BVHToObject creates a single object from a BVH by wrapping each node in a (bounding-box filtered) joined object.

ClampColor clamps the color into the range [0, 1].

DestDensity is like mat.SourceDensity, but for SampleDest rather than SampleSource.

DirectionalCamera figures out where to move a camera in the given unit direction to capture the bounding box of an object.

JoinAreaLights creates a larger AreaLight by combining smaller AreaLights.

MatrixMultiply left-multiplies coordinates in an object by a matrix m.

NewCameraAt creates a new Camera that is looking at a point from another point.

NewColor creates a Color with a given brightness.

NewColorRGB creates a Color from sRGB values.

NewCylinderAreaLight turns a cylinder collider into an area light.

NewImage creates an image at a certain size.

NewMeshAreaLight creates an efficient area light from the triangle mesh.

NewSphereAreaLight turns a sphere collider into an area light.

Objectify turns a mesh, collider, or Object into a new Object with a specified coloration.

RGB gets sRGB values for a Color.

Rotate creates a new Object by rotating an Object by a given angle (in radians) around a given (unit) axis.

SampleDest is like mat.SampleSource, but it samples a destination direction.

SaveRandomGrid renders a 3D object from a variety of randomized angles and saves the grid of renderings to a file.

SaveRendering renders a 3D object from the given point and saves the image to a file.

SaveRotatingGIF saves a grayscale animated GIF panning around a model.

Scale creates a new Object by scaling an Object by the given factor along all axes.

Translate moves the object by an additive offset.

TriangleColorFunc creates a ColorFunc from a function that colors triangles.

BidirPathTracer is a bidirectional path traceb.

A Camera defines a viewer's position, orientation, and field of view for rendering.

A ColliderObject wraps a model3d.Collider in the Object interface, using a constant material.

CylinderAreaLight is a cylinder implementing an area light.

A FilteredObject only reports ray collisions if the ray collides with some bounds object.

HGMaterial implements the Henyey-Greenstein phase function for ray scattering.

A JoinedMaterial adds the BSDFs of multiple materials.

LambertMaterial is a completely matte material.

MeshAreaLight is an AreaLight for the surface of a mesh.

ParticipatingMedium is a volume in which a ray has a probability of hitting a particle, in which the collision probability increases with distance.

A PhongFocusPoint uses a distribution proportional to cos(theta)^alpha, just like phong shading.

PhongMaterial implements the Phong reflection model.

A PointLight is a light eminating from a point and going in all directions equally.

A RayCaster renders objects using simple one-step ray tracing with no recursion.

A RecursiveRayTracer renders objects using recursive tracing with random sampling.

RefractMaterial is an approximate refraction material based on a delta function.

SphereAreaLight is a perfect sphere implementing an area light.

SphereFocusPoint uses a distribution that samples rays which hit a specific sphere.

AreaLight is a surface that emits light.

AsymMaterial is a specialized Material with a different sampling distribution for destination and source vectors.

A FocusPoint is some part of the scene that warrants extra rays (e.g.

A Material determines how light bounces off a locally flat surface.

An Object is a renderable 3D object.

Color is a linear RGB color, where X, Y, and Z store R, G, and B respectively.

ColorFunc determines a color for collisions on a surface.

A JoinedObject combines multiple Objects.