rendering

rendering

MCP tool definitions for Houdini rendering operations.

Provides tools for viewport capture, render node management, render execution, and render progress monitoring.

Functions:

Name	Description
create_render_node	Create a new render (ROP) node in /out.
get_render_progress	Get render progress and status of a ROP node.
get_render_settings	Get render settings from a ROP node.
list_render_nodes	List all render (ROP/Driver) nodes in the scene.
render_node_network	Capture a screenshot of a node's network editor view.
render_quad_view	Capture all four viewport panes to separate images.
render_viewport	Capture the current 3D viewport to an image file.
set_render_settings	Set render parameters on a ROP node.
start_render	Render a ROP node.

Functions

create_render_node async

create_render_node(
    ctx: Context,
    renderer: str,
    name: str | None = None,
    camera: str | None = None,
    output_path: str | None = None,
) -> dict

Create a new render (ROP) node in /out.

Parameters:

Name	Type	Description	Default
renderer	str	Renderer type ('karma', 'opengl', 'mantra', 'rop_geometry', 'rop_alembic', 'usdrender', 'fetch', 'merge').	required
name	str | None	Node name.	None
camera	str | None	Camera node path.	None
output_path	str | None	Output file path.	None

get_render_progress async

get_render_progress(ctx: Context, node_path: str) -> dict

Get render progress and status of a ROP node.

Parameters:

Name	Type	Description	Default
node_path	str	ROP node path.	required

get_render_settings async

get_render_settings(ctx: Context, node_path: str) -> dict

Get render settings from a ROP node.

Parameters:

Name	Type	Description	Default
node_path	str	ROP node path.	required

list_render_nodes async

list_render_nodes(ctx: Context) -> dict

List all render (ROP/Driver) nodes in the scene.

render_node_network async

render_node_network(ctx: Context, node_path: str, output_path: str) -> dict

Capture a screenshot of a node's network editor view.

Parameters:

Name	Type	Description	Default
node_path	str	Node path to focus on.	required
output_path	str	Image file path.	required

render_quad_view async

render_quad_view(
    ctx: Context, output_path: str, resolution: list[int] | None = None
) -> dict

Capture all four viewport panes to separate images.

Parameters:

Name	Type	Description	Default
output_path	str	Base image path; viewport names are appended.	required
resolution	list[int] | None	[width, height] in pixels.	None

render_viewport async

render_viewport(
    ctx: Context,
    output_path: str,
    resolution: list[int] | None = None,
    camera: str | None = None,
) -> list[TextContent | ImageContent]

Capture the current 3D viewport to an image file.

Parameters:

Name	Type	Description	Default
output_path	str	Image file path.	required
resolution	list[int] | None	[width, height] in pixels.	None
camera	str | None	Camera node path.	None

set_render_settings async

set_render_settings(
    ctx: Context, node_path: str, settings: dict[str, Any] = {}
) -> dict

Set render parameters on a ROP node.

Parameters:

Name	Type	Description	Default
node_path	str	ROP node path.	required
settings	dict[str, Any]	Parameter name-value pairs.	{}

start_render async

start_render(
    ctx: Context, node_path: str, frame_range: list[float] | None = None
) -> dict

Render a ROP node.

Parameters:

Name	Type	Description	Default
node_path	str	ROP node path.	required
frame_range	list[float] | None	[start, end] or [start, end, increment].	None