Notes:Normal map generation - Revision history

Frankiezafe: /* Code */

2018-01-03T15:59:04Z

‎Code

2018-01-03T15:35:06Z

2018-01-03T15:34:43Z

2018-01-03T15:34:08Z

2018-01-03T15:30:46Z

‎References

2018-01-03T15:29:52Z

‎References

2018-01-03T15:28:06Z

‎Code

2018-01-03T15:24:13Z

‎Code

2018-01-03T15:23:55Z

‎Code

2018-01-03T15:20:26Z

‎Code

@@ Line 43: / Line 43: @@
      fill( red, green, 255, 255 - m * 255 );
+  }
-−
   public void deepen( PVector dir, float depth, float percent ) {
      float sm = ( 1 + sin( -HALF_PI + percent * PI ) ) * 0.5;

← Older revision		Revision as of 15:35, 3 January 2018
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	[[File:Normal-map-generation desktop.png\|500px]]		[[File:Normal-map-generation desktop.png\|500px]]
−
−	~~First generated file.~~
−
−	~~[[File:Normal map generated with processing.png\|200px]]~~

	== Principles ==		== Principles ==

← Older revision		Revision as of 15:34, 3 January 2018
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	<html><iframe src="https://player.vimeo.com/video/249526108?title=0&byline=0&portrait=0" width="960" height="540" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe></html>		<html><iframe src="https://player.vimeo.com/video/249526108?title=0&byline=0&portrait=0" width="960" height="540" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe></html>
		+
		+	[[File:Normal-map-generation desktop.png\|500px]]

	First generated file.		First generated file.

@@ Line 3: / Line 3: @@
 Demo in blender.
-<html><iframe src="https://player.vimeo.com/video/249526108?title=0&byline=0&portrait=0" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe></html>
+<html><iframe src="https://player.vimeo.com/video/249526108?title=0&byline=0&portrait=0" width="960" height="540" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe></html>
 First generated file.

← Older revision		Revision as of 15:29, 3 January 2018
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	* http://online.ts2009.com/mediaWiki/index.php/Normal_map		* http://online.ts2009.com/mediaWiki/index.php/Normal_map
	* https://www.katsbits.com/tutorials/textures/making-normal-maps-from-photographs.php		* https://www.katsbits.com/tutorials/textures/making-normal-maps-from-photographs.php
		+
		+	[[category:generative]]
		+	[[category:Code snippet‏‎]]
		+	[[category:blender‏‎]]
		+	[[category:3D]]
		+	[[category:processing.org]]
		+	[[category:notes]]

← Older revision		Revision as of 15:28, 3 January 2018
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	[[File:Normal map tuto.png]]		[[File:Normal map tuto.png]]
		+
		+	See blender sculpture tools for naming convention:
		+	[[File:Blender scult tool.png\|200px]]

	static final int COLOR_PINCH = 0;		static final int COLOR_PINCH = 0;

@@ Line 29: / Line 29: @@
 The 3 static int at the beginning of the code correspond to these effects, demonstrated in 5 and 50 pixels width.
-[[File:Normal map tuto.png|256px]]
+[[File:Normal map tuto.png]]
   static final int COLOR_PINCH = 0;

← Older revision		Revision as of 15:23, 3 January 2018
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	This code comes from processing (java). But it can be easily adapted to other languages. Please take into account that this code '''is not optimised''' for realtime use! This part will come next time I'll work on this topic.		This code comes from processing (java). But it can be easily adapted to other languages. Please take into account that this code '''is not optimised''' for realtime use! This part will come next time I'll work on this topic.
		+
		+	The 3 static int at the beginning of the code correspond to these effects, demonstrated in 5 and 50 pixels width.
		+
		+	[[File:Normal map tuto.png\|256px]]

	static final int COLOR_PINCH = 0;		static final int COLOR_PINCH = 0;

@@ Line 9: / Line 9: @@
 [[File:Normal map generated with processing.png|200px]]
-== Code ==
+== Principles ==
 To achieve the "engravement" effect, rectangles must be drawn using the following rule:
@@ Line 16: / Line 16: @@
 * angles in X and Y are limited to the range [-90°, 90°], represented as the color range [0, 255].
 * therefore, an angle of -45° on X is represented by the red value 64, by making 127 - 63
-* to draw an engraved line, you need to take into account the direction of the line, as it will influence the X and Y slopes.
+* to draw an engraved line, you need to process the line direction, as it will influence the X and Y slopes.
 [[File:Normalhow01.jpg|300px]]
 thanks to [http://online.ts2009.com/mediaWiki/index.php/Normal_map Trainz Wiki] for this very usefull schema!
 == References ==
 * http://online.ts2009.com/mediaWiki/index.php/Normal_map
 * https://www.katsbits.com/tutorials/textures/making-normal-maps-from-photographs.php