Documentation:Tutorial Section 3.5 - Revision history

Clipka: Indexentries fix

2016-12-16T14:24:34Z

Indexentries fix

Clipka at 22:48, 3 May 2016

2016-05-03T22:48:17Z

Jholsenback: link typo

2012-07-01T16:22:32Z

link typo

Jholsenback: link correction

2012-07-01T16:01:28Z

link correction

Jholsenback: 1 revision: link repair after reference reorg

2012-07-01T12:00:07Z

1 revision: link repair after reference reorg

Jholsenback: link repair

2012-06-30T21:29:07Z

link repair

ThorstenFroehlich at 20:03, 26 November 2011

2011-11-26T20:03:26Z

Jholsenback: image format changes

2011-06-02T10:49:00Z

image format changes

Jholsenback: continue cleanup pass

2010-09-16T17:02:37Z

continue cleanup pass

Jholsenback: heading changes

2010-03-25T08:19:58Z

heading changes

@@ Line 8: / Line 8: @@
 <!--</wikitalk>--->
 <!--REMOVE--->===Advanced Texture Options===<!--THIS--->
 {{#indexentry:Special Textures, limitations of}}
 <p>There are a couple limitations to all of the special textures we have seen
 (from textures, pigment and normal maps through material maps). First, if we
@@ Line 68: / Line 68: @@
 just waiting to be created!</p>
 {{#indexentry:Atmospheric Effects, using}}
 <p>POV-Ray offers a variety of atmospheric effects, i. e. features that
 affect the background of the scene or the air by which everything is
@@ Line 87: / Line 87: @@
 Last but not least you can add a rainbow to your scene.</p>
 {{#indexentry:Background, tutorial}}
 <p>The <code>[[Reference:Background|background]]</code> feature is used to assign a color to all rays
 that do not hit any object. This is done in the following way.</p>
@@ Line 106: / Line 106: @@
 translucency remains after all sky sphere pigment layers are processed.</p>
 {{#indexentry:Sky Sphere, the}}
 {{#indexentry:sky_sphere, tutorial}}
 <p>The <code>[[Reference:Sky Sphere|sky_sphere]]</code> can be used to easily create a cloud covered
 sky, a nightly star sky or whatever sky you have in mind.</p>
@@ Line 115: / Line 115: @@
 will get more and more complex as we add new features to it.</p>
 {{#indexentry:Sky, with a color gradient}}
 <p>Beside the single color sky sphere that is covered with the background
 feature the simplest sky sphere is a color gradient. You may have noticed
@@ Line 273: / Line 273: @@
 <p>Looking at the resulting image you will see what impressive effects you
 can achieve with the sky sphere.</p>
 {{#indexentry:Clouds, adding}}
 <p>To further improve our image we want to add some clouds by adding a second
 pigment. This new pigment uses the bozo pattern to create some nice clouds.
@@ Line 330: / Line 331: @@
 cast shadows you will have to use a real, large sphere with an appropriate
 texture and a light source somewhere outside the sphere.</p>
 {{#indexentry:Fog, adding}}
 {{#indexentry:fog, tutorial}}
 <p>You can use the <code>[[Reference:Fog|fog]]</code> feature to add fog of two different types
 to your scene: constant fog and ground fog. The constant fog has a constant
@@ Line 341: / Line 343: @@
 detail.</p>
 {{#indexentry:Fog, constant}}
 <p>The simplest fog type is the constant fog that has a constant density in
 all locations. It is specified by a <code>distance</code> keyword which
@@ Line 408: / Line 410: @@
 in the greenish fog we used, as does the checkerboard plane.</p>
 {{#indexentry:Fog, setting minimum translucency}}
 <p>If you want to make sure that the background does not completely vanish in
 the fog you can set the transmittance channel of the fog's color to the
@@ Line 438: / Line 440: @@
 </table>
 {{#indexentry:Fog, filtering}}
 <p>The greenish fog we have used so far does not filter the light passing
 through it. All it does is to diminish the light's intensity. We can
@@ Line 473: / Line 475: @@
 influenced by the fog. The red and especially the blue sphere got a green
 hue.</p>
 {{#indexentry:Fog, adding turbulence}}
 <p>In order to make our somewhat boring fog a little bit more interesting we
 can add some turbulence, making it look like it had a non-constant density
@@ Line 514: / Line 517: @@
 turbulence value at a point along the viewing ray.</p>
 {{#indexentry:Ground Fog, using}}
 {{#indexentry:Fog, ground}}
 <p>The much more interesting and flexible fog type is the ground fog, which
 is selected with the <code>[[Reference:Fog|fog_type]]</code> statement.

