I created this renderer for my use. I dont know any coding. 99% of the code is from Agentic coding. It does the job for me. And features i put in based on projects i made. If projects need spherical panoram i add spherical panorama. Its free and always be free. I hope you like it. Good Luck!
project-render is a real-time rendering engine for high-fidelity Architectural Visualization (ArchViz). It uses DirectX 12, DXR ray tracing, NVIDIA Streamline, and optional final-frame denoisers for physically based lighting and export workflows.
- LET THERE BE LİGHT: A dedicated lighting release centered on scalable local-light sampling, IES profiles, instanced fixtures, and faster light authoring.
- ReGIR local-light sampling: Added a GPU ReGIR path for point, spot, area, IES, and emissive-proxy lights, with runtime fallback handling and a
regir debugpanel for live renderer state. - Real IES workflow: IES profiles are parsed, saved with scenes, bound on the GPU, and exposed through the Lights panel as authored light-profile data instead of a placeholder light type.
- Grouped and instanced lights: Lights now support prototype/instance style editing, multi-selection, Shift-drag duplication, grouped fixture workflows, and LiveLink instance updates.
- Viewport light authoring: Added click-to-create and click-to-move light placement using viewport surface picks, plus better light gizmos, box selection, and multi-type selection behavior.
- Emissive mesh participation: ReGIR can sample emissive mesh proxies through real triangle-backed emissive data instead of rough sphere/point approximations.
- DLSS-RR stability work: Disabled unsupported DLSS-RR dynamic input resolution and tightened dense motion/AOV inputs to reduce shimmer, checker flashes, and stale reconstruction guidance.
- Unified DXR Path Tracer: Progressive path tracing with high-precision accumulation (
R32G32B32A32_FLOAT). - Wavefront Architecture: Wavefront-first DXR runtime with separated traversal, resolve, visibility, ReSTIR, and accumulation stages.
- Multiple Importance Sampling (MIS): Power-heuristic MIS combining BRDF and light sampling to reduce fireflies on glossy surfaces.
- ReSTIR DI & GI: Reservoir-based spatio-temporal importance resampling, now fully integrated with the wavefront path.
- Efficiency Optimizations: Russian roulette, compact material data, opaque hardware fast paths, Opacity Micromaps, and secondary GI/shadow thinning.
- NVIDIA DLSS Ray Reconstruction (DLSS-RR) for supported real-time reconstruction through NVIDIA Streamline.
- Intel Open Image Denoise (OIDN) 2.x for final-frame/export denoising workflows.
- NVIDIA OptiX Denoiser 9.x as an optional NVIDIA/CUDA final-frame denoiser.
- Universal Model Import: Robust support for glTF 2.0, FBX, OBJ, STL, and fast drag-and-drop file import.
- OpenPBR-Oriented Material Runtime: Material classes, clearcoat, transmission, tri-planar mapping, stochastic tiling, parallax mapping, and window-box interiors.
- Foliage & Environment: Scatter tooling, grass emitting, foliage performance improvements, and real-time volumetric clouds.
- ArchViz Material Editor: Qt and ImGui material editors with class presets, selected-material focus, texture preview/weights, mapping controls, and a Kelvin-capable color picker.
- Physical Camera & Lighting: IES light profiles, Prague Sky Model with intensity controls, white balance, physical exposure, and Clay Render mode for rapid lighting tweaks.
- Qt UI Integration: Event-driven, hardware-accelerated Qt6 UI with highly optimized material/environment editing panels.
- Advanced Selection Tools: Transform undo/redo, delete/cleanup tools, fast node locking, selection bounding box outlines, and Shift-drag quick copy/instancing support.
- Saved Views & Camera Sequencing: Keyframed animation paths with per-segment easing and MP4 export.
- Safer Scene I/O: Save/load runs asynchronously with progress feedback and normal close/exit paths are blocked while scene I/O is active.
- 3ds Max 2024/2025 LiveLink: Named-pipe live sync for nodes,
.prmeshpayloads, shared materials, and geometry streaming. - Archicad 28 LiveLink: Pipe-based scene sync with stable material identity across re-syncs.
- Windows 10/11
- NVIDIA RTX GPU recommended for DXR, DLSS-RR, and OptiX
- Visual Studio 2022
- CMake 3.20+
- Qt 6, optional but recommended for the full editor UI (
Widgetscomponent required) - vcpkg for Assimp, fmt, and other third-party dependencies
Due to licensing agreements, these SDKs are not included in the public repository. Acquire them directly from the vendors and place them under thirdparty/ when needed:
thirdparty/archicad-sdk: Archicad API Development Kit, required for the Archicad 28 LiveLink plugin.thirdparty/sketchup_sdk: SketchUp C API SDK, required for SketchUp import integration.thirdparty/max2024-sdk/thirdparty/max2025-sdk: 3ds Max SDKs, required for 3ds Max plugins.thirdparty/vray-sdk: V-Ray AppSDK or headers, required only for specific V-Ray material conversion paths.
