Release v2.4.c is out: Vulkan on iOS, GLTF2.0, PBR, shadows, dear imgui, new tutorials and more

This release enables Vulkan on iOS, implements many API improvements and introduces a number of higher-level features.

General

• Enabled Vulkan on iOS
• Major improvements to OpenGL backend
• Replaced AntTweakBar UI library with dear imgui
• Added GLTF2.0 loader and PBR renderer
• Added GLTF Viewer

• Added Shadowing Component and Shadows Sample
  

• Added Dear Imgui demo
  
• Added Tutorial13 – Shadow Map
  
• Added Tutorial14 – Compute Shader
  
• Added Tutorial15 – Multiple Windows

• Removed AntTweakBar sample

API Changes

• Moved

  NumDeferredContexts

   parameter from factory functions

  IEngineFactoryD3D11::CreateDeviceAndContextsD3D11

  ,

  IEngineFactoryD3D12::CreateDeviceAndContextsD3D12

   and

  IEngineFactoryVk::CreateDeviceAndContextsVk

   to

  EngineCreateInfo

   struct.
• Renamed

  USAGE_CPU_ACCESSIBLE

   ->

  USAGE_STAGING

• Added

  SWAP_CHAIN_USAGE_FLAGS

   enum
• Replaced overloaded

  IPipelineState::GetStaticShaderVariable()

   with

  IPipelineState::GetStaticVariableByName()

   and

  IPipelineState::GetStaticVariableByIndex()

• Replaced overloaded

  IShaderResourceBinding::GetVariable()

   with

  IShaderResourceBinding::GetVariableByName()

   and

  IShaderResourceBinding::GetVariableByIndex()

• Made

  IShaderSourceInputStreamFactory

   derived from

  IObject

  ; added

  IEngineFactory::CreateDefaultShaderSourceStreamFactory()

    method; added

  IRenderDevice::GetEngineFactory()

   method
• Added

  DRAW_FLAG_VERIFY_DRAW_ATTRIBS

  ,

  DRAW_FLAG_VERIFY_RENDER_TARGETS

  , and

  DRAW_FLAG_VERIFY_ALL

   flags
  Added

  TEXTURE_VIEW_FLAGS

    enum and

  Flags

    member to

  TextureViewDesc

   structure
• Added

  IShaderResourceVariable::IsBound()

   method
• Added

  Diligent-

    prefix to project names to avoid name conflicts.
• Added

  IDeviceContextD3D12::GetD3D12CommandList

   method
• Added

  IDeviceContext::WaitForFence()

   method
• Added

  IDeviceContext::WaitForIdle()

   method
• Added

  IRenderDevice::IdleGPU()

   method
• Added

  EngineD3D12CreateInfo::EnableDebugLayer

    member
• Added

  EngineD3D12CreateInfo::BreakOnError

    and

  EngineD3D12CreateInfo::BreakOnCorruption

   members