Config Debug

[debug]: client

These options show what the renderer is doing.

Option	Default	Description
debugView	OFF	Replaces the plane with a raw view of one buffer. FOAM: foam edge (red) and surface spots (blue). SCENE_DEPTH: the depth snapshot (flat blue means it isn't being read). PLANE_OPACITY: solid (green) vs. softened (red). DISSOLVE_HOLES: the entity discs. WATERLINE_MAP: the raw foam distance field.
debugHud	false	Text readout of the boundary height, camera side, fade range, depth snapshot status, dissolve hole count and foam map size.
logRenderCompatWarnings	true	Logs a one-time warning when a render hook fails, for example under shader packs. This only controls logging, not behaviour.

When reporting a visual bug, turn on debugHud and include a screenshot.