decided to rename 'atransform' back to 'transform'. added renderings by Geoffrey Irving to demonstrate the instance plugin (with permission)

doc/format.tex

@@ -292,7 +292,7 @@ and \emph{animated transformations} as parameters. The latter is useful to
 render scenes involving motion blur. The syntax used to specify these
 is slightly different:
 \begin{xml}
-<atransform name="trafoProperty">
+<animation name="trafoProperty">
   <transform time="0">
      .. chained list of transformations as discussed above ..
   </transform>
@@ -302,7 +302,7 @@ is slightly different:
   </transform>
 
   .. additional transformations (optional) ..
-</atransform>
+</animation>
 \end{xml}
 Mitsuba then decomposes each transformation into a scale, translation, and
 rotation component and interpolates\footnote{Using linear interpolation

doc/macros.sty

@@ -31,7 +31,7 @@
 \newcommand{\order}[1]{} % Ignore
 
 \newcommand{\Transform}{\texttt{transform}}
-\newcommand{\ATransform}{\texttt{atransform}}
+\newcommand{\Animation}{\texttt{animation}}
 \newcommand{\Spectrum}{\texttt{spectrum}}
 \newcommand{\Integer}{\texttt{integer}}
 \newcommand{\String}{\texttt{string}}

doc/main.tex

@@ -116,7 +116,7 @@
 		medium,film,sampler,integrator,emitter,sensor,
 		translate,rotate,scale,lookat,point,vector,matrix,
 		include,fscat,volume,alias,rfilter,boolean,
-		subsurface,atransform
+		subsurface,animation
 	},
 }
 

include/mitsuba/render/scenehandler.h

@@ -158,7 +158,7 @@ private:
 		EBoolean, EString, ETranslate, ERotate,
 		ELookAt, EScale, EMatrix, EPoint,
 		EVector, ERGB, ESRGB, EBlackBody,
-		ESpectrum, ETransform, EATransform,
+		ESpectrum, ETransform, EAnimation,
 		EInclude, EAlias
 	};
 

src/emitters/collimated.cpp

@@ -26,7 +26,7 @@ MTS_NAMESPACE_BEGIN
  * \icon{emitter_collimated}
  * \order{5}
  * \parameters{
- *     \parameter{toWorld}{\Transform\Or\ATransform}{
+ *     \parameter{toWorld}{\Transform\Or\Animation}{
  *	      Specifies an optional emitter-to-world transformation.
  *        \default{none (i.e. emitter space $=$ world space)}
  *     }

src/emitters/directional.cpp

@@ -25,7 +25,7 @@ MTS_NAMESPACE_BEGIN
  * \icon{emitter_directional}
  * \order{4}
  * \parameters{
- *     \parameter{toWorld}{\Transform\Or\ATransform}{
+ *     \parameter{toWorld}{\Transform\Or\Animation}{
  *	      Specifies an optional emitter-to-world transformation.
  *        \default{none (i.e. emitter space $=$ world space)}
  *     }

src/emitters/point.cpp

@@ -28,7 +28,7 @@ MTS_NAMESPACE_BEGIN
  * \icon{emitter_point}
  * \order{1}
  * \parameters{
- *     \parameter{toWorld}{\Transform\Or\ATransform}{
+ *     \parameter{toWorld}{\Transform\Or\Animation}{
  *	      Specifies an optional sensor-to-world transformation.
  *        \default{none (i.e. sensor space $=$ world space)}
  *     }

src/emitters/sky.cpp

@@ -71,7 +71,7 @@ MTS_NAMESPACE_BEGIN
  *         Specifies the relative amount of samples
  *         allocated to this emitter. \default{1}
  *     }
- *     \parameter{toWorld}{\Transform\Or\ATransform}{
+ *     \parameter{toWorld}{\Transform\Or\Animation}{
  *	      Specifies an optional sensor-to-world transformation.
  *        \default{none (i.e. sensor space $=$ world space)}
  *     }

src/emitters/spot.cpp

@@ -25,7 +25,7 @@ MTS_NAMESPACE_BEGIN
  * \icon{emitter_spot}
  * \order{3}
  * \parameters{
- *     \parameter{toWorld}{\Transform\Or\ATransform}{
+ *     \parameter{toWorld}{\Transform\Or\Animation}{
  *	      Specifies an optional sensor-to-world transformation.
  *        \default{none (i.e. sensor space $=$ world space)}
  *     }

src/libcore/properties.cpp

@@ -100,7 +100,7 @@ ref<const AnimatedTransform> Properties::getAnimatedTransform(const std::string
 	const Transform *result2 = boost::get<Transform>(&it->second.data);
 
 	if (!result1 && !result2)
-		SLog(EError, "The property \"%s\" has the wrong type (expected <atransform> or <transform>). The "
+		SLog(EError, "The property \"%s\" has the wrong type (expected <animation> or <transform>). The "
 				"complete property record is :\n%s", name.c_str(), toString().c_str());
 	it->second.queried = true;
 
