| ▼CPGENLib.BRDF | An abstract class representing a Bidirectional Reflectance Distribution Function (BRDF). |
| CPGENLib.DiffuseBRDF | A class representing an ideal diffuse BRDF. |
| CPGENLib.SpecularBRDF | A class representing an ideal mirror BRDF. |
| CPGENLib.Color | |
| ▼CException | |
| CPGENLib.GrammarErrorException | An error found by the lexer/parser while reading a scene file. The fields of this type are the following:
| Message | a user-frendly error message |
| sourceLocation | a sourceLocation object pointing out the name of the file, the line number and the column number where the error occured |
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| CPGENLib.RuntimeError | |
| CPGENLib.ExpectParse | |
| ▼CFormatException | |
| CPGENLib.InvalidPfmFileFormat | |
| CPGENLib.HdrImage | A High-Dynamic-Range 2D image. This class has 3 members:
| Width | number (int) of columns in the 2D matrix of colors |
| Height | number (int) of rows in the 2D matrix of colors |
| Pixel | the 2D matrix (array of Color), represented as a 1D array |
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| CPGENLib.HitRecord | A class holding information about a ray-shape intersection. The parameters defined in this dataclass are the following:
| WorldPoint | a Point object holding the world coordinates of the hit point |
| Normal | a Normal object holding the orientation of the normal to the surface where the hit happened |
| SurfacePoint | a Vec2d object holding the position of the hit point on the surface of the object |
| t | a floating-point value specifying the distance from the origin of the ray where the hit happened |
| Ray | a Ray object that hit the surface |
| Material | the parameter Material of the Shape object hit by the ray |
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| ▼CPGENLib.ICamera | An interface representing an observer. Interface for camera: the method FireRay will be implemented in two different ways by OrthogonalCamera and PerspectiveCamera. |
| CPGENLib.OrthogonalCamera | This struct implements an observer seeing the world through an orthogonal projection. |
| CPGENLib.PerspectiveCamera | This class implements an observer seeing the world through a perspective projection. |
| CPGENLib.ImageTracer | Send rays from the Camera (observer) to corresponding pixels of an HdrImage (screen), converting "u-v" Camera coordinates to "column-raw" index of the HdrImage.
| Image | must be a :class:.HdrImage object that has already been initialized |
| Camera | must be a descendeant of the :class:.Camera object |
| Pcg | random number generator |
| SamplePerSize | If SamplesPerSide is larger than zero, stratified sampling will be applied to each pixel in the image, using the random number generator pcg |
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| CPGENLib.InputStream | This class implements a wrapper around a stream, with the following additional capabilities:
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It tracks the line number and column number;
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It permits to "un-read" characters and tokens.
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| CPGENLib.Material | A class representing a Material. The parameters defined in this dataclass are the following:
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| CPGENLib.Normal | A normal vector in 3D space. This struct has three floating-point fields: x, y, and z. |
| CPGENLib.PCG | PCG Uniform Pseudo-random Number Generator. |
| ▼CPGENLib.Pigment | This abstract class represents a pigment with a function that associates a color with each point on a parametric surface (u,v). |
| CPGENLib.CheckeredPigment | A checkered pigment. The number of rows/columns in the checkered pattern is tunable, but you cannot have a different number of repetitions along the u/v directions. The parameters defined in this dataclass are the following:
| Col1 | first Color |
| Col2 | second Color |
| NumStep | int number of repetition |
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| CPGENLib.ImagePigment | The texture is given through a PFM image. The parameters defined in this dataclass are the following:
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| CPGENLib.UniformPigment | A uniform pigment. |
| CPGENLib.Point | A point in 3D space. This struct has three floating-point fields: x, y, and z. |
| CPGENLib.PointLight | The class holds information about a pointlight (a Dirac's delta in the rendering equation) used by the PointLight Renderer. The fields are the following:
| Position | a Point object holding the position of the point light in 3D space |
| Color | a Color object being the color of the point light |
| LinearRadius | a float number used to compute the solid angle subtended by the light at a given distance d (r/d)^2 |
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| CPGENLib.Ray | |
| ▼CPGENLib.Renderer | A class implementing a solver of the rendering equation. This is an abstract class; you should use a derived concrete class. This class has 2 members:
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| CPGENLib.FlatRenderer | This renderer estimates the solution of the rendering equation by neglecting any contribution of the light. It just uses the pigment of each surface to determine how to compute the final radiance. |
| CPGENLib.OnOffRenderer | A on/off renderer, produces black and white images and is useful for debugging purposes. Other than Renderer's member it has the third member
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| CPGENLib.PathTracer | The algorithm implemented here allows the caller to tune number of rays thrown at each iteration, as well as the maximum depth. It implements Russian roulette to reduce the number of recursive calls.
| Pcg | Random number generator |
| NumbOfRays | Number of rays to be fired at each iteration |
| MaxDepth | Maximum number of reflections for any ray |
| RussianRouletteLimit | Minimum number of reflections for the Russian Roulette algorith to start |
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| CPGENLib.PointLightRenderer | Class that implements a Point Light renderer. The solid angle integral of the rendering equations can be simplified, because the integrand contains some localized Dirac deltas. |
| CPGENLib.Scene | A scene read from a scene file. |
| ▼CPGENLib.Shape | Interface for a generic 3D shape: the method RayIntersection is implemented in different concrete shapes. |
| CPGENLib.Cylinder | Class to represent a cylinder. |
| CPGENLib.Sphere | A 3D unit sphere centered on the axes origin. |
| CPGENLib.XyPlane | A 2D plane that you can put in the scene. Unless transformations are applied, the z=0 plane is constructed. |
| CPGENLib.SourceLocation | The class points out a specific location in a source file. The fields are:
| FileName | name of the file or empty string; |
| LineNum | number of line; |
| ColNum | number of column; |
|
| ▼CPGENLib.Token | A lexical token, used when parsing a scene file. |
| CPGENLib.IdentifierToken | A token containing an identifier. |
| CPGENLib.KeywordToken | A token containing a keyword. Parameters:
| Location | a SourceLocation object holding informations about token location in the file (filename, number of column, number of rows) |
| Keyword | a KeywordList object holding the possible Keyword options |
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| CPGENLib.LiteralNumberToken | A token containing a literal number. |
| CPGENLib.StopToken | A token representing the end of a file. |
| CPGENLib.StringToken | A token containing a literal string. |
| CPGENLib.SymbolToken | A token containing a symbol (i.e., a variable name). |
| CPGENLib.Transformation | An affine transformation. This class encodes an affine transformation. It has been designed with the aim of making the calculation of the inverse transformation particularly efficient. |
| CPGENLib.Tuple | |
| CPGENLib.Vec | A 3D vector. This class has three floating-point fields: x, y, and z. |
| CPGENLib.Vec2d | A 2D vector, with two floating point fields u and v. |
| CPGENLib.World | |
1.9.4