@@ Line 106: / Line 106: @@
 translucency remains after all sky sphere pigment layers are processed.</p>
-{{#indexentry:Sky Sphere, the|sky_sphere, tutorial}}
+{{#indexentry:Sky Sphere, the}}
 ====The Sky Sphere====
 <p>The <code>[[Reference:Sky Sphere|sky_sphere]]</code> can be used to easily create a cloud covered
@@ Line 513: / Line 514: @@
 turbulence value at a point along the viewing ray.</p>
-{{#indexentry:Ground Fog, using|Fog, ground}}
+{{#indexentry:Ground Fog, using}}
 =====Using Ground Fog=====
 <p>The much more interesting and flexible fog type is the ground fog, which

@@ Line 518: / Line 518: @@
 is selected with the <code>[[Reference:Fog|fog_type]]</code> statement.
 Its appearance is described with the <code>[[Reference:Fog|fog_offset]]</code>
-and <code>[[Reference:#Fog|fog_alt]]</code> keywords.
+and <code>[[Reference:Fog|fog_alt]]</code> keywords.
 The <code>fog_offset</code> specifies the height, i. e. y value, below which
 the fog has a constant density of one. The <code>fog_alt</code> keyword

@@ Line 158: / Line 158: @@
 The scale and translate transformation are used to map the points derived
 from the direction vector to the right range. Without those transformations
-the pattern would be repeated twice on the sky sphere. The <code>[[Reference:Transformations#scale|scale]]</code>
+the pattern would be repeated twice on the sky sphere. The <code>[[Reference:Transformations#Scale|scale]]</code>
-statement is used to avoid the repetition and the <code>[[Reference:Transformations#translate|translate]] -1</code>
+statement is used to avoid the repetition and the <code>[[Reference:Transformations#Translate|translate]] -1</code>
 statement moves the color at index zero to the bottom of the sky sphere
 (that is the point of the sky sphere you will see if you look straight

@@ Line 89: / Line 89: @@
 {{#indexentry:Background, tutorial}}
 ====The Background====
-<p>The <!--<linkto "background">background</linkto>---><code>[[Documentation:Reference Section 3.1#Background|background]]</code> feature is used to assign a color to all rays
+<p>The <code>[[Reference:Background|background]]</code> feature is used to assign a color to all rays
 that do not hit any object. This is done in the following way.</p>
 <pre>
@@ Line 108: / Line 108: @@
 {{#indexentry:Sky Sphere, the|sky_sphere, tutorial}}
 ====The Sky Sphere====
-<p>The <!--<linkto "sky_sphere">sky_sphere</linkto>---><code>[[Documentation:Reference Section 3.1#Sky Sphere|sky_sphere]]</code> can be used to easily create a cloud covered
+<p>The <code>[[Reference:Sky Sphere|sky_sphere]]</code> can be used to easily create a cloud covered
 sky, a nightly star sky or whatever sky you have in mind.</p>
 <p>
@@ Line 158: / Line 158: @@
 The scale and translate transformation are used to map the points derived
 from the direction vector to the right range. Without those transformations
-the pattern would be repeated twice on the sky sphere. The <!--<linkto "scale">scale</linkto>---><code>[[Documentation:Reference Section 8.1#Transformations|scale]]</code>
+the pattern would be repeated twice on the sky sphere. The <code>[[Reference:Transformations#scale|scale]]</code>
-statement is used to avoid the repetition and the <!--<linkto "translate">translate</linkto>---><code>[[Documentation:Reference Section 8.1#Transformations|translate]] -1</code>
+statement is used to avoid the repetition and the <code>[[Reference:Transformations#translate|translate]] -1</code>
 statement moves the color at index zero to the bottom of the sky sphere
 (that is the point of the sky sphere you will see if you look straight
@@ Line 192: / Line 192: @@
 the zenith.</p>
 <p>
-In POV-Ray you first have to convert the degree value to <!--<linkto "radians">radians</linkto>---><code>[[Documentation:Reference Section 2#Functions|radians]]</code>
+In POV-Ray you first have to convert the degree value to <code>[[Reference:Numeric Expressions#Functions|radians]]</code>
 as it is shown in the following example.</p>
 <pre>
@@ Line 332: / Line 332: @@
 {{#indexentry:fog, tutorial}}
 ====The Fog====
-<p>You can use the <!--<linkto "fog">fog</linkto>---><code>[[Documentation:Reference Section 3.1#Fog|fog]]</code> feature to add fog of two different types
+<p>You can use the <code>[[Reference:Fog|fog]]</code> feature to add fog of two different types
 to your scene: constant fog and ground fog. The constant fog has a constant
 density everywhere while the ground fog's density decreases as you move
@@ Line 344: / Line 344: @@
 <p>The simplest fog type is the constant fog that has a constant density in
 all locations. It is specified by a <code>distance</code> keyword which
-actually describes the fog's density and a fog <!--<linkto "color">color</linkto>---><code>[[Documentation:Reference Section 3.1#Fog|color]]</code>.</p>
+actually describes the fog's density and a fog <code>[[Reference:Fog|color]]</code>.</p>
 <p>
 The distance value determines the distance at which 36.8% of the background
 is still visible (for a more detailed explanation of how the fog is
-calculated read the reference section <!--<linkto "Fog">Fog</linkto>--->[[Documentation:Reference Section 3.1#Fog|Fog]]).</p>
+calculated read the reference section [[Reference:Fog|Fog]]).</p>
 <p>
 The fog color can be used to create anything from a pure white to a red,
@@ Line 516: / Line 516: @@
 =====Using Ground Fog=====
 <p>The much more interesting and flexible fog type is the ground fog, which
-is selected with the <!--<linkto "fog_type">fog_type</linkto>---><code>[[Documentation:Reference Section 3.1#Fog|fog_type]]</code> statement.
+is selected with the <code>[[Reference:Fog|fog_type]]</code> statement.
-Its appearance is described with the <!--<linkto "fog_offset">fog_offset</linkto>---><code>[[Documentation:Reference Section 3.1#Fog|fog_offset]]</code>
+Its appearance is described with the <code>[[Reference:Fog|fog_offset]]</code>
-and <!--<linkto "fog_alt">fog_alt</linkto>---><code>[[Documentation:Reference Section 3.1#Fog|fog_alt]]</code> keywords.
+and <code>[[Reference:#Fog|fog_alt]]</code> keywords.
 The <code>fog_offset</code> specifies the height, i. e. y value, below which
 the fog has a constant density of one. The <code>fog_alt</code> keyword

