A fast, lightweight texture viewer and converter for game assets — with optional AI upscaling.
- Open & save textures: BLP, BMP, DDS, JPEG, PNG, PSD, TGA, TIFF, and Diablo II: Resurrected
.texture— plus read-only support for Blizzard TEX (Diablo III/IV). - Image viewer with zoom, pan, per-channel RGBA filtering, mip level selection, and auto-detection of normal maps and ORM textures.
- Texture details — dimensions, pixel format, mip chain info, and automatic texture kind classification (Diffuse, Normal, ORM, etc.) with manual override.
- Mipmap generation — one-click regeneration that respects texture kind (normal maps get renormalized, PBR textures keep correct properties).
- Batch conversion — convert entire directories at once, multi-threaded, with per-format filters and per-kind DDS targeting.
- Pipelines — a visual node-graph editor for building reusable image-processing pipelines (channel ops, math, filters, geometry, control flow, subpipelines) that run on individual textures or as a batch step.
- CASC browser — open Blizzard game archives directly and browse/extract textures, including full Diablo IV TEX support.
- Save options — format-specific settings (BLP encoding & dithering, DDS format, JPEG quality), mipmap generation on save, and preferences remembered across sessions.
Build reusable image-processing graphs in a visual node editor and run them on your textures — no code required.
- Rich node library — channel ops (extract / merge / invert / luma / prism), arithmetic and math (add, multiply, min/max, power, sine, cosine, natural log…), bitwise integer ops, filters (blur, sharpen, Sobel, derivatives), geometry (mirror, rotate, scale, displace, resize, tiling), mipmap tools, and image properties.
- Control flow — Conditional / Select / Rendezvous nodes and recursive subpipelines, including in-canvas local pipelines (frames).
- Three pipeline kinds — Standard (one image in/out, run straight from the Preview panel), Varying (many images in/out, run from the MultiPipelines dialog), and Function (typed numeric I/O, callable from other pipelines).
- Categories & inline parameters — organize pipelines by category and adjust a pipeline's extra inputs right in the Preview panel before running.
- Debugger — run the current graph with custom inputs and inspect every output, numeric or image, in a results dialog.
- Batch integration — drop a pipeline into the batch converter as a processing step, with overridable parameters.
- AI upscaling node — call Real-ESRGAN models from inside a pipeline (when built with the upscaler).
A library of ready-made pipelines ships in resources/pipelines (grayscale, invert, normal-map conversion, ORM pack/unpack, button generators, and more), with reusable building blocks under functions/.
GPU-accelerated texture upscaling powered by Real-ESRGAN via Vulkan compute. Available models:
- realesrgan-x4plus — general-purpose 4× upscale
- realesrgan-x4plus-anime — anime/stylized 4× upscale
- realesr-animevideov3 — 2×, 3×, or 4× upscale
Upscaling can be applied to individual textures or as part of a batch conversion pipeline. Requires building with WHITEOUT_ENABLE_UPSCALER=ON and a Vulkan SDK.
Requires CMake and a C++23 compiler.
cmake -S . -B build
cmake --build build --config ReleaseFor AI upscaling support (optional):
cmake -S . -B build -DWHITEOUT_ENABLE_UPSCALER=ON
cmake --build build --config ReleaseThis requires the Vulkan SDK. Run scripts/download_models.ps1 to fetch the model files.
BSD 3-Clause — see LICENSE.md. An AI-Derived Works Notice applies to AI-generated code based on this software.
| Library | License |
|---|---|
| Dear ImGui | MIT |
| imgui-node-editor | MIT |
| nlohmann/json | MIT |
| SDL3 | zlib |
| WhiteoutLib | See library license |
| CascLib | MIT |
| Real-ESRGAN ncnn | MIT (optional) |
Full texts in THIRD_PARTY.md.
This project is not affiliated with or endorsed by Blizzard Entertainment.