Справочник Пользователя для pyrocluster cinema 4d 9
PYROCLUSTER
REFERENCE 9
We have included many sample files and animations, and these can be found
in the Features/PyroCluster folder within the CINEMA 4D folder. You might
like to merge these into your own scenes and modify them to your needs. By
experimenting with these sample effects you can begin to understand how
to build your own effects from scratch.
like to merge these into your own scenes and modify them to your needs. By
experimenting with these sample effects you can begin to understand how
to build your own effects from scratch.
The settings for the Volume Tracer, which is the part of PyroCluster that controls how
the effect will be rendered, can also be edited in the Attribute manager or Material
Editor (see ‘Settings for the Volume Tracer’ later in this chapter).
Editor (see ‘Settings for the Volume Tracer’ later in this chapter).
With the settings for the PyroCluster shader and the Volume Tracer completed, you
render a PyroCluster effect in the normal way, i.e. by selecting one of the regular
CINEMA 4D render options. A PyroCluster effect can be rendered either as a full
atmospheric effect or as a post effect according to the PyroCluster shader’s Render
Mode selected on the Globals page in the Attribute manager or Material Editor.
render a PyroCluster effect in the normal way, i.e. by selecting one of the regular
CINEMA 4D render options. A PyroCluster effect can be rendered either as a full
atmospheric effect or as a post effect according to the PyroCluster shader’s Render
Mode selected on the Globals page in the Attribute manager or Material Editor.
How are PyroCluster effects created?
Smoky effects require many
complex fractal calculations
to produce the ‘particles’ that
make up the volume.
In the image above a single ray is illustrated cutting into a puff’s volume, taking
samples in order to produce realistic 3D volumetric effects. PyroCluster uses many of
these rays to create the full 3D volume effect. As the rays travel deep into the puff’s
volume, a fractal calculation is made at every relevant point to produce the correct
volume density. This is a number-intensive calculation and you can expect it to take
some time; volumetric effects simply cannot be calculated quickly — you might already
know this if you’ve used volumetric lights. A faster processor will always speed up
the rendering of PyroCluster’s effects.
samples in order to produce realistic 3D volumetric effects. PyroCluster uses many of
these rays to create the full 3D volume effect. As the rays travel deep into the puff’s
volume, a fractal calculation is made at every relevant point to produce the correct
volume density. This is a number-intensive calculation and you can expect it to take
some time; volumetric effects simply cannot be calculated quickly — you might already
know this if you’ve used volumetric lights. A faster processor will always speed up
the rendering of PyroCluster’s effects.
Having said that, PyroCluster is built to be efficient and provides many powerful
features to help reduce render time. There are many ways to fine-tune your scenes;
one particularly useful one is found in the Volume Tracer settings. Changing just one
setting here, World Step Size, can save hours or even days of rendering time.
features to help reduce render time. There are many ways to fine-tune your scenes;
one particularly useful one is found in the Volume Tracer settings. Changing just one
setting here, World Step Size, can save hours or even days of rendering time.
To obtain faster render times try
increasing this value.
For as long as there is no unacceptable degradation in image quality, keep increasing
the World Step Size value.
the World Step Size value.