Open Comp Graph Maya (or OCG Maya - pronounced Ohh-See-Gee Maya). OCG Maya will allow artists to create simple image processing composting node graphs inside of Autodesk Maya's DG Network, and view the results inside Maya's Viewport 2.0. Optionally, it will be possible to write out image data from Maya
OCG Maya is focused on real-time image caching, playback speed, efficent graph evaluation and support for real-time lens distortion previews.
This project is currently in development and should not be used in production for any reason.
Open Comp Graph Maya is a plug-in using the Open Comp Graph library (currently in development).
OCG Maya consists of the following node types:
| Node Type | Description | Status |
|---|---|---|
| ocgImagePlane | Displays the output of OCG to the Maya Viewport. | In progress |
| ocgImageRead | Reads an image from disk. | In progress |
| ocgImageWrite | Write an image to disk. | Not implemented yet |
| ocgImageMerge | Merge two images together. | In progress |
| ocgImageCrop | Crop an image to a sub-window. | In progress |
| ocgImageReformat | Change the resolution of images. | Not implemented yet |
| ocgImageRetime | Perform time-based frame blending | Not implemented yet |
| ocgImageKeyer | Create a green-screen matte. | Not implemented yet |
| ocgColorGrade | Perform colour grading to an image. | In progress |
| ocgLensDistort | Deform an image using brownian lens distortion. | In progress |
| ocgNull | An empty image operation - null operation. | Not implemented yet |
| ocgSwitch | Switch between multiple node inputs. | Not implemented yet |
Below is a brief description on some of the features planed and being worked on.
| Feature Description | Status |
|---|---|
| Draw live image on a flat plane. | Done |
| Draw live image on a camera image plane. | Done |
| Draw live image on a sphere. | To be started |
| Draw live image on a cylinder. | To be started |
| Draw live image on a cube. | To be started |
| Import lens distortion values from Nuke. | To be started |
| Import lens distortion values from 3DEqualizer. | To be started |
| Export lens distortion values to Nuke. | To be started |
| Export lens distortion values to 3DEqualizer. | To be started |
| Python API to save, and load OCG graph networks as Maya nodes. | To be started |
| Python API to create and manipulate OCG Maya nodes. | To be started |
| Write node graph to disk to bake and speed up read speeds. | To be started |
| Control OCG caching preferences from Maya nodes. | To be started |
| Display which frames are cached in the Maya timeline (with a color). | To be started |
| Render the image plane natively in Software renderers (e.g. Arnold) | To be started |
| Transform node matching image space, with effect of deformer | Done |
To install, follow the instructions in INSTALL.md. To build (compile) the plug-in follow the steps in BUILD.md.
Open Comp Graph Maya (OCG Maya) is licensed under the Lesser GNU Public License v3.0 or LGPL-3.0 for short. This means the project is Free Open Source Software, and will always stay Free Open Source Software: TL;DR.
Please read the LICENSE (text) file for details.
All issues are listed in the issues page on the project page. If you have found a bug, please submit an issue and we will try to address it as soon as possible.