@@ -118,7 +118,7 @@ ref<const AnimatedTransform> Properties::getAnimatedTransform(const std::string
 	const Transform *result2 = boost::get<Transform>(&it->second.data);
 
 	if (!result1 && !result2)
-		SLog(EError, "The property \"%s\" has the wrong type (expected <atransform> or <transform>). The "
+		SLog(EError, "The property \"%s\" has the wrong type (expected <animation> or <transform>). The "
 				"complete property record is :\n%s", name.c_str(), toString().c_str());
 
 	it->second.queried = true;
@@ -138,7 +138,7 @@ ref<const AnimatedTransform> Properties::getAnimatedTransform(const std::string
 	const Transform *result2 = boost::get<Transform>(&it->second.data);
 
 	if (!result1 && !result2)
-		SLog(EError, "The property \"%s\" has the wrong type (expected <atransform> or <transform>). The "
+		SLog(EError, "The property \"%s\" has the wrong type (expected <animation> or <transform>). The "
 				"complete property record is :\n%s", name.c_str(), toString().c_str());
 	it->second.queried = true;
 

src/librender/scenehandler.cpp

@@ -103,7 +103,7 @@ SceneHandler::SceneHandler(const SAXParser *parser,
 	m_tags["blackbody"]  = TagEntry(EBlackBody,  (Class *) NULL);
 	m_tags["spectrum"]   = TagEntry(ESpectrum,   (Class *) NULL);
 	m_tags["transform"]  = TagEntry(ETransform,  (Class *) NULL);
-	m_tags["atransform"] = TagEntry(EATransform, (Class *) NULL);
+	m_tags["animation"] = TagEntry(EAnimation, (Class *) NULL);
 	m_tags["include"]    = TagEntry(EInclude,    (Class *) NULL);
 	m_tags["alias"]      = TagEntry(EAlias,      (Class *) NULL);
 
@@ -254,7 +254,7 @@ void SceneHandler::startElement(const XMLCh* const xmlName,
 		case ETransform:
 			m_transform = Transform();
 			break;
-		case EATransform: {
+		case EAnimation: {
 				m_animatedTransform = new AnimatedTransform();
 				ref<VectorTrack> translation = new VectorTrack(VectorTrack::ETranslationXYZ);
 				ref<QuatTrack> rotation = new QuatTrack(VectorTrack::ERotationQuat);
@@ -606,7 +606,7 @@ void SceneHandler::endElement(const XMLCh* const xmlName) {
 			}
 			break;
 
-		case EATransform: {
+		case EAnimation: {
 				m_animatedTransform->sortAndSimplify();
 				context.parent->properties.setAnimatedTransform(
 					context.attributes["name"], m_animatedTransform);

src/mtsgui/save.cpp

@@ -84,7 +84,7 @@ static void setProperties(QDomDocument &doc, QDomElement &element,
 					std::set<Float> times;
 					trafo->collectKeyframes(times);
 
-					property = doc.createElement("atransform");
+					property = doc.createElement("animation");
 
 					for (std::set<Float>::iterator it2 = times.begin(); it2 != times.end(); ++it2) {
 						const Matrix4x4 &matrix = trafo->eval(*it2).getMatrix();

src/sensors/fluencemeter.cpp

@@ -26,7 +26,7 @@ MTS_NAMESPACE_BEGIN
 /*!\plugin{fluencemeter}{Fluence meter}
  * \order{7}
  * \parameters{
- *     \parameter{toWorld}{\Transform\Or\ATransform}{
+ *     \parameter{toWorld}{\Transform\Or\Animation}{
  *	      Specifies an optional sensor-to-world transformation.
  *        \default{none (i.e. sensor space $=$ world space)}
  *     }

src/sensors/orthographic.cpp

@@ -27,7 +27,7 @@ MTS_NAMESPACE_BEGIN
 /*!\plugin{orthographic}{Orthographic camera}
  * \order{3}
  * \parameters{
- *     \parameter{toWorld}{\Transform\Or\ATransform}{
+ *     \parameter{toWorld}{\Transform\Or\Animation}{
  *	      Specifies an optional camera-to-world transformation.
  *        \default{none (i.e. camera space $=$ world space)}
  *     }

