January 11, 2026

SDK 48

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Highlights

• Node-based GraphVarying editor.
• NodeObject instancing for massive object replication.
• MSAA compatibility with D3D12 SM6.7.
• Sparse textures for D3D12 (sparse resource tier 4 is required).
• Indirect top-level tracing builds on Vulkan (only AMD and Intel drivers support it).
• Enhanced dialogs on Linux platforms.
• Editor compatibility with SteamOS.

New samples

• graph_flow_normal scene demonstrates two-pass normal map texture generation.
• graph_flow_texture scene demonstrates procedural texture generation.
• graph_flow_perlin scene demonstrates dynamic procedural textures.
• gl_device, gles_device, and gles_runtime native examples have been added.
• native/vk_qt_widget example has no dependency on the Vulkan library.
• platform/divisor example demonstrates the vertex attribute rate parameter for per-batch input.
• platform/cooperative test is compatible with non-square matrices.
• render/limits has an additional instancing-based rendering mode (slower than BVH-based).
• materials/material_alpha scene demonstrates alpha-tested geometry.
• objects/object_skeleton scene demonstrates hierarchical skeletons.
• scripts/script_material_motion scene demonstrates the motion blur effect.
• scripts/script_material_grid scene generates a high-frequency output verification image.
• native/vk|d3d12|d3d11_device sample outputs all platform-specific device features.
• render/multisample demonstrates engine MSAA rendering.

Tools changes

• Boolean uniform type has been added to the GraphVarying type in Explorer.
• GraphFlow editor has been added to Explorer.
• Explorer and Executor support sparse buffers and textures controlled by the “-sparse 1” command line option.
• Executor now supports controller-based camera movement (can be disabled with the “camera/controller” option).
• Executor supports tracing_all and screen_all command line options for fast rendering mode selection.
• Light texture visualization has been added to Explorer.
• Pool texture visualization has been added to Explorer.
• The quality of the selection area has been improved.

Plugin changes

• GraphFlow plugin for node-based GraphVarying editing has been added.
• Integer vector types have been added to the ControlFlowGLSL editor.
• Circle, triangle, box, pentagon, hexagon, octagon, and star SDF protos have been added to ControlFlowGLSL.
• Wave, ripple, and twist warp protos have been added to ControlFlowGLSL.
• Checker sampler proto has been added to ControlFlowGLSL.
• Color masks and stencil functions have been added to the MaterialFlow layout proto.
• Clutter and BatchTransform plugins have been moved to the plugin/graphs directory.
• A new interface/popup plugin for popup controls and menus has been added.
• DLSS, FSR3, and XeSS plugins have been updated to the latest versions.
• New FSR1 and FSR4 plugins have been added.
• A new FXAA plugin has been added.
• Noise generation has been moved to the interface/flow plugin from the material/flow plugin.
• Tracing shader source generation has been added to the material flow and MaterialX plugins.
• A direction proto to construct a direction vector from two angles has been added to ControlFlow.
• Enhanced tooltip visualization with delayed disappearance.
• Instance and Payload protos have been added to MaterialFlow.
• Transform input has been added to the Vertex input proto of MaterialFlow.
• Group specification has been added to the Uniform proto of MaterialFlow.
• A Line primitive has been added to the Primitives plugin.
• Primitives correctly provide line geometry for ObjectMesh flags with lines.

API changes

• MaterialShading Tracing source has been renamed to Sample source.
• SceneRender interface provides access to temporal render textures.
• The Scene interface now provides the directory where the scene file is located.
• Methods for registering buffers with default offsets and callbacks have been added to SceneBuffer.
• NodeObject methods to control instancing with CPU and GPU counts have been added.
• Payload address and stride parameters have been added to NodeObject.
• Support for motion-buffer per-pixel jitter offsets has been added via the RenderManager|RenderRenderer::FlagJitterBuffer flag.
• LightPoint and LightSpot return the intensity texture index.
• RenderDraw supports multisample texture visualization.
• API-specific Context interfaces receive a device index in the constructor.
• VK|D3D12|D3D11Device classes now provide native device features.
• Access to API layers and extensions in VK|GL|GLESContext and VKDevice has been added.
• The matrix8x16x16f16 matrix type has been added to the Device::Features structure.
• Device::Features structure names have been changed to follow API-name style.
• Device::Features::textureArraySparse field has been added (array textures with a full mipmap chain).
• Device::Features::surfaceMultisample field has been added (compute shader writes to MSAA textures).
• A dedicated ControlRoot::setMousePosition() method has been added.
• ControlText can optionally handle Pressed and Focused callbacks.
• ControlTree accepts right and left buttons for tree expanding/folding.
• Canvas|Controls::raiseChild|lowerChild() methods now accept the target position index.
• Controls::AlignLocal aligns controls using local boundaries only.
• The ObjectMesh::FlagInstancing flag activates optional geometry instancing at the ObjectMesh level.
• SeparableFilter now supports custom filter kernels specified by setKernelSource().
• The number of Function template arguments has been increased to 10.
• System::exec() now returns the process exit code. The check for successful execution is (ret == 0).

Bug fixes

• Correct mesh morphing for meshlet-based geometry.
• Corrected ControlDialog mouse movement compensation with fractional rendering scales.
• Corrected literal recognition of mixed formats.

Internal Clay features

• Linux dialogs have a fallback mode through kdialog and zenity applications.
• Qt6 support has been added to Linux dialogs.
• Support for RWTexture2DMS in HLSL.
• Support for input and output gl_SampleMask on all platforms.
• Constant-based mix operations are now resolved at the compilation stage in the shader compiler.
• Constant-based pow for powers 2, 3, 4, 5, and 8 is replaced by multiplications in the shader compiler.
• Correct handling of tracing masks for tracing shadows and reflections.
• Improved noise sequence generation for reflection and occlusion samples.
• Meshlet and compute rasterization support meshes with morphing.
• Correct tracing generation for meshes with morphing.
• Correct tracing generation for meshes with hierarchical skeleton animations.
• The script system uses try { } blocks for external code execution.
• vbar() and hbar() texture patterns have been added.
• Correct tangent basis generation for mesh line primitives.