Remotion Video Generator

# chuk-motion/src/chuk_motion/components/transitions/PixelTransition/tool.py """PixelTransition MCP tool.""" import asyncio import json from chuk_motion.components.component_helpers import parse_nested_component from chuk_motion.generator.composition_builder import ComponentInstance from chuk_motion.models import ComponentResponse, ErrorResponse def register_tool(mcp, project_manager): """Register the PixelTransition tool with the MCP server.""" @mcp.tool async def remotion_add_pixel_transition( first_content: str, second_content: str, grid_size: int = 10, pixel_color: str | None = None, transition_start: float = 2.0, transition_duration: float = 1.0, duration: float | str = 5.0, track: str = "main", gap_before: float | str | None = None, ) -> str: """ Add PixelTransition animated transition effect to the composition. Creates a pixelated dissolve transition between two pieces of content. Pixels animate in with random stagger to cover the first content, then animate out to reveal the second content. Perfect for: Scene transitions, content reveals, before/after showcases Args: first_content: JSON string of first content component (format: {"type": "ComponentName", "config": {...}}) second_content: JSON string of second content component (format: {"type": "ComponentName", "config": {...}}) grid_size: Number of pixels per row/column (default: 10 = 10x10 = 100 pixels) pixel_color: Color of transition pixels (uses primary color if not specified) transition_start: When to start transition in seconds (default: 2.0) transition_duration: Duration of transition animation in seconds (default: 1.0) duration: Total duration in seconds or time string (e.g., "5s", "500ms") track: Track name (default: "main") gap_before: Gap before component in seconds or time string Returns: JSON with component info Example: # Transition between two title cards remotion_add_pixel_transition( first_content='{"type":"TitleScene","config":{"text":"Before","variant":"bold"}}', second_content='{"type":"TitleScene","config":{"text":"After","variant":"glass"}}', grid_size=12, transition_start=2.0, transition_duration=1.0, duration=5.0 ) # Transition between chart and text remotion_add_pixel_transition( first_content='{"type":"BarChart","config":{"data":[...],"title":"Sales Data"}}', second_content='{"type":"TextOverlay","config":{"text":"Record Growth","size":"large"}}', grid_size=15, pixel_color="#00D9FF" ) """ def _add(): if not project_manager.current_timeline: return ErrorResponse(error="No active project.").model_dump_json() try: # Parse nested content first_parsed = json.loads(first_content) second_parsed = json.loads(second_content) first_component = parse_nested_component(first_parsed) second_component = parse_nested_component(second_parsed) if first_component is None or second_component is None: return ErrorResponse( error="Invalid content format. Use format: {'type': 'ComponentName', 'config': {...}}" ).model_dump_json() # Build props props = { "firstContent": first_component, "secondContent": second_component, "gridSize": grid_size, "transitionStart": int(transition_start * 30), # Convert to frames "transitionDuration": int(transition_duration * 30), # Convert to frames } if pixel_color: props["pixelColor"] = pixel_color component = ComponentInstance( component_type="PixelTransition", start_frame=0, duration_frames=0, props=props, layer=0, ) component = project_manager.current_timeline.add_component( component, duration=duration, track=track, gap_before=gap_before ) return ComponentResponse( component="PixelTransition", start_time=project_manager.current_timeline.frames_to_seconds( component.start_frame ), duration=duration, ).model_dump_json() except json.JSONDecodeError as e: return ErrorResponse(error=f"Invalid JSON: {str(e)}").model_dump_json() except Exception as e: return ErrorResponse(error=str(e)).model_dump_json() return await asyncio.get_event_loop().run_in_executor(None, _add)