Reference:Object Modifiers - Revision history

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A variety of modifiers may be attached to objects. The following items may
be applied to any object:
<pre>
OBJECT_MODIFIER:
clipped_by { UNTEXTURED_SOLID_OBJECT... } |
clipped_by { bounded_by } |
bounded_by { UNTEXTURED_SOLID_OBJECT... } |
bounded_by { clipped_by } |
no_shadow |
no_image [ Bool ] |
no_radiosity [ Bool ] |
no_reflection [ Bool ] |
inverse |
sturm [ Bool ] |
hierarchy [ Bool ] |
double_illuminate [ Bool ] |
hollow [ Bool ] |
interior { INTERIOR_ITEMS... } |
material { [MATERIAL_IDENTIFIER][MATERIAL_ITEMS...] } |
texture { TEXTURE_BODY } |
interior_texture { TEXTURE_BODY } |
pigment { PIGMENT_BODY } |
normal { NORMAL_BODY } |
finish { FINISH_ITEMS... } |
photons { PHOTON_ITEMS...}
radiosity { RADIOSITY_ITEMS...}
TRANSFORMATION
</pre>

Transformations such as translate, rotate and scale have already been discussed. The modifiers [[Reference:Texture|Textures]] and its parts [[Reference:Pigment|Pigment]], [[Reference:Normal|Normal]], and [[Reference:Finish|Finish]] as well as [[Reference:Interior|Interior]], and [[Reference:Media|Media]] (which is part of interior) are each in major chapters of their own below. In the sub-sections below we cover several other important modifiers: <code>[[Reference:Clipped By Object Modifier|clipped_by]]</code>, <code>[[Reference:Bounded By Object Modifier|bounded_by]]</code>, <code>[[Reference:Material|material]]</code>, <code>[[Reference:Inverse Object Modifier|inverse]]</code>, <code>[[Reference:Hollow Object Modifier|hollow]]</code>, <code>[[Reference:No Shadow Object Modifier|no_shadow]]</code>, <code>[[Reference:No Image Object Modifier|no_image]]</code>, <code>[[Reference:No Reflection Object Modifier|no_reflection]]</code>, <code>[[Reference:Double Illuminate Object Modifier|double_illuminate]]</code>, <code>[[Reference:No Radiosity Object Modifier|no_radiosity]]</code> and <code>[[Reference:Sturm Object Modifier|sturm]]</code>. Although the examples below use object statements and object identifiers, these modifiers may be used on any type of object such as sphere, box etc.

@@ Line 30: / Line 30: @@
 <p class="Note"><strong>Note:</strong> Some conditions can produce unexpected results. When applied to <em>CSG</em> components most modifiers work as expected, however by design some modifiers are not passed from nested objects to a <em>CSG</em> resultant involving those objects.</p>
-<p>This is true when using the following keywords and / or keyword blocks: <code>[[Reference:No Image Object Modifier|no_image]]</code>, <code>[[Reference:No Reflection Object Modifier|no_reflection]]</code>, <code>[[Reference:No Shadow Object Modifier|no_shadow]]</code>, <code>[[Reference:No Radiosity Object Modifier|no_radiosity]]</code>, <code>[[Reference:Double Illuminate Object Modifier|double_illuminate]]</code>, <code>[[Reference:Hollow Object Modifier|hollow]]</code>, <code>[[Reference:Photons|photons]]</code> and <code>[[Reference:Radiosity|radiosity]]</code>. <em>CSG</em> unions pass all modifiers listed above unless <code>split_union off</code> has been set, in which case the later list is ignored as with <code>difference</code>, <code>intersection</code> and <code>merge</code>.</p>
+<p>This is true when using the following keywords and / or keyword blocks: <code>[[Reference:No Image Object Modifier|no_image]]</code>, <code>[[Reference:No Reflection Object Modifier|no_reflection]]</code>, <code>[[Reference:No Shadow Object Modifier|no_shadow]]</code>, <code>[[Reference:No Radiosity Object Modifier|no_radiosity]]</code>, <code>[[Reference:Double Illuminate Object Modifier|double_illuminate]]</code>, <code>[[Reference:Hollow Object Modifier|hollow]]</code>, <code>[[Reference:Photons|photons]]</code> and <code>[[Reference:Radiosity|radiosity]]</code>. <em>CSG</em> unions pass all modifiers listed above unless <code>split_union off</code> has been set, in which case the former list is ignored as with <code>difference</code>, <code>intersection</code> and <code>merge</code>.</p>
