Houdini 22.0 Nodes Copernicus nodes

Rasterize Implicit Surface Copernicus node

Rasterizes an implicit surface onto a layer.

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Since 22.0

This node converts an implicit surface into image layers by raymarching from the camera toward the surface.

Note

Plug a Camera Import node into the camera_ref input to render the surface from a specific camera. You can edit that camera metadata with the Camera Properties COP.

If no camera_ref input is connected, the node uses the COPnet resolution and a default camera at the origin, looking down the negative Z-axis.

Tip

Use the Light COP to add lighting and shading to the surface.

Parameters

Move to Origin

Moves the output layers into canonical space.

Depth Conversion

Converts the mindepth and maxdepth inputs to camera distances using the selected depth type.

Distance

Leaves the inputs unchanged because they are already distances from the camera.

Depth

Treats the inputs as depth values projected along the camera’s forward direction, such as the depth output from Rasterize Geometry.

Height

Treats the inputs as height values. These are offsets from the imaging plane toward the camera position.

Max Steps

Sets the maximum number of raymarching steps for each ray.

Tolerance

Sets the precision used to find the ray-surface intersection.

Number of Samples

Sets the number of samples per pixel. Higher values can significantly reduce jagged edges.

Inputs

camera_ref

An optional camera layer that provides a camera position, a projection from world space to image space (see Spaces), and an imaging plane. This determines the view ray for each output pixel.

Note

If there is no camera_ref layer, the node uses the default orthographic projection (-1 to 1), moving forward along the Z-axis like Rasterize Geometry.

geometry

The implicit surface to rasterize.

vieworigin

Ray origin for each output pixel. Overrides the camera_ref input.

viewdir

Ray direction for each output pixel. Overrides the camera_ref input.

mindepth

Minimum depth boundary for raymarching.

maxdepth

Maximum depth boundary for raymarching.

Outputs

C

The rasterized color.

N

The surface normal.

pos

The surface position in world space.

alpha

The surface alpha.

depth

The surface depth.

See also

Copernicus nodes