![]() This lets you check each indirect component individually. To find how much noise is in your indirect diffuse component, add the "Indirect Lighting (per-component)" image plane in the Extra Image Planes tab. Mantra uses the original values for all direct sampling. Remember these numbers apply only to the indirect samples. For example, if you have Min Ray Samples set to 1, May Ray Samples set to 8 and your Noise Level to 0.1, then set Diffuse Quality to 2, Mantra will send between 2 and 16 secondary diffuse ray samples based on a Noise Level of 0.05. This parameter acts as a multiplier on Min Ray Samples and Max Ray Samples and also as a divisor for Noise Level. Turning this up should decrease this type of noise, at the cost of slowing down rendering. Often, indirect sources of light (such as the surfaces of other objects, and light scattered inside of a volume) will be a significant cause of noise in your renders. Chooses the sample with the median z value.Ĭontrols the quality of indirect diffuse sampling (for information on the difference between direct and indirect rays, see sampling and noise). Omedian – First, choose the object which covers most of the pixel, then choose a single sample from that object for the pixel value. Chooses the sample with the maximum z value (farthest). Omax – First, choose the object which covers most of the pixel, then choose a single sample from that object for the pixel value. Chooses the sample with the smallest z value (closest to camera). Omin – First, choose the object which covers most of the pixel, then choose a single sample from that object for the pixel value. Use this filter mode for planes that will be interpreted as integers, such as object or primitive identifiers. This filter is similar to ocover but it will not average any samples. Idcover – First, choose the object which covers most of the pixel, then select a single sample from that object for the pixel value. This filter is similar to edge but it also disables internal edge antialiasing between object boundaries. Ocover – First, choose the object which covers most of the pixel, then take the average value from the sub-pixels of that object only. This filter will have the effect of disabling external edge antialiasing. Median – Choose the value of the sample that has the median z value of all samples.Įdge – Filter using a unit box but only averages samples with object coverage. Max – Choose the value of the sample with the maximum z value (farthest from camera). Min – Choose the value of the sample with the smallest z value (closest to camera). For more information on adding properties to a node see the Edit Parameter Interface.įor complex scenes involving multiple render passes, separate lighting and shadow passes, and so on, you can set up dependency relationships between render drivers by connecting driver nodes together. For more information on properties, see properties. Select a render node, and in the parameter editor click the Gear menu and choose Edit rendering parameters to edit the properties on the node. If you add object properties to the render driver, they define defaults for all objects in the scene. You can add and remove properties from the output driver just like you can for objects. To see the actual network of render driver nodes, click the path at the top of a network editor pane and choose Other networks ▸ out. You can edit an existing render node with Render ▸ Edit render node ▸ node name. You can create a new mantra node by choosing Render ▸ Create render node ▸ Mantra from the main menus. The mantra output driver node uses mantra (Houdini’s built-in renderer) to render your scene.
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