 <p>While not technically object modifiers, object interior and finish subsurface blocks see similar <em>CSG</em> propagation complications.  Interiors get attached to the objects where interiors are defined. The <code>interior</code> and <code>subsurface</code> object and finish modifier block results, respectively, vary where definitions are part of components making up any given <em>CSG</em>. Furthermore, in the case of subsurface, if the distance between the two surfaces is similar or smaller than the translucency value, we start to see through the object. In a <em>CSG</em>, if the back surface doesn't have a similar translucency, you may also see unexpected results.</p>

@@ Line 28: / Line 28: @@
 </pre>
-<p>Some conditions can produce unexpected results. When applied to <em>CSG</em> components these modifiers work as expected: <em>All Transforms</em>, <code>[[Reference:Inverse Object Modifier|inverse]]</code>, <code>[[Reference:Bounded By Object Modifier|bounded_by]]</code>, <code>[[Reference:Clipped By Object Modifier|clipped_by]]</code>, <code>[[Reference:Cutaway Textures|cutaway_textures]]</code>, <em>Hierarchy</em>, and <code>[[Reference:Sturm Object Modifier|sturm]]</code>. However by design some modifiers are not passed from nested objects to a <em>CSG</em> resultant involving those objects. This is true when using the following keywords and / or keyword blocks: <code>[[Reference:No Image Object Modifier|no_image]]</code>, <code>[[Reference:No Reflection Object Modifier|no_reflection]]</code>, <code>[[Reference:No Shadow Object Modifier|no_shadow]]</code>, <code>[[Reference:No Radiosity Object Modifier|no_radiosity]]</code>, <code>[[Reference:Double Illuminate Object Modifier|double_illuminate]]</code>, <code>[[Reference:Hollow Object Modifier|hollow]]</code>, <code>[[Reference:Photons|photons]]</code> and <code>[[Reference:Radiosity|radiosity]]</code>. Setting <code>[[Reference:Union#Split_Union|split_union off]]</code> provides the exception with unions and their accepting unions. Interiors get attached to the objects where interiors are defined. The <code>interior</code> and <code>subsurface</code> object and finish modifier block results, respectively, vary where definitions are part of components making up any given <em>CSG</em>. In the case of subsurface, if the distance between the two surfaces is similar or smaller than the translucency value, we start to see through the object. In a <em>CSG</em>, if the back surface doesn't have a similar translucency, you can get unexpected results.</p>
+<p class="Note"><strong>Note:</strong> Some conditions can produce unexpected results. When applied to <em>CSG</em> components most modifiers work as expected, however by design some modifiers are not passed from nested objects to a <em>CSG</em> resultant involving those objects.</p>
-<p>See also: <em>All Transforms</em> <code>[[Reference:Transformations#translate|translate]]</code>, <code>[[Reference:Transformations#rotate|rotate]]</code> and <code>[[Reference:Transformations#scale|scale]]</code></p>
