Other Parameters
The parameters in this section configure some details
in the behaviour of glossy materials and optimisations
for use with mirror reflections.
This is the degree to which the highlights are
sampled for rough specular materials. A value of
one means that all highlights will be fully sampled
using distributed ray tracing. A value of
zero means that no jittering will take place,
and all reflections will appear sharp even when
they should be diffuse. This may be desirable
when used in combination with image sampling (see
Pixel Sample Spacing [-ps])
to obtain faster renderings.
This is the minimum fraction of reflection or
transmission, under which no specular sampling
is performed. A value of zero means that
highlights will always be sampled by tracing
reflected or transmitted rays. A value of one
means that specular sampling is never used.
Highlights from light sources will always be
correct, but reflections from other surfaces
will be approximated using an ambient value.
A sampling threshold between zero and one offers a
compromise between image accuracy and rendering
time.
Limit reflections to a maximum of this value.
Limit the weight of each ray to a minimum of
this value. During ray-tracing, a record is kept of
the final contribution a ray would have to the
image. If it is less then the specified minimum,
the ray is not traced.
Navigation:
Back to Simulation Settings
Back to Extended Simulation Settings
Back to Preprocess Parameter Settings
Back to Previewing a Simulation on Unix
Back to Previewing a Simulation on Windows
| 