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Procedural texturing: Difference between revisions
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→The rock effect
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<rock_strata type="int">0</rock_strata> | <rock_strata type="int">0</rock_strata> | ||
<slope-contrast> (value between 0 and 1) regulates how pronounced the slope lines are drawn and <rock_strata> (value 0 or 1) indicated whether stratified noise should be used or not. | <slope-contrast> (value between 0 and 1) regulates how pronounced the slope lines are drawn and <rock_strata> (value 0 or 1) indicated whether stratified noise should be used or not. Neither slope noise nor stratified noise affect flat rock surfaces, they only lead to modulation on sufficiently steep rock surfaces. | ||
<b>Example 1:</b> | |||
This parameter set | |||
<base-color type="vec3d">0.9 0.95 0.94</base-color> | <base-color type="vec3d">0.9 0.95 0.94</base-color> | ||
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<grain-fade-power type="float">1.0</grain-fade-power> | <grain-fade-power type="float">1.0</grain-fade-power> | ||
<rock_strata>0</rock_strata> | <rock_strata>0</rock_strata> | ||
results in rock drawn like this: | |||
[[File:Rock-example1.jpg|500px|center|Procedural rock, example 1]] | |||
The following set of parameters | |||
<base-color type="vec3d">0.9 0.95 0.94</base-color> | |||
<overlay-color type="vec3d">0.9 0.95 0.94</overlay-color> | |||
<overlay-alpha type="float">0.4</overlay-alpha> | |||
<overlay-bias type="float">0.0</overlay-bias> | |||
<contrast type="float">0.8</contrast> | |||
<slope-contrast type="float">0.2</slope-contrast> | |||
<crack-depth type="float">0.5</crack-depth> | |||
<crack-pattern-stretch type="float">1.0</crack-pattern-stretch> | |||
<rock-brightness type="float">1.3</rock-brightness> | |||
<grain-fade-power type="float">0.8</grain-fade-power> | |||
<rock_strata>1</rock_strata> | |||
leads to stratified rock like this: | |||
[[File:Rock-example2.jpg|500px|center|Procedural rock, example 2]] | |||
=== Pixel color postprocessing === | === Pixel color postprocessing === | ||