1. