Release Notes

This page lists all features, changes, and fixes by SpeedTree Runtime SDK version number. For more details on the latest major version, refer to the What's new page of the manual.

[10.0.1] - 2024-09-24

Requirements

  • Ensure SpeedTree Modeler version 9.1.1 or newer is installed to compile .stsdk models compatible with this Runtime SDK release.

Features

In SpeedTree Viewer:

  • SpeedTree Viewer is now fully supported under Mac and Linux.
  • Rendering pipeline now adheres strictly to OpenGL 3.2 Core Profile (and GLSL version 1.40), with Compatibility Profile no longer supported.

Changes

In SpeedTree Viewer:

  • The cmake file has been updated and no longer uses vcpkg to download dependencies. All dependency source code is included and compiled with the application.
  • The src/ folder was renamed to source/.
  • Because OpenGL Core Profile does not support line thicknesses above 1.0, the 3D ortho axes are now rendered as polygons using a custom shader, not the fixed-function pipeline.
  • For better cross-platform compatibility, a lower shader version was targeted and the layout(location = X) shader syntax was replaced with manual shader attribute binding, now handled in ShaderProgram::LookupAndBindAttributes.
  • The Renderer class has been refactored into three distinct classes for better separation of responsibilities:
    • Renderer remains the main rendering class, with .spm- and .stsdk-specific rendering functionality extracted into dedicated classes. This class also includes the updated axes-rendering logic.
    • RendererStsdk now encapsulates all Runtime SDK-related rendering logic.
    • RendererSpm now encapsulates all Pipeline SDK-related rendering logic.
  • Added more thorough OpenGL error-checking.
  • Console prints now echo to stderr.
  • Added V-sync control, defaulting to true to limit GPU use if desired.
  • The initial call to the Pipeline SDK is now StpInit (before the first StpNew call), aligning with our recommended best practices.
  • Replaced all Filename*() utility functions with std::filesystem calls.
  • Replaced all mempcy calls with std::memcpy.
  • Replaced MyPerspective utility function with std::perspective.

Fixes

In SpeedTree Viewer:

  • Modified the GlfwReshape function for correct window-resizing on Mac.
  • Initial wind direction was incorrect – fixed in Model::Load function.
  • Updated the ShaderProgram::Init function to enhance cross-platform compatibility.
    • Specifically, when manually binding shader uniforms and attributes (instead of using the layout(location = X) syntax, which is avoided to maintain compatibility with lower shader versions), special attention is required for the timing and frequency of glLinkProgram calls.
    • This ensures correct binding behavior across Windows (particularly on integrated graphics systems), macOS, and Linux platforms.
  • Adjusted some threading timing to TextureLoader::LoadAll to avoid a potential lockup condition sometimes seen on Linux.

[10.0.0] - 2024-08-14

Features

  • Games SDK Rebranded To Runtime SDK.
  • Renewed Linux Support.
  • C++20 Support.
  • Xbox Series X/S Builds.
  • PlayStation 5 Builds.

Changes

  • Build Type Naming Convention Change (Windows).
  • Standard Vertex Packers/Shaders Updated.
  • SpeedWindTree.h Updates.
  • GLEW_STATIC Declaration Moved.
  • Linux Changes.
  • Win32/32-bit Builds Removed From DirectX12 Reference Application.
  • Core Library Changes.
  • Reference Application Changes.

Fixes

  • Windows Visual Studio Project Alignment.
  • OpenGL Reference Application Bug Fixes (Windows).