src/sensors/perspective.cpp

@@ -26,7 +26,7 @@ MTS_NAMESPACE_BEGIN
 /*!\plugin{perspective}{Perspective pinhole camera}
  * \order{1}
  * \parameters{
- *     \parameter{toWorld}{\Transform\Or\ATransform}{
+ *     \parameter{toWorld}{\Transform\Or\Animation}{
  *	      Specifies an optional camera-to-world transformation.
  *        \default{none (i.e. camera space $=$ world space)}
  *     }

src/sensors/radiancemeter.cpp

@@ -25,7 +25,7 @@ MTS_NAMESPACE_BEGIN
 /*!\plugin{radiancemeter}{Radiance meter}
  * \order{6}
  * \parameters{
- *     \parameter{toWorld}{\Transform\Or\ATransform}{
+ *     \parameter{toWorld}{\Transform\Or\Animation}{
  *	      Specifies an optional sensor-to-world transformation.
  *        \default{none (i.e. sensor space $=$ world space)}
  *     }

src/sensors/spherical.cpp

@@ -25,7 +25,7 @@ MTS_NAMESPACE_BEGIN
 /*!\plugin{spherical}{Spherical camera}
  * \order{5}
  * \parameters{
- *     \parameter{toWorld}{\Transform\Or\ATransform}{
+ *     \parameter{toWorld}{\Transform\Or\Animation}{
  *	      Specifies an optional camera-to-world transformation.
  *        \default{none (i.e. camera space $=$ world space)}
  *     }

src/sensors/telecentric.cpp

@@ -27,7 +27,7 @@ MTS_NAMESPACE_BEGIN
 /*!\plugin{telecentric}{Telecentric lens camera}
  * \order{4}
  * \parameters{
- *     \parameter{toWorld}{\Transform\Or\ATransform}{
+ *     \parameter{toWorld}{\Transform\Or\Animation}{
  *	      Specifies an optional sensor-to-world transformation.
  *        \default{none (i.e. camera space $=$ world space)}
  *     }

src/sensors/thinlens.cpp

@@ -29,7 +29,7 @@ MTS_NAMESPACE_BEGIN
 /*!\plugin{thinlens}{Perspective camera with a thin lens}
  * \order{2}
  * \parameters{
- *     \parameter{toWorld}{\Transform\Or\ATransform}{
+ *     \parameter{toWorld}{\Transform\Or\Animation}{
  *	      Specifies an optional camera-to-world transformation.
  *        \default{none (i.e. camera space $=$ world space)}
  *     }

src/shapes/cylinder.cpp

@@ -43,7 +43,7 @@ MTS_NAMESPACE_BEGIN
  *	      Is the cylinder inverted, i.e. should the normal vectors
  *		  be flipped? \default{\code{false}, i.e. the normals point outside}
  *	   }
- *     \parameter{toWorld}{\Transform\Or\ATransform}{
+ *     \parameter{toWorld}{\Transform\Or\Animation}{
  *	      Specifies an optional linear object-to-world transformation.
  *        Note that non-uniform scales are not permitted!
  *        \default{none (i.e. object space $=$ world space)}

src/shapes/disk.cpp

@@ -31,7 +31,7 @@ MTS_NAMESPACE_BEGIN
 /*!\plugin{disk}{Disk intersection primitive}
  * \order{4}
  * \parameters{
- *     \parameter{toWorld}{\Transform\Or\ATransform}{
+ *     \parameter{toWorld}{\Transform\Or\Animation}{
  *	      Specifies a linear object-to-world transformation.
  *        Note that non-uniform scales are not permitted!
  *        \default{none (i.e. object space $=$ world space)}

src/shapes/instance.cpp

@@ -25,15 +25,33 @@ MTS_NAMESPACE_BEGIN
  * \parameters{
  *     \parameter{\Unnamed}{\ShapeGroup}{A reference to a
  *     shape group that should be instantiated}
- *     \parameter{toWorld}{\Transform\Or\ATransform}{
+ *     \parameter{toWorld}{\Transform\Or\Animation}{
  *	      Specifies an optional linear instance-to-world transformation.
  *        \default{none (i.e. instance space $=$ world space)}
  *     }
  * }
+ * \renderings{
+ *    \rendering{Surface viewed from the top}{shape_instance_fractal_top}
+ *    \rendering{Surface viewed from the bottom}{shape_instance_fractal_bot}
+ *    \caption{
+ *       A visualization of a fractal surface by Irving and Segerman.
+ *       (a 2D Gospel curve developed up to level 5 along the third
+ *       dimension). This scene makes use of instancing to replicate
+ *       similar structures to cheaply render a structure that effectively
+ *       consists of several hundred millions of triangles.
+ *    }
+ * }
  *
  * This plugin implements a geometry instance used to efficiently replicate
- * geometry many times. For details, please refer to the \pluginref{shapegroup}
- * plugin.
+ * geometry many times. For details on how to create instances, refer to
+ * the \pluginref{shapegroup} plugin.
+ * \remarks{
+ *   \item Note that it is \emph{not} possible to assign a different
+ *    material to each instance --- the material assignment specified within
+ *    the shape group is the one that matters.
+ *   \item Shape groups cannot be used to replicate shapes with
+ *   attached emitters, sensors, or subsurface scattering models.
+ * }
  */
 
