Kray review
A focused LightWave renderer with advanced GI tools and a narrow ecosystem.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Kray is a desktop 3D rendering engine and LightWave plugin for producing photorealistic images from 3D models. It is aimed primarily at LightWave users and developers integrating a rendering engine into other modeling applications. Its core focus is global illumination, with photon mapping, path tracing, irradiance caching, reflections, refractions, and caustics. Windows and macOS are supported, while LightWave 3D is the listed integration.
The rendering feature set is broad within that focus. Kray combines a node-based material and shader system with geometry instancing, real-time scene preview, multi-buffer output for compositing, and standalone rendering from LightWave files. Multithreaded, multicore, and multi-CPU rendering support suits workflows that need to use available processor resources. GPU rendering is also listed, although the product remains centered on LightWave rather than a wider application ecosystem. Buyers seeking a dedicated LightWave renderer with path-tracing and global-illumination tools will find a focused feature set; users needing integrations beyond LightWave should look elsewhere.
Kray is paid software, with plans for a Kray2 academic license, a Kray3 upgrade from Kray2, and a standard Kray3 for LightWave option. Pricing starts at 70 EUR, and listed pricing is per unit excluding VAT. There is no free plan, while the fully functional demo places a watermark on rendered images. The product fits buyers who already work in LightWave and need specialized rendering controls, particularly for materials, lighting, instancing, and compositing. It is less suitable for teams choosing software primarily for broad platform coverage, multiple integrations, or a free production option.
Kray pros and cons
- Where it wins
- Photon mapping, path tracing, and irradiance caching
- Node-based materials, instancing, and compositing buffers
- Multithreaded rendering with standalone LightWave file support
- Where it doesn't
- LightWave 3D is the only listed integration
- The free demo adds a watermark to rendered images
- No free plan is included
Kray fact sheet, pricing and score →
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