Animation & Physics · MCP Tool
update_object_physics
Updates physics properties (mass, friction, restitution, etc.) on an object.
Tool Overview & Agent Execution
update_object_physics is an official Exode MCP tool that allows AI coding assistants like Claude Code, Cursor, and Windsurf to updates physics properties (mass, friction, restitution, etc.) on an object.. It directly inspects and modifies local .exode JSON files with precision without manual UI tweaking.
Example Prompt for Claude Code & Cursor
Give this instruction to your AI coding agent to execute this tool on your active .exode workspace:
prompt
"Use update_object_physics to configure the motion properties in my active .exode workspace"Tool Parameters & Input Schema
| Parameter | Type | Required | Description |
|---|---|---|---|
| objectId | string | Yes | The objectId parameter for update_object_physics. |
| path | string | Yes | The path parameter for update_object_physics. |
| physics | object | Yes | The physics parameter for update_object_physics. |
More Animation & Physics Tools
add_animation
RECOMMENDED PRIMARY MOTION PRIMITIVE: Adds an animation object with multi-track keyframes. Preferred over heavy effects for 60fps performance and zero filter memory bloat.
add_code_animation
Adds procedural motion to a normal object: `function animate(t, o, params, ctx)` runs every frame; set o.x/o.y/o.rotation/o.skewX/o.skewY (added), o.scale/o.scaleX/o.scaleY/o.opacity (multiplied), o.text, o.color. Offsets apply to the object's static transform and override its keyframed transform, so to combine with keyframes put the keyframes on a parent Frame (not a Group, which re-centres on its moving child). Use for orbits, wobble, noise drift, counters and seamless loops while the object stays editable.
add_custom_effect
Attaches drawing code to an object: `function render(ctx, env)` runs every frame and paints into the object's box (origin at its centre; env has width, height, time, params, inputs, pointer). Use for generative motion: particles, flow fields, metaballs, procedural type, 3D projection, textures. Put full-bleed pieces on an artboard-sized Rectangle. Code is syntax-checked and linted for minifier and determinism problems. See get_motion_skill { topic: 'effect-code' }.
add_effect
Adds a visual effect to an object (blur, backdropBlur, glow, dropShadow, innerShadow, etc.). ⚠️ PERFORMANCE & MEMORY NOTICE: Visual effects cause heavy GPU/canvas rasterization filter passes and high memory consumption during animation. NEVER use effects as a substitute for motion, states, or interactions. Always build dynamic behaviors using (1) Animations (animate_properties, create_timeline), (2) State Variables (add_input, bind_variable), and (3) Project / Interaction Rules (add_object_interaction, setup_project_rules). Use add_effect sparingly for subtle static aesthetic styling only.
Build & Review Motion Visually
Let Claude or Cursor run update_object_physics, then fine-tune timing, spring physics, and export ready-to-ship code in ExodeUI.