+<p>This is true when using the following keywords and / or keyword blocks: <code>[[Reference:No Image Object Modifier|no_image]]</code>, <code>[[Reference:No Reflection Object Modifier|no_reflection]]</code>, <code>[[Reference:No Shadow Object Modifier|no_shadow]]</code>, <code>[[Reference:No Radiosity Object Modifier|no_radiosity]]</code>, <code>[[Reference:Double Illuminate Object Modifier|double_illuminate]]</code>, <code>[[Reference:Hollow Object Modifier|hollow]]</code>, <code>[[Reference:Photons|photons]]</code> and <code>[[Reference:Radiosity|radiosity]]</code>. <em>CSG</em> unions pass all modifiers listed above unless <code>split_union off</code> has been set, in which case the later list is ignored as with <code>difference</code>, <code>intersection</code> and <code>merge</code>.</p>
-<p>See also: <em>Hierarchy</em> <code>[[Reference:Blob|blob]]</code> and <code>[[Reference:Height Field|height_field]]</code></p>
 <p>See also: <code>[[Reference:Material|material]]</code>, <code>[[Reference:Texture|texture]]</code>, <code>[[Reference:Pigment|pigment]]</code>, <code>[[Reference:Normal|normal]]</code> and <code>[[Reference:Finish|finish]]</code></p>
-<p>See also: <code>[[Reference:Interior|interior]]</code>, and <code>[[Reference:Media|media]]</code></p>
+<p>See also: <code>[[Reference:Interior|interior]]</code> and <code>[[Reference:Media|media]]</code></p>

@@ Line 1: / Line 1: @@
-<p>A variety of modifiers may be attached to objects. The following items may
+<p>A variety of modifiers can be attached to objects. Some modifiers are specific to a particular object or group of objects, while some modifiers can be applied to all objects. Objects can anything from a simple predefined primitive, such as a [[Reference:Sphere|sphere]] or a [[Reference:Box|box]] to a complex object using <em>Constructive Solid Geometry</em> or [[Reference:Constructive Solid Geometry|CSG]].</p>
-be applied to any object:</p>
 <pre>
 OBJECT_MODIFIER:
@@ Line 27: / Line 27: @@
    TRANSFORMATION
 </pre>
-<p>When applied to [[Reference:Constructive Solid Geometry|CSG]] components these modifiers work as expected: <em>All Transforms</em>, <code>[[Reference:Inverse Object Modifier|inverse]]</code>, <code>[[Reference:Bounded By Object Modifier|bounded_by]]</code>, <code>[[Reference:Clipped By Object Modifier|clipped_by]]</code>, <code>[[Reference:Cutaway Textures|cutaway_textures]]</code>, <em>Hierarchy</em>, and <code>[[Reference:Sturm Object Modifier|sturm]]</code>. However by design some modifiers are not passed from nested objects to a <em>CSG</em> resultant involving those objects. This is true when using the following keywords and / or keyword blocks: <code>[[Reference:No Image Object Modifier|no_image]]</code>, <code>[[Reference:No Reflection Object Modifier|no_reflection]]</code>, <code>[[Reference:No Shadow Object Modifier|no_shadow]]</code>, <code>[[Reference:No Radiosity Object Modifier|no_radiosity]]</code>, <code>[[Reference:Double Illuminate Object Modifier|double_illuminate]]</code>, <code>[[Reference:Hollow Object Modifier|hollow]]</code>, <code>[[Reference:Photons|photons]]</code> and <code>[[Reference:Radiosity|radiosity]]</code>. Setting <code>[[Reference:Union#Split_Union|split_union off]]</code> provides the exception with unions and their accepting unions.</p>
-<p>Although the examples below use object statements and object identifiers, these modifiers may be used on any type of object such as sphere, box etc.</p>
