Example 1: The flake density, scale and size parameters
Example 2: The flake filtering parameter
Example 3: The flake map size parameter
The first set of images shows the effect of the Flake density parameter. Note how larger values produce more flakes, but do not change the flake size.
Flake density is 0.5 Flake density is 1.0 Flake density is 2.0
The second set of images show the effect of the Flake size parameter. Note how larger values make the individual flakes larger, but do not change their count.
Flake size is 0.5 Flake size is 1.0 Flake size is 2.0
The third set of images demonstrate the effect of the Flake scale parameter. Note how lower values scale the entire flake structure.
Flake scale is 0.005 Flake scale is 0.01 Flake scale is 0.02
The final set of images demonstrate the effect of the Flake orientation parameter. Note how lower values produce flakes more aligned with the surface normal, so that light is reflected more uniformly. Higher values produce more random flakes leading to more variation in the flake illumination.
Flake orientation is 0.0 Flake orientation is 0.1 Flake orientation is 0.3
This example shows the effect of the Flake filtering parameter.
No filtering and no antialiasing; the result is very noisy because of the small flake size. No filtering, Adaptive DMC antialiasing. The result is accurate, but very slow since a lot of AA samples are required to antialias the flakes. Flake filtering set to Simple, no antialiasing. The filtering greatly reduces the noise, but alters the appearance of the material. Flake filtering set to Directional, no antialiasing. The noise is reduced and the material appearance is correctly preserved.
This example demonstrates the effect of the Flake map size parameter on the image and RAM usage. Note how lower map sizes take less RAM, but produce tiling artifacts. Larger map sizes reduce the tiling, but take more memory. In addition, the Directional filtering uses quite a bit more memory than the Simple mode.
Flake map size is 256 Flake map size is 512 Flake map size is 1024 Flake map size is 2048 Simple filtering Flake maps take less than 1 MB Flake maps take between 1 and 2 MB Flake maps take 5 MB Flake maps take 21 MB Directional filtering Flake maps take 10 MB Flake maps take 40 MB Flake maps take 161 MB Flake maps take 645 MB Flake map size is 256 Flake map size is 512 Flake map size is 1024 Flake map size is 2048