← Older revision	Revision as of 12:00, 1 July 2012
(No difference)

@@ Line 35: / Line 35: @@
 and make our layered texture part of the texture pattern instead, like
 this</p>
 <pre>
    // This part declares a pigment for use
@@ Line 170: / Line 171: @@
 as you can see in the resulting image.</p>
-<p>[[Image:TutImgSkyspher.png|A simple gradient sky sphere.]]</p>
+<table class="centered" width="340px" cellpadding="0" cellspacing="10">
 <p>If you want to start one of the colors at a specific angle you will
@@ Line 245: / Line 257: @@
 would be at 0 degrees, i.e. right below us.</p>
-<p>[[Image:TutImgRedsun.png|A red sun descends into the night.]]</p>
+<table class="centered" width="340px" cellpadding="0" cellspacing="10">
 <p>Looking at the resulting image you will see what impressive effects you
@@ Line 288: / Line 311: @@
 </pre>
-<p>[[Image:TutImgCloudsky.png|A cloudy sky with a setting sun.]]</p>
+<table class="centered" width="340px" cellpadding="0" cellspacing="10">
 <p>The sky sphere has one drawback as you might notice when looking at the
@@ Line 357: / Line 391: @@
 </pre>
-<p>[[Image:TutImgSmplfog.png|A foggy scene.]]</p>
+<table class="centered" width="340px" cellpadding="0" cellspacing="10">
 <p>According to their distance the spheres in this scene more or less vanish
@@ Line 379: / Line 424: @@
 resulting image (<code>fog2.pov</code>).</p>
-<p>[[Image:TutImgBgvisfog.png|Fog with translucency threshold added.]]</p>
+<table class="centered" width="340px" cellpadding="0" cellspacing="10">
 =====Creating a Filtering Fog=====
 <!--<indexentry "Fog, filtering">--->
@@ Line 398: / Line 455: @@
 would have been filtered. The remaining 30% would have passed unfiltered.</p>
-<p>[[Image:TutImgFiltfog.png|A filtering fog.]]</p>
+<table class="centered" width="340px" cellpadding="0" cellspacing="10">
 <p>You will notice that the intensity of the objects in the fog is not only
@@ Line 418: / Line 486: @@
 </pre>
-<p>[[Image:TutImgTurbfog.png|Fog made more interesting with turbulence]]</p>
+<table class="centered" width="340px" cellpadding="0" cellspacing="10">
 <p>The <code>turbulence</code> keyword is used to specify the amount of
@@ Line 458: / Line 537: @@
 </pre>
-<p>[[Image:TutImgLowfog.png|An example of ground fog.]]</p>
+<table class="centered" width="340px" cellpadding="0" cellspacing="10">
 <!--<wikinav>--->
 <br>