+<p>Some conditions can produce unexpected results. When applied to <em>CSG</em> components these modifiers work as expected: <em>All Transforms</em>, <code>[[Reference:Inverse Object Modifier|inverse]]</code>, <code>[[Reference:Bounded By Object Modifier|bounded_by]]</code>, <code>[[Reference:Clipped By Object Modifier|clipped_by]]</code>, <code>[[Reference:Cutaway Textures|cutaway_textures]]</code>, <em>Hierarchy</em>, and <code>[[Reference:Sturm Object Modifier|sturm]]</code>. However by design some modifiers are not passed from nested objects to a <em>CSG</em> resultant involving those objects. This is true when using the following keywords and / or keyword blocks: <code>[[Reference:No Image Object Modifier|no_image]]</code>, <code>[[Reference:No Reflection Object Modifier|no_reflection]]</code>, <code>[[Reference:No Shadow Object Modifier|no_shadow]]</code>, <code>[[Reference:No Radiosity Object Modifier|no_radiosity]]</code>, <code>[[Reference:Double Illuminate Object Modifier|double_illuminate]]</code>, <code>[[Reference:Hollow Object Modifier|hollow]]</code>, <code>[[Reference:Photons|photons]]</code> and <code>[[Reference:Radiosity|radiosity]]</code>. Setting <code>[[Reference:Union#Split_Union|split_union off]]</code> provides the exception with unions and their accepting unions. Interiors get attached to the objects where interiors are defined. The <code>interior</code> and <code>subsurface</code> object and finish modifier block results, respectively, vary where definitions are part of components making up any given <em>CSG</em>. In the case of subsurface, if the distance between the two surfaces is similar or smaller than the translucency value, we start to see through the object. In a <em>CSG</em>, if the back surface doesn't have a similar translucency, you can get unexpected results.</p>
 <p>See also: <em>All Transforms</em> <code>[[Reference:Transformations#translate|translate]]</code>, <code>[[Reference:Transformations#rotate|rotate]]</code> and <code>[[Reference:Transformations#scale|scale]]</code></p>

@@ Line 27: / Line 27: @@
    TRANSFORMATION
 </pre>
-<p>When applied to [[Reference:Constructive Solid Geometry|CSG]] components these modifiers work as expected: <em>All Transforms</em>, <code>[[Reference:Inverse Object Modifier|inverse]]</code>, <code>[[Reference:Bounded By Object Modifier|bounded_by]]</code>, <code>[[Reference:Clipped By Object Modifier|clipped_by]]</code>, <code>[[Reference:Cutaway_Textures|cutaway_textures]]</code>, <em>Hierarchy</em>, and <code>[[Reference:Sturm Object Modifier|sturm]]</code>. However by design some modifiers are not passed from nested objects to a <em>CSG</em> resultant involving those objects. This is true when using the following keywords and / or keyword blocks: <code>[[Reference:No Image Object Modifier|no_image]]</code>, <code>[[Reference:No Reflection Object Modifier|no_reflection]]</code>, <code>[[Reference:No Shadow Object Modifier|no_shadow]]</code>, <code>[[Reference:No Radiosity Object Modifier|no_radiosity]]</code>, <code>[[Reference:Double Illuminate Object Modifier|double_illuminate]]</code>, <code>[[Reference:Hollow Object Modifier|hollow]]</code>, <code>[[Reference:Photons|photons]]</code> and <code>[[Reference:Radiosity|radiosity]]</code>. Setting <code>[[Reference:Union#Split_Union|split_union off]]</code> provides the exception with unions and their accepting unions.</p>
+<p>When applied to [[Reference:Constructive Solid Geometry|CSG]] components these modifiers work as expected: <em>All Transforms</em>, <code>[[Reference:Inverse Object Modifier|inverse]]</code>, <code>[[Reference:Bounded By Object Modifier|bounded_by]]</code>, <code>[[Reference:Clipped By Object Modifier|clipped_by]]</code>, <code>[[Reference:Cutaway Textures|cutaway_textures]]</code>, <em>Hierarchy</em>, and <code>[[Reference:Sturm Object Modifier|sturm]]</code>. However by design some modifiers are not passed from nested objects to a <em>CSG</em> resultant involving those objects. This is true when using the following keywords and / or keyword blocks: <code>[[Reference:No Image Object