August 9, 2026

SDK 49

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Highlights

• GeometryFlow editor for node-based procedural geometry creation and deformation.
• Particle simulation plugin with GPU-based 2D and 3D particle systems.
• Custom scene types can be serialized and stored in scene files.
• RmlUi plugin for HTML/CSS-based interfaces.
• Box3D physics plugin.
• New demo with flow-based Car paint material and logic.

Tools changes:

• Added GeometryFlow plugin to Explorer.
• Box3D plugin has been added to Explorer.
• Added SDF Object template to ShadingFlow.
• Explorer has been migrated to internal menus.
• Handle manipulator support has been added to Explorer extensions.
• Object Flags and Material Options are now in a foldable ControlGroup.
• Improved object transformation when objects are dropped into the scene in Explorer.
• Improved material focusing behavior in Explorer.
• Explorer can export all script sources from the scene.
• NodeScriptScattering plugin now automatically updates the environment.

Plugins changes:

• New Box3D physics plugin.
• New RmlUi plugin for HTML/CSS-based interfaces.
• New GeometryFlow plugin provides a node-based, flow-driven geometry creation system.
• New Particles plugin provides a universal GPU-based 2D and 3D particle simulation system.
• New ControlFlowMath plugin enables runtime evaluation of Flow graphs on CPU.
• New OpenCL plugin provides a lightweight OpenCL loader for rapid prototyping.
• Many usability improvements to the ControlFlow plugin.
• The Popup plugin includes methods for simple menu creation.
• ControlFlow now supports user pointers and data for inputs, outputs, nodes, and protos.
• ControlFlow now supports automatic input node creation.
• ControlFlow now supports disconnecting nodes by dropping connections from inputs.
• ControlFlow scalar input protos now store their range in the node state.
• ControlFlowGLSL adds Box, Sphere, Cylinder, and Extrude SDF operations.
• The “ray_march” and “deferred_metallic” protos have been added to ShadingFlow.
• The “name”, “scatter”, “array”, “cable”, “path”, “split”, “boolean”, and “fracture” protos have been added to GeometryFlow.
• Improved precision of cylinder and tube primitives.
• Transparent radius has been added to the scattering plugin.
• The primitives plugin adds cap tessellation and rotation support for Cylinder and Tube types.
• Cylinder and Tube types support zero tessellation levels to disable caps or sides.
• Rust API enums are now represented as custom structures for better language compatibility.

New samples:

• geometry/boolean is a new MeshBoolean test.
• geometry/fracture is a new MeshFracture test.
• native/vk_spirv is a new native SPIR-V shader loading example.
• native/sycl_texture, sycl_runtime demonstrate SYCL interop.
• native/ze_texture, ze_runtime demonstrate Level Zero interop.
• scene/node demonstrates custom Node serialization.
• render_forward – forward pass BRDF with access to ambient occlusion.
• object_flow_boolean, object_flow_coplanar, object_flow_difference, object_flow_intersection are new Mesh boolean samples.
• object_flow_array – object instantiation.
• object_flow_cable – cable path between points.
• object_flow_gear – angular wave for gears.
• object_flow_line – line primitive.
• object_flow_path – placing object along the path.
• object_flow_needles – instance scattering over path.
• object_flow_scatter – instance scattering over surface.
• object_flow_split – split plane.
• object_flow_bend bends geometry along an axis.
• object_flow_noise deforms geometry using fractal noise.
• object_flow_scale scales geometry with optional volume preservation.
• object_flow_stairs creates compound geometry from different parts.
• object_flow_sweep instances geometry along a path.
• object_flow_twist twists geometry around an axis.
• object_flow_wave applies wave-based deformation.
• material_flow_fog – fog object.
• material_flow_marching – volume marching.
• material_flow_sdf_cell – sdf cell noise.
• material_flow_sphere demonstrates ray-sphere intersection.
• material_flow_stencil demonstrates two-sided stencil buffer.
• material_flow_sdf demonstrates SDF object tracing.
• material_flow_screen demonstrates render screen texture.
• material_flow_project demonstrates projected decals.
• material_flow_box demonstrates ray-box intersection.
• script_node_flow_location – ObjectNode animation.
• script_material_flow_noise demonstrates fractal noise.