 Instance::Instance(const Properties &props) : Shape(props) {

src/shapes/obj.cpp

@@ -55,7 +55,7 @@ MTS_NAMESPACE_BEGIN
  *       this convention. \default{\code{true}, i.e. flip them to get the
  *       correct coordinates}.
  *	   }
- *     \parameter{toWorld}{\Transform\Or\ATransform}{
+ *     \parameter{toWorld}{\Transform\Or\Animation}{
  *	      Specifies an optional linear object-to-world transformation.
  *        Note that non-uniform scales are not permitted!
  *        \default{none (i.e. object space $=$ world space)}

src/shapes/ply.cpp

@@ -62,7 +62,7 @@ MTS_NAMESPACE_BEGIN
  *       Optional flag to flip all normals. \default{\code{false}, i.e.
  *       the normals are left unchanged}.
  *	   }
- *     \parameter{toWorld}{\Transform\Or\ATransform}{
+ *     \parameter{toWorld}{\Transform\Or\Animation}{
  *	      Specifies an optional linear object-to-world transformation.
  *        Note that non-uniform scales are not permitted!
  *        \default{none (i.e. object space $=$ world space)}

src/shapes/rectangle.cpp

@@ -30,7 +30,7 @@ MTS_NAMESPACE_BEGIN
 /*!\plugin{rectangle}{Rectangle intersection primitive}
  * \order{3}
  * \parameters{
- *     \parameter{toWorld}{\Transform\Or\ATransform}{
+ *     \parameter{toWorld}{\Transform\Or\Animation}{
  *	      Specifies a linear object-to-world transformation.
  *        It is allowed to use non-uniform scaling, but no shear.
  *        \default{none (i.e. object space $=$ world space)}

src/shapes/serialized.cpp

@@ -55,7 +55,7 @@ MTS_NAMESPACE_BEGIN
  *       Optional flag to flip all normals. \default{\code{false}, i.e.
  *       the normals are left unchanged}.
  *	   }
- *     \parameter{toWorld}{\Transform\Or\ATransform}{
+ *     \parameter{toWorld}{\Transform\Or\Animation}{
  *	      Specifies an optional linear object-to-world transformation.
  *        Note that non-uniform scales are not permitted!
  *        \default{none (i.e. object space $=$ world space)}

src/shapes/shapegroup.cpp

@@ -34,9 +34,9 @@ MTS_NAMESPACE_BEGIN
  * so that they can efficiently be referenced many times using the
  * \pluginref{instance} plugin. This is useful for rendering things like
  * forests, where only a few distinct types of trees have to be kept
- * in memory.
+ * in memory. An example is given below:
  *
-
+ * \vspace{5mm}
  * \begin{xml}[caption={An example of geometry instancing}, label=lst:instancing]
  * <!-- Declare a named shape group containing two objects -->
  * <shape type="shapegroup" id="myShapeGroup">
@@ -68,14 +68,6 @@ MTS_NAMESPACE_BEGIN
  *     </transform>
  * </shape>
  * \end{xml}
- * \vspace{-2mm}
- * \remarks{
- *   \item Note that it is not possible to assign a different
- *    material to each instance --- the material assignment specified within
- *    the shape group is the one that matters.
- *   \item Shape groups can not be used to replicate shapes with
- *   attached emitters, sensors, or subsurface scattering models.
- * }
  */
 
 ShapeGroup::ShapeGroup(const Properties &props) : Shape(props) {

src/shapes/sphere.cpp

@@ -37,7 +37,7 @@ MTS_NAMESPACE_BEGIN
  *     \parameter{radius}{\Float}{
  *	     Radius of the sphere in object-space units \default{1}
  *	   }
- *     \parameter{toWorld}{\Transform\Or\ATransform}{
+ *     \parameter{toWorld}{\Transform\Or\Animation}{
  *	      Specifies an optional linear object-to-world transformation.
  *        Note that non-uniform scales are not permitted!
  *        \default{none (i.e. object space $=$ world space)}