August 23, 2025

SDK 46

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New Engine features:

• Bloom post-processing.
• Improved temporal antialiasing quality and responsiveness.
• Added a simple procedural texture generator to SceneTexture, supporting grid, checkerboard, Perlin, fractal, noise, and blend functions.
• MaterialMetallic and MaterialSpecular anisotropy direction is specified in the RG components of the auxiliary texture when the clearcoat option is disabled.
• All raw data in scene, graph, and node files is now compressed.
• Compatibility with Wayland window managers.
• Removed WinApp platform support.

Tools changes:

• Added NodeAnimator, NodeOscillator, NodeRotator, and NodeTransformer prefabs to the Tellusim Explorer.
• Executor fetches the target camera transformation matrix for correct assignment to GPU-driven cameras.
• Explorer includes controls for refraction dispersion parameters.
• Explorer can now export and import RenderFrame settings.
• Explorer stores separate UI settings for different desktop configurations (laptop display vs external monitor).
• Option + F hotkey in Explorer hides all controls and maximizes the rendering viewport.
• Project file generator now supports C#, Rust, Swift, Java, JavaScript, and Python templates.
• Browser application interface is now based on the plugins/interface/app plugin.

Plugin changes:

• Added plugins/interface/app plugin for simple single-window desktop applications.
• XeSS upscaler plugin updated to the latest version with Vulkan support.
• DLSS upscaler plugin updated to the latest version.
• Added Stairs and Ramp primitives to plugins/objects/primitives.
• plugins/objects/scattering plugin now supports optional fast-forward blending and a sun billboard.

New samples:

• samples/scenes/materials/material_texture showcases procedural textures.
• samples/scenes/scripts/script_material_background procedural background material with alpha compositing.
• samples/scenes/scripts/script_material_filter simple post-processing material.
• samples/scenes/scripts/script_material_split split post-processing material.
• samples/scenes/scripts/script_mesh_update dynamic vertex buffer updates.
• tests/manual/13_hello_interop simple CUDA API interop.
• tests/native/vk_gtk3_window Vulkan embedding into a GTK3-based window.
• tests/native/gl_gtk3_window OpenGL embedding into a GTK3-based window.
• tests/native/hip_texture AMD HIP texture interop.
• tests/platform/shared simple multi-GPU texture interop for split rendering.
• tests/scene/mesh custom ObjectMesh initialization and dynamic updates.

Sample changes:

• tests/geometry/refine includes UI for refining parameters.
• tests/geometry/reduce includes UI for reduction parameters.

API changes:

• System::exec() prints process output to the log when the new console argument is set.
• MeshRefine::subdiv() accepts a weight parameter to interpolate between the target and original surface.
• CanvasElement supports YOG texture visualization with the CanvasElement::ModeTextureYOG flag.
• SpatialTree enablement flag now uses the highest bit of bound_max.w remaining bits are available for user data.
• Window class supports minimum and maximum window sizes.
• Added support for backward and forward mouse buttons.
• RenderDraw supports YOG texture visualization with the RenderDraw::ModeYOG mode.
• Added bloom configuration parameters to RenderFrame.
• Added bloom rendering pass to RenderRenderer and SceneRenderer.
• Added dedicated RenderRenderer::dispatchExposure() method for external upscalers.
• RenderRenderer::dispatchTonemap() is now required after RenderRenderer::dispatchComposite().
• SceneManager supports fast vertex and index buffer updates and copy operations, similar to storage and scalar buffers.
• Added UniformDiffuseOffset parameter to Metallic and Specular root materials.
• Added UniformSpecularOffset parameter to Specular root material.
• CameraPerspective supports focal-length-based FOV specification.
• Added NodeBase interface for custom node-based logic.
• Added new Blob constructor with a size argument.
• Added Directory::getBinaryDirectory() method.
• Added 3D Perlin noise generation to math/TellusimNoise.h.
• Added default vectors oneX, oneY, oneZ, and oneW to all math/TellusimVector.h classes.
• Scene global identifier generator can now be re-initialized to keep ID values low.

Internal Clay features:

• Shader compiler optimizes integer multiplication and division by powers of two using shift operations.
• MeshOptimizer compares floating-point formats with epsilons of 1e-3f (half), 1e-6f (float), and 1e-12f (double).
• X11 libraries are now loaded dynamically; no X11 dependency for console applications.
• Improved motion vector hash calculation for better stability in complex scenes.
• WebGPU backend migrated from Emscripten to Dawn.
• Added support for the WebGPU cull distance extension.
• Added support for Vulkan 1.4 methods.