| name | houdini-karma |
| description | Pipeline skill — configure Karma CPU/XPU render settings, material overrides, light mixer, and image output through typed tools. Pair with houdini-render for full render execution and houdini-camera-light for scene setup. |
| license | MIT |
| compatibility | dcc-mcp-houdini 0.1+, Houdini 20.5+, dcc-mcp-core 0.19.45+ |
| allowed-tools | Bash Read Write Edit |
| metadata | {"dcc-mcp":{"dcc":"houdini","layer":"domain","stage":"pipeline","version":"1.0.0","tags":["houdini","karma","renderer","xpu","cpu","material","light_mixer","lookdev","pipeline"],"search-hint":"karma cpu xpu render samples denoise material override light mixer output exr","tools":"tools.yaml"}} |
houdini-karma
Typed Karma renderer configuration tools. All tools are affinity: main.
Parameter writes are defensive (multi-candidate parm names) to tolerate
Karma LOP, Karma ROP, and USD render product variants.
Tool groups
karma: configure_karma — engine (CPU/XPU), samples, noise threshold, denoise.material: set_material_override — global material override with presets
(clay, gray, white, chrome, checker, normals, uv) or custom paths.light_mixer: configure_light_mixer — enable light mixer and adjust
per-light intensity, exposure, and color.output: set_image_output — output path, format (exr/png/jpg/tif with
bit depth), resolution, color space, layer name.
Tracer-bullet flow
configure_karma(node_path="/stage/karmarenderproduct1", device="xpu", pixel_samples=256, noise_threshold=0.01, denoise=true)set_material_override(node_path="/stage/karmarenderproduct1", preset="clay")configure_light_mixer(node_path="/stage/karmarenderproduct1", enable=true, lights=[{"name":"key_light","intensity":1.5},{"name":"rim_light","exposure":0.5}])set_image_output(node_path="/stage/karmarenderproduct1", output_path="/tmp/render/beauty.$F4.exr", format="exr", resolution=[1920,1080], color_space="ACES - ACEScg")- hand off to
houdini-render (render_rop) for execution
