Each camera node defined in the scene and marked as rendered will be translated for Maxwell Render by the plug-in, same way as the other renderers (like Mantra) work. Basic camera and object parameters such as shutter speed, f-stop or position, rotation, uv coordinates are read from the node itself (see the Maxwell Camera (OBJ) chapter). In addition Maxwell has some specific parameters which are not available on Houdini’s default camera and geometry nodes. These can be defined with a multilist control under the Camera Parameters and Object Parameters tab of the General Settings. A camera or an object path has to be added here if the default value of the following Maxwell related parameters has to be changed. This solution ensures that a standard Houdini scene can be rendered with Maxwell Render without any changes in the existing nodes. Column |
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Maxwell Render simulates a real camera with the associated lens set, diaphragm, etc. parameters. Special camera parameters will appear on the interface when a camera or a bundle of cameras is selected in the multilist control.
- Use Shutter Speed: camera shutter is different in Houdini and Maxwell. Houdini stores shutter time in 0 – 1 interval, while Maxwell uses shutter speed. Shutter time is translated with a formula (described in the Maxwell Camera section) which has some limitations. If this flag is turned on, the given value will be used as the camera shutter speed in the Maxwell scene.
- ISO: specifies the film's light- sensitivity. Higher ISO is more sensitive.
- Aperture: controls the shape of the “bokeh” effect caused by bright spots in the parts of the render that are out of focus. (Circular or Polygonal)
- Blades: specifies the number of blades for Polygonal diaphragm.
- Angle: specifies rotation angle of aperture opening for Polygonal diaphragm.
- Shift Offset: specifies the offset of the lens position horizontally and vertically which can be useful to correct geometric perspective distortion.
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