@@ Line 7: / Line 7: @@
 <br>
 <!--</wikitalk>--->
-===Limitations Of Special Textures===
+<!--REMOVE--->===Advanced Texture Options===<!--THIS--->
 <!--<indexentry "Special Textures, limitations of">--->
 <p>There are a couple limitations to all of the special textures we have seen
@@ Line 85: / Line 86: @@
 Last but not least you can add a rainbow to your scene.</p>
-===The Background===
+====The Background====
 <!--<indexentry "Background, tutorial">--->
 <p>The <code><!--<linkto "background">background</linkto>--->[[Documentation:Reference Section 3.1#Background|background]]</code> feature is used to assign a color to all rays
@@ Line 104: / Line 105: @@
 translucency remains after all sky sphere pigment layers are processed.</p>
-===The Sky Sphere===
+====The Sky Sphere====
 <!--<indexentry "Sky Sphere, the" "sky_sphere, tutorial">--->
 <p>The <code><!--<linkto "sky_sphere">sky_sphere</linkto>--->[[Documentation:Reference Section 3.1#Sky Sphere|sky_sphere]]</code> can be used to easily create a cloud covered
@@ Line 112: / Line 113: @@
 will get more and more complex as we add new features to it.</p>
-===Creating a Sky with a Color Gradient===
+=====Creating a Sky with a Color Gradient=====
 <!--<indexentry "Sky, with a color gradient">--->
 <p>Beside the single color sky sphere that is covered with the background
@@ Line 199: / Line 200: @@
 everything is red while above 120 degrees all is blue.</p>
-===Adding the Sun===
+=====Adding the Sun=====
 <p>In the following example we will create a sky with a red sun surrounded by
 a red color halo that blends into the dark blue night sky. We will do this
@@ Line 248: / Line 249: @@
 <p>Looking at the resulting image you will see what impressive effects you
 can achieve with the sky sphere.</p>
-===Adding Some Clouds===
+=====Adding Some Clouds=====
 <!--<indexentry "Clouds, adding">--->
 <p>To further improve our image we want to add some clouds by adding a second
@@ Line 294: / Line 295: @@
 cast shadows you will have to use a real, large sphere with an appropriate
 texture and a light source somewhere outside the sphere.</p>
-===The Fog===
+====The Fog====
 <!--<indexentry "Fog, adding">--->
 <!--<indexentry "fog, tutorial">--->
@@ Line 305: / Line 306: @@
 detail.</p>
-===A Constant Fog===
+=====A Constant Fog=====
 <!--<indexentry "Fog, constant">--->
 <p>The simplest fog type is the constant fog that has a constant density in
@@ Line 361: / Line 362: @@
 in the greenish fog we used, as does the checkerboard plane.</p>
-===Setting a Minimum Translucency===
+=====Setting a Minimum Translucency=====
 <!--<indexentry "Fog, setting minimum translucency">--->
 <p>If you want to make sure that the background does not completely vanish in
@@ Line 379: / Line 380: @@
 <p>[[Image:TutImgBgvisfog.png|Fog with translucency threshold added.]]</p>
-===Creating a Filtering Fog===
+=====Creating a Filtering Fog=====
 <!--<indexentry "Fog, filtering">--->
 <p>The greenish fog we have used so far does not filter the light passing
@@ Line 403: / Line 404: @@
 influenced by the fog. The red and especially the blue sphere got a green
 hue.</p>
-===Adding Some Turbulence to the Fog===
+=====Adding Some Turbulence to the Fog=====
 <!--<indexentry "Fog, adding turbulence">--->
 <p>In order to make our somewhat boring fog a little bit more interesting we
@@ Line 432: / Line 433: @@
 Only the distance-based attenuation value of the fog is modified by the
 turbulence value at a point along the viewing ray.</p>
-===Using Ground Fog===
+=====Using Ground Fog=====
 <!--<indexentry "Ground Fog, using" "Fog, ground">--->
 <p>The much more interesting and flexible fog type is the ground fog, which