GPUDevice: Ensure 16 byte minimum UBO alignment

src/util/opengl_device.cpp

@@ -746,6 +746,7 @@ bool OpenGLDevice::CreateBuffers()
   GL_OBJECT_NAME(m_uniform_buffer, "Device Uniform Buffer");
 
   glGetIntegerv(GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, reinterpret_cast<GLint*>(&m_uniform_buffer_alignment));
+  m_uniform_buffer_alignment = std::max<GLuint>(m_uniform_buffer_alignment, 16);
 
   if (!m_disable_pbo)
   {

src/util/vulkan_device.cpp

@@ -1976,7 +1976,7 @@ bool VulkanDevice::CreateDeviceAndMainSwapChain(std::string_view adapter, Featur
   // Read device physical memory properties, we need it for allocating buffers
   vkGetPhysicalDeviceProperties(m_physical_device, &m_device_properties);
   m_device_properties.limits.minUniformBufferOffsetAlignment =
-    std::max(m_device_properties.limits.minUniformBufferOffsetAlignment, static_cast<VkDeviceSize>(1));
+    std::max(m_device_properties.limits.minUniformBufferOffsetAlignment, static_cast<VkDeviceSize>(16));
   m_device_properties.limits.minTexelBufferOffsetAlignment =
     std::max(m_device_properties.limits.minTexelBufferOffsetAlignment, static_cast<VkDeviceSize>(1));
   m_device_properties.limits.optimalBufferCopyOffsetAlignment =