Smaller dependencies such as OIDN and Streamline are included directly in the repo or fetched during build.
Project Render's own source code is intended to be released under the MIT License: free of charge, permissive, and suitable for personal, commercial, and open-source use.
Third-party libraries, SDKs, runtimes, plugins, headers, and binary redistributables remain under their own licenses and vendor terms. In particular, Qt, OIDN, Assimp, Streamline/DLSS/NGX, OptiX, SketchUp SDK, Autodesk 3ds Max SDK, Graphisoft Archicad API DevKit, and Chaos V-Ray SDK are not relicensed by Project Render.
See THIRD_PARTY_NOTICES.md for dependency notices and redistribution notes.
Configure with Qt enabled:
cmake -S . -B build -G "Visual Studio 17 2022" -A x64 `
-DCMAKE_TOOLCHAIN_FILE="C:/path/to/vcpkg/scripts/buildsystems/vcpkg.cmake" `
-DUSE_QT_UI=ONBuild the Release target:
cmake --build build --config Release --target project-renderUSE_QT_UI=ON: Enables the Qt editor UI.USE_OPENIMAGEDENOISE=ON: Enables OIDN support usingthirdparty/oidn.USE_OPTIX_DENOISER=ON: Enables NVIDIA OptiX final-frame denoising.OPTIX_ROOT=...: Path to the NVIDIA OptiX SDK root whenUSE_OPTIX_DENOISER=ON.
OptiX is optional and is disabled by default. Use NVIDIA OptiX SDK 9.0 or newer; OptiX SDK 9.1.0 has been tested with CUDA Toolkit 12.2.
Example:
cmake -S . -B build -G "Visual Studio 17 2022" -A x64 `
-DUSE_QT_UI=ON `
-DUSE_OPENIMAGEDENOISE=ON `
-DUSE_OPTIX_DENOISER=ON `
-DOPTIX_ROOT="C:/ProgramData/NVIDIA Corporation/OptiX SDK 9.1.0"
cmake --build build --config Release --target project-renderIf you see this runtime log:
OptixDenoiser: USE_OPTIX_DENOISER is OFF; OptiX denoise skipped.
the executable was built from a CMake cache where USE_OPTIX_DENOISER was disabled. Reconfigure that build directory with -DUSE_OPTIX_DENOISER=ON, then rebuild.
The LiveLink plugins are built from their respective sub-projects in tools/.
Ensure thirdparty/archicad-sdk is present, then build:
cmake -S tools/archicad28 -B build-archicad28-v142 -A x64
cmake --build build-archicad28-v142 --config ReleaseEnsure the matching Max SDKs are available under thirdparty/, then build:
cmake -S tools/3dsmax2024 -B build-max2024 -A x64
cmake --build build-max2024 --config Release
cmake -S tools/3dsmax2025 -B build-max2025 -A x64
cmake --build build-max2025 --config ReleaseCheck tools/3dsmax2025/README.md or tools/archicad28/README.md for plugin installation details.
- Engine startup:
./build/Release/bin/project-render.exe --max-livelink-pipe - Live sync supports incremental updates for nodes, visibility, meshes, materials, and selection.
- DLSS requires an NVIDIA AppID through the
SL_APPLICATION_IDenvironment variable orsl_appid.txtin the repo root. - DLSS-RR is a temporal real-time reconstruction path and is separate from final-frame OIDN/OptiX denoising.
- Off: Presents the converged path-traced accumulation directly.
- OIDN CPU/GPU: Cross-vendor final-frame denoising path, depending on the available OIDN backend.
- OptiX: NVIDIA/CUDA final-frame denoiser. Requires
USE_OPTIX_DENOISER=ON, a CUDA-capable NVIDIA GPU matching the D3D12 adapter, and a compatible OptiX SDK.
- Grey viewport: Ensure a sky model is selected or an HDRI is loaded in the Environment panel.
- Non-English file paths: 0.5.0 keeps the UTF-8 path handling improvements for glTF/GLB and scene I/O. If an importer still fails, try moving the asset to a short ASCII-only path and report the original path.
- OptiX stub log: Reconfigure and rebuild the exact executable you launch with
-DUSE_OPTIX_DENOISER=ON. - OptiX runtime failure: Verify CUDA Toolkit installation, NVIDIA driver support, and that the D3D12 adapter matches the CUDA device.
- Deleting objects with DXR enabled: The renderer forces an acceleration-structure rebuild. If you see crashes, verify build geometry flags.
This project is a high-performance rendering scaffold evolved into a feature-rich ArchViz tool in collaboration with an AI coding assistant.