blender/gpu/vulkan/vk_uniform_buffer.hh
@@ -21,7 +21,7 @@ class VKUniformBuffer : public UniformBuf, public VKBindableResource, NonCopyabl
   VKBuffer buffer_;
 
  public:
-  VKUniformBuffer(int size, const char *name) : UniformBuf(size, name) {}
+  VKUniformBuffer(size_t size, const char *name) : UniformBuf(size, name) {}
 
   void update(const void *data) override;
   void clear_to_zero() override;