Modifier|no_image]]</code>, <code>[[Reference:No Reflection Object Modifier|no_reflection]]</code>, <code>[[Reference:No Shadow Object Modifier|no_shadow]]</code>, <code>[[Reference:No Radiosity Object Modifier|no_radiosity]]</code>, <code>[[Reference:Double Illuminate Object Modifier|double_illuminate]]</code>, <code>[[Reference:Hollow Object Modifier|hollow]]</code>, <code>[[Reference:Photons|photons]]</code> and <code>[[Reference:Radiosity|radiosity]]</code>. Setting <code>[[Reference:Union#Split_Union|split_union off]]</code> provides the exception with unions and their accepting unions.</p>
 <p>Although the examples below use object statements and object identifiers, these modifiers may be used on any type of object such as sphere, box etc.</p>

@@ Line 27: / Line 27: @@
    TRANSFORMATION
 </pre>
-<p>By design modifiers are not passed from nested objects to a [[Reference:Constructive Solid Geometry|CSG]] resultant involving those objects. Setting <code>[[Reference:Union#Split_Union|split_union off]]</code> provides the exception with unions and their excepting unions.</p>
+<p>When applied to [[Reference:Constructive Solid Geometry|CSG]] components these modifiers work as expected: <em>All Transforms</em>, <code>[[Reference:Inverse Object Modifier|inverse]]</code>, <code>[[Reference:Bounded By Object Modifier|bounded_by]]</code>, <code>[[Reference:Clipped By Object Modifier|clipped_by]]</code>, <code>[[Reference:Cutaway_Textures|cutaway_textures]]</code>, <em>Hierarchy</em>, and <code>[[Reference:Sturm Object Modifier|sturm]]</code>. However by design some modifiers are not passed from nested objects to a <em>CSG</em> resultant involving those objects. This is true when using the following keywords and / or keyword blocks: <code>[[Reference:No Image Object Modifier|no_image]]</code>, <code>[[Reference:No Reflection Object Modifier|no_reflection]]</code>, <code>[[Reference:No Shadow Object Modifier|no_shadow]]</code>, <code>[[Reference:No Radiosity Object Modifier|no_radiosity]]</code>, <code>[[Reference:Double Illuminate Object Modifier|double_illuminate]]</code>, <code>[[Reference:Hollow Object Modifier|hollow]]</code>, <code>[[Reference:Photons|photons]]</code> and <code>[[Reference:Radiosity|radiosity]]</code>. Setting <code>[[Reference:Union#Split_Union|split_union off]]</code> provides the exception with unions and their accepting unions.</p>
 <p>Although the examples below use object statements and object identifiers, these modifiers may be used on any type of object such as sphere, box etc.</p>
-<p>See also: <code>[[Reference:Transformations#translate|translate]]</code>, <code>[[Reference:Transformations#rotate|rotate]]</code> and <code>[[Reference:Transformations#scale|scale]]</code></p>
+<p>See also: <em>All Transforms</em> <code>[[Reference:Transformations#translate|translate]]</code>, <code>[[Reference:Transformations#rotate|rotate]]</code> and <code>[[Reference:Transformations#scale|scale]]</code></p>
+<p>See also: <em>Hierarchy</em> <code>[[Reference:Blob|blob]]</code> and <code>[[Reference:Height Field|height_field]]</code></p>
-<p>See also: <em>[[Reference:Texture|Textures]]</em> and its constituents <em>[[Reference:Pigment|Pigment]]</em>, <em>[[Reference:Normal|Normal]]</em>, and <em>[[Reference:Finish|Finish]]</em></p>
+<p>See also: <code>[[Reference:Material|material]]</code>, <code>[[Reference:Texture|texture]]</code>, <code>[[Reference:Pigment|pigment]]</code>, <code>[[Reference:Normal|normal]]</code> and <code>[[Reference:Finish|finish]]</code></p>
+<p>See also: <code>[[Reference:Interior|interior]]</code>, and <code>[[Reference:Media|media]]</code></p>

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