Preview and review

Both preview tools are read-only, return an MCP image and need no lease. They restore scene state afterward.

Single preview

render_preview writes a PNG to a new workspace path and returns it as an MCP image.

Parameter	Meaning
`path`	New workspace `.png` path
`resolution`	Square size 64–2048, default 512
`names`	Optional meshes to isolate; other renderables are hidden
`direction`	Camera direction from the scene center
`color_mode`	`material` or `vertex`
`renderer`	`workbench` or `eevee`
`orthographic`	Use an orthographic camera

Workbench checks shape. Eevee checks materials under temporary studio lighting at up to 1024 pixels and requires material colors.

review_sheet renders up to six views into one contact sheet exactly resolution pixels wide.

Views: front, back, left, right, top and persp.

Modes:

Mode	Purpose
`shaded`	Studio shading
`wireframe`	Temporary wireframe stand-ins
`uv_checker`	UV layout with a generated checker texture
`texel_heatmap`	Blue below, green on and red above a target density
`matcap`	Material capture lighting

target_px_per_m and texture_resolution apply only to texel_heatmap. uv_layer applies to texel_heatmap and uv_checker.

Source meshes are bounded to 500,000 triangles. Copy-based modes are bounded to 200,000 triangles.