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changes.mady.by.user Unknown User (zheni.metodieva)

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changes.mady.by.user Kristin Ivanova

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This set of images demonstrate the effect of the 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.

 

Section
Column
width5%20%

 

column30%column30%
Column
30%
width60%
Image slider
startIndex1
Panel
borderStylenone

Image Modified

Orientation: 0.0

 
Panel
borderStyle
width
none

Image Modified

 Orientation: 0.3

 
Panel
borderStyle
width
none

Image Modified

 Orientation: 0.5

 

 
Column
width5%
20%

 

 

Anchor
flakeDensity
flakeDensity

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This set of images shows the effect of the Density parameter. Note how larger values produce more flakes, but do not change the flake size. 

Section
Column
width5%20%

 

column30%columnwidth
Column
30%
width60%
Image slider
startIndex1
Panel
borderStylenone

Image Modified

Density: 0.5

 
Panel
borderStyle
width
none

Image Modified

Density: 1.0

 
Panel
borderStyle
none
30%

Image Modified

 Density: 2.0

 

 
Column
width5%
20%

 

 

Anchor
flakeScale
flakeScale

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Example: The Flake Scale Parameter


This set of images demonstrate demonstrates the effect of the Scale parameter. Note how lower values scale the entire flake structure.

 

Section
Column
width5%20%

 

column30%column30%
Column
30%
width60%
Image slider
startIndex1
Panel
borderStylenone

Image Modified

 Scale: 0.01

 
Panel
borderStyle
width
none

Image Modified

Scale: 0.04

 
Panel
borderStyle
width
none

Image Modified

Scale: 0.08

 

Column
width5%20%

 

 

 


Anchor
flakeSize
flakeSize

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Example: The Flake Size Parameter

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This set of images shows the effect of the Size parameter. Note how larger values make the individual flakes larger, but do not change their count.

 

Section
Column
width5%20%

 

columnwidthcolumnwidth
Column
30%
width60%
Image slider
startIndex1
Panel
borderStylenone

Image Modified

Size: 0.5

 
Panel
borderStyle
none
30%

Image Modified

Size: 1.0

 
Panel
borderStyle
none
30%

Image Modified

Size: 2.0

 

Column
width5%20%

 

 

 


Anchor
flakeFiltering
flakeFiltering

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This example shows the effect of the Filtering Mode parameter. 

Section
Column
width10%20%
 
columnwidthcolumn
Column
40%
width60%
Image slider
Panel
borderStylenone

Image Modified

 Filtering Mode: Simple


no anti-aliasing

 
Panel
borderStyle
none
40%

Image Modified

Filtering Mode: Directional


no anti-aliasing

 
Panel
Column
width10%
 
Column
width40%
borderStyle
width10%
 
Section
columnwidth
none

Image Modified

The flake orientation gets averaged, altering the appearance. The material transitions more abruptly from dark to light with the flakes appearing brighter and nosier.

 
Panel
borderStyle
none
40%

Image Modified

The material appearance is correctly preserved due to the higher filtering accuracy.

 

Column
width10%
 

...

20%
 


Anchor
flakeMapSize
flakeMapSize

...

Note that rendering with a particular filter is is not the same as rendering without a filter and then blurring the image in a post-processing program like Adobe Photoshop. Filters are applied on a sub-pixel level, over the individual sub-pixel samples. Therefore, applying the filter at render time produces a much more accurate and subtle result than applying it as a post effect.

section
Section
Column
width20%

 

Section
columnwidth25%columnwidth25%columnwidth25%
Column
25%
width60%
Image slider
Panel
borderStylenone

Image Modified

 Filtering Mode: Simple 
 Map Size: 256
Flake maps take less than 1 MB

Panel
borderStyle
none

Image Modified

 Filtering Mode: Simple 
 Map Size: 512
Flake maps take between 1 and 2 MB

Panel
borderStyle
none

Image Modified

 Filtering Mode: Simple 
Map Size:1024
Flake maps take 5 MB

Panel
borderStyle
none

Image Modified

Filtering Mode: Simple
Map Size: 2048
Flake maps take 21 MB

columnwidthcolumnwidth25%columnwidth25%columnwidth25%
Panel
borderStyle
none
25%

Image Modified

Filtering Mode: Directional
Map Size:256
Flake maps take 10 MB

Panel
borderStyle
none

Image Modified

Filtering Mode: Directional
Map Size:512
Flake maps take 40 MB

Panel
borderStyle
none

Image Modified

Filtering Mode: Directional
Map Size:1024
Flake maps take 161 MB

Panel
borderStyle
none

Image Modified

 Filtering Mode: Directional
 Map Size: 2048
Flake maps take 645 MB

Column

...

width

...

20%

 

Notes

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Fancy Bullets
typecircle
  • The BRDFCarPaint material needs to precalculate several textures related to the flakes. Depending on the Flake map size parameter, this may take a few seconds. When using the swatch preview, this may lead to slight delays between changing a parameter and the update of the material swatch.