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VRay for 3ds Max Tutorials
Universal V-Ray 1.5 Settings
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The "universal" settings comprise a set of settings that we have found to
work very well for still images in many situations. Please note that these
settings are not optimal, in the sense that with enough tweaking, you can
probably get similar quality with faster render times. The beauty of these
settings though, is that they require almost no tweaking and you are
guaranteed to get a good result in the end.
The advantages of these settings are:
- very little parameters for controlling render quality vs speed
(essentially, only the Noise threshold);
- they work for a very large number of scenes;
- they typically produce high-quality results.
Of course, there is a disadvantage: the scene may render quite slow.
With tweaking, you may get faster results.
These settings work, because the high AA subdivs essentially cause all
the sampling to be performed by the image sampler. It will take as many
samples per pixel as required to achieve the specified noise threshold. In
many ways, this is similar to PPT (progressive path tracing), but is done on
a per-bucket basis and the number of samples is adaptive for each pixel.
1. Set V-Ray as the current rendering engine (with the default V-Ray
settings).
2. In the
Image sampler rollout, switch the image sampler
Type to Adaptive DMC. Set the Max.
subdivs to 100 (one hundred). Leave the Min.
subdivs to 1.
4. In the
Indirect illumination rollout, Turn GI
on, set the Primary GI
engine to Brute force. Do not change the
Subdivs. Set the
Secondary GI engine to Light cache.
5. In the
Light cache rollout, set the light cache
Interpolation samples to 5.
6. In the
Color mapping rollout, make sure that the Clamp
output and Sub-pixel mapping options
are off.
7. In the
DMC
sampler rollout, set the Adaptive amount
parameter to 1.0. Typically you will also need to
adjust the Noise threshold as the default may
produce too much noise. A good value is, for example,
0.005.
8. You can also control the noise directly from the Image
sampler rollout, if you uncheck the Use DMC
sample thresh. parameter, and adjust the Clr.
thresh instead (e.g. to 0.005).
- Leave all subdivs anywhere at their default values. They won't have any
effect anyways - the 100 AA subdivs will almost certainly override
everything else.
- Avoid using sharpening AA filters. They can make the noise more
apparent.
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