API changes:

• Device::Feature provides verbose Mesh shader parameters.
• MeshBoolean operations are available in the MeshBoolean namespace.
• MeshFracture namespace provides simple interface for configurable mesh fractures.
• Mesh attribute optimizer receives threshold parameter. Negative value performs bit comparison, zero value performs type-specific threshold, positive value is an explicit threshold value.
• MeshIndices/MeshAttribute::setSize() returns true if allocation was successful. Incremental resizes up to 16 elements use reserve allocation with a 1.5 size multiplier.
• MeshGeometry::optimizeOrder() optimizes attribute and index order within MeshGeometry.
• MeshGeometry::addGeometry() adds geometry with matching layout requirements.
• MeshGeometry::flipWinding() flips index order and inverts normals.
• MeshAttribute transformations now support packed tangent basis.
• Added dedicated MeshAttribute scale-only transformation method.
• The MeshSplit::split() function splits the mesh by plane and produces front, back, and cross meshes.
• The Polygon::inside() function has been added.
• The Quadrilateral::area() function has been added.
• Perlin noise generators now support configurable tiling period.
• PrefixScan now supports strided data via PrefixScan::FlagStride.
• TellusimPolynomial adds solvers for linear through septic equations.
• TellusimSpline adds spline intersection utilities.
• State color has been added to rect and text Controls.
• Custom shadow intersection functions now support color shadows.
• Cube texture mipmap generation methods have been added to CubeFilter.
• MaterialShading now supports two-sided stencil buffering.
• Screen, Occlusion, Occluder, and Feedback rendering events have been added to SceneRenderer.
• A global reflection scale parameter has been added.
• Scene scripts now have a getCompilerSource() method that returns the final source code.
• SceneUpdate interface added for custom update logic.
• Added SceneReader and SceneWriter interfaces for scene serialization.
• Scene type serialization migrated to SceneReader/SceneWriter system.
• GraphBase, NodeBase, and MaterialBase now support user-data serialization in scene files (requires explicit constructor).
• SceneManager::releaseBuffer() method has been added to remove queued data fetches.
• Row and column spacing have been added to ControlGrid.
• Random::Stratified namespace adds Halton, Hammersley, and Vogel sequences.
• Added ArrayStack<> container for allocation-free arrays.
• TS_NO_LOG macro now controls enabling of all TS_LOG macros.
• Added compile-time hash functions to String.
• Added 3D and Cube – 2D Array image conversion in Image. Image::FlagArray controls such conversions.
• Matrix3x2 now supports 2×2 submatrix access.
• Expression::Scope adds support for custom variables and functions in all expressions.

Shader API changes:

• New set_node_object_payload_index() and set_node_object_num_instances() methods have been added to SceneNodes.shader to control instancing.

Bug fixes:

• File references to NodeScript and GraphScript can override script parameters.
• Fixed Explorer crash during undo operation for Material hierarchy removal.
• Fixed incorrect bounding box calculation in SpatialTree BVH for small element counts.
• RenderDraw now correctly visualizes NodeObject bounding boxes with instancing.
• Nodes can now create and remove other nodes inside update().
• Corrected GPU ordering in the Info interface on Linux DRM (sorted by screen count).
• GLSL type references now have higher priority than variables.

Internal Clay features:

• 128 and 256-bit integer types have been added.
• Rational type for integer arithmetic has been added.
• MeshReduce performs better quadrilateral to triangle conversion.
• The MATERIAL_DIRECT_LIGHT mode has been added to the light shader. It calculates diffuse direct light at a given point without materials.
• Clearcoat normal and color parameters are available using the MATERIAL_CLEARCOAT_NORMAL and MATERIAL_CLEARCOAT_COLOR macros.
• The metallic texture is available in the forward pass. It can be used to fetch ambient occlusion value.
• The shader compiler ensures the texture fetch argument types.
• Improved upscaler quality and performance.
• Improved separable filter performance.
• Vulkan Texture and Buffer support now enables dedicated allocation mode for cross-API interop resources.
• Improved subpixel jitter distribution for antialiasing.
• Improved Expression evaluation performance.