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Overview ¶
There are several Pyro Configure examples available through the tab menu. These are similar to shelf tools that put down networks of nodes for learning purposes. The Pyro Configure Fire example illustrates a fast moving fire. It shows a minimal fire setup that can be used as a template for building fire in your scene.
Important nodes ¶
SOURCE
Wire a Mono layer into this node to adjust where the smoke emits from. This node controls the thickness of the fire emission. A value of 0
will have no fire and 1
will have the full thickness.
pyro_configure1
Adjusts the resolution of the fire. This is the number of voxels across the default imaging window. Higher resolutions will take considerably more time and memory.
layertovdbleafpoints2
, pyro_sourcefromlayer2
, pyro_sourcefromlayer3
The VDB has to be activated so you can source into it. Layer to VDB Leaf Points handles the activation from the
SOURCE
layer, while the Pyro Source from Layer handles the actual sourcing. The thickness and inputs for these two nodes should match.
pyro_block_begin2
The start of the simulation loop. All nodes inside the convex hull (highlighted area) will run every simulation step. The simulation is clipped from -1
to 1
by default, and can be controlled by modifying the Clip X/Y/Z parameters.
pyro_dissipate2
Controls how fast the temperature decays. Temperature is used for the glow of the fire, so a slower decay will result in longer flames.
pyro_lightambient2
Computes lighting for the fire’s smoke using an ambient light source. Increasing smoke density (with the Density Scale parameter) increases the contrast of self-shadows.
rasterizevolume2
Renders the fire into a layer. The camera_ref
can use an imported camera from the Camera Import COP to change the view or resolution of the render. The Emission parameters can be used to make the fire brighter or control the envelope of the glow.
Learning from this example ¶
To... | Do this |
---|---|
Create different fire sources |
Change the input to |
Slow down how fast the fire moves |
Reduce the Scale on the |
Create smoother flames |
Reduce the Amplitude on the |