shader_debugger 1.0.0

Debug-only runtime for the Flutter shader debugger. It records fragment shader uniforms and draws probe shaders for the Shader Debugger DevTools extension.

1.0.0

First release. Verified end to end on macOS with Impeller; other platforms are untested so far.

• DebugShader: wraps a fragment shader, records its uniforms by name, and draws the probe while a heatmap is shown. Inert in profile and release.
• ShaderDebugger: the ext.shader_debugger.* service extensions for the DevTools extension:
  • heatmaps of any value at any statement;
  • exact pixel reads (32-bit floats on Impeller), with pixel select mode, an overlay in the app modeled on the widget inspector's select mode;
  • uniform overrides, applied to the shader and the probe until cleared.
• The Shader Debugger DevTools extension, built into extension/devtools/.