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Current Progress

v2.3.c (in progress)

  • Core
    • Implemented explicit resource state transitions
    • API Changes
      • Added DRAW_FLAGS and DISPATCH_FLAGS enums that control state transitions of vertex, index and indirect draw arguments buffers
      • Added Uint8 Flags member to DrawAttribs structure (values from DRAW_FLAGS)
      • Added Uint8 Flags member to DispatchComputeAttribs structure (values from DISPATCH_FLAGS)
      • Added RESOURCE_STATE enum
      • Added StateTransitionDesc structure that describes resource state transition
      • Added IDeviceContext::TransitionResourceStates(Uint32 BarrierCount, StateTransitionDesc* pResourceBarriers) method
      • Added IBuffer::SetState(), IBuffer::GetState(), ITexture::SetState(), ITexture::GetState() methods

v2.3.b

  • Core
    • Enabled Vulkan backend on Linux
    • API Changes
      • Implemented separate texture samplers:
        • Added UseCombinedTextureSamplers and CombinedSamplerSuffix members to ShaderCreationAttribs structure
        • When separate samplers are used (UseCombinedTextureSamplers == false), samplers are set in the same way as other shader variables via shader or SRB objects
      • Removed BIND_SHADER_RESOURCES_RESET_BINDINGS flag, renamed BIND_SHADER_RESOURCES_KEEP_EXISTING to BIND_SHADER_RESOURCES_KEEP_EXISTING. Added BIND_SHADER_RESOURCES_UPDATE_STATIC, BIND_SHADER_RESOURCES_UPDATE_MUTABLE, BIND_SHADER_RESOURCES_UPDATE_DYNAMIC, and BIND_SHADER_RESOURCES_UPDATE_ALL flags
    • Using glslang to compile HLSL to SPIRV in Vulkan backend instead of relying on HLSL->GLSL converter

v2.3.a

  • Core

    • Added IFence interface and IDeviceContext::SignalFence() method to enable CPU-GPU synchronization
    • Added BUFFER_MODE_RAW mode allowing raw buffer views in D3D11/D3D12.
    • Moved Format member from BufferDesc to BufferViewDesc
    • Removed IsIndirect member from DrawAttrbis as setting pIndirectDrawAttribs to a non-null buffer already indicates indirect rendering

  • Samples:

    • Added Tutorial 10 - Data Streaming
    • Added Tutorial 11 - Resource Updates

v2.3

  • Core:
    • Implemented Vulkan backend
    • Implemented hardware adapter & display mode enumeration in D3D11 and D3D12 modes
    • Implemented initialization in fullscreen mode as well as toggling between fullscreen and windowed modes in run time
    • Added sync interval parameter to ISwapChain::Present()
    • API Changes
      • Added NumViewports member to GraphicsPipelineDesc struct
      • Removed PRIMITIVE_TOPOLOGY_TYPE type
      • Replaced PRIMITIVE_TOPOLOGY_TYPE GraphicsPipelineDesc::PrimitiveTopologyType with PRIMITIVE_TOPOLOGY GraphicsPipelineDesc::PrimitiveTopology
      • Removed DrawAttribs::Topology
      • Removed pStrides parameter from IDeviceContext::SetVertexBuffers(). Strides are now defined through vertex layout.
  • API Changes:
    • Math library functions SetNearFarClipPlanes(), GetNearFarPlaneFromProjMatrix(), Projection(), OrthoOffCenter(), and Ortho() take bIsGL flag instead of bIsDirectX
    • Vertex buffer strides are now defined by the pipeline state as part of the input layout description (LayoutElement::Stride)
    • Added COMMIT_SHADER_RESOURCES_FLAG_VERIFY_STATES flag
    • Added NumViewports member to GraphicsPipelineDesc structure
  • Samples:
    • Added fullscreen mode selection dialog box
    • Implemented fullscreen mode toggle on UWP with shift + enter
    • Implemented fullscreen window toggle on Win32 with alt + enter
    • Added Tutorial 09 - Quads
  • Fixed the following issues:

v2.2.a

v2.2

  • Added MacOS and iOS support

v2.1.b

  • Removed legacy Visual Studio solution and project files
  • Added API reference
  • Added tutorials 1-8

v2.1.a

  • Refactored build system to use CMake and Gradle for Android
  • Added support for Linux platform

v2.1

New Features

Core

  • Interoperability with native API
    • Accessing internal objects and handles
    • Creating diligent engine buffers/textures from native resources
    • Attaching to existing D3D11/D3D12 device or GL context
    • Resource state and command queue synchronization for D3D12
  • Integraion with Unity
  • Geometry shader support
  • Tessellation support
  • Performance optimizations

HLSL->GLSL converter

  • Support for structured buffers
  • HLSL->GLSL conversion is now a two-stage process:
    • Creating conversion stream
    • Creating GLSL source from the stream
  • Geometry shader support
  • Tessellation control and tessellation evaluation shader support
  • Support for non-void shader functions
  • Allowing structs as input parameters for shader functions

v2.0 (alpha)

Alpha release of Diligent Engine 2.0. The engine has been updated to take advantages of Direct3D12:

  • Pipeline State Object encompasses all coarse-grain state objects like Depth-Stencil State, Blend State, Rasterizer State, shader states etc.

  • New shader resource binding model implemented to leverage Direct3D12

  • OpenGL and Direct3D11 backends

  • Alpha release is only available on Windows platform

  • Direct3D11 backend is very thoroughly optimized and has very low overhead compared to native D3D11 implementation

  • Direct3D12 implementation is preliminary and not yet optimized

v1.0.0

Initial release