shadered.org

What It Is

SHADERed is a free, open-source IDE for shader development, positioned as a “lightweight shader writing and debugging tool.” The official website provides downloads for Windows 64/32-bit, Linux, and source code, as well as a Lite version that runs in the browser. The documentation also states that it runs on Windows, Linux, and the Web, while macOS users can compile it themselves.

Core Capabilities

Functionally, SHADERed is more than just a code editor. It includes a built-in shader debugger with support for step-by-step execution, conditional breakpoints, immediate expressions, and watches. Its Profiler can inspect variable values across an entire frame, set global breakpoints, view instruction heatmaps, and measure GPU execution time. Graphics pipeline support is also fairly comprehensive, covering compute shaders, geometry shaders, render textures, 2D/3D textures, cubemaps, buffers, render states, 3D models, instancing, custom variables, and more. In terms of languages, the site explicitly mentions GLSL, GLSL ES, and HLSL, with plugin-based extensions for Godot shaders and Slang.

Pricing and Openness

SHADERed is clearly labeled as completely free, and its source code is available on GitHub, making it a free and open-source tool. The project accepts sponsorship via Patreon and PayPal, but the reviewed content does not mention a commercial edition, enterprise plan, SLA, or paid support. For individual developers, students, and graphics experimentation projects with limited budgets, it offers excellent value.

API, Ecosystem, and Documentation

Extensibility is one of its highlights. The official site mentions a powerful Plugin API that can extend support for Godot shaders, Slang, GIF capturing, a node based editor, and more. The documentation index also includes Command line interface, Plugin API, Embed API, JavaScript functions, Themes, and Tutorials. The documentation appears broad in scope and suitable for experienced graphics developers, though based on the captured content, it is not possible to assess the depth of detail in each section.

Pros, Cons, and Who It’s For

Its strengths include being free and open source, cross-platform support, integrated debugging and profiling capabilities, support for complex 3D pipelines, and availability in both desktop and Web Lite forms. Limitations include the lack of an official direct macOS installer and no visible commercial support information. The web platform also requires registration and cookies, and uses Google Analytics. It is best suited to shader authors, game/engine graphics programmers, teaching, and rapid prototyping scenarios.

Access from China

The reviewed content does not provide information on availability from mainland China, and the Web platform involves Google Analytics, so real-world access stability is unknown. If Web Lite is unstable, users can prioritize the local desktop version or build from source. Alternatives to consider include Shadertoy, RenderDoc, NVIDIA Nsight Graphics, Visual Studio Graphics Debugger, and the built-in shader tools in Unity, Unreal, and Godot.