In Houdini, recomputing the look and contents of the scene when the underlying network changes is called cooking the scene.
Cooking is the process of driving information through the networks, from the outputs of operators to the inputs of operators to which they are wired, to create and animate the scene.
Cooking shows the results of changes you make. If you have a very complex scene, cooking can take a noticeable amount of time, disrupting the flow of interactive changes. In that case, you may want to set the cook state to On mouse up or Manual to prevent interactive cooking. (See below.)
Cancels the current update. Use this if you accidentally changed a setting that caused a very long recook and you want to cancel.
Allows you to control simulations. Click this button to switch between simulation on and off. You can also hold on this button and use the Enable Simulation checkbox.
Manually cooks the scene when the recook menu is set to Manual.
The value of this pop-up menu controls when/how often Houdini recooks the scene and updates the display.
|Continuous parameter updates|
Click this button to turn on continuous updates of parameter values in the parameter editor when you change the UI or playback animation.
Normally the values in the parameter editor do not update continuously for performance reasons. However, it can be very useful to see the values change as the animation plays or as you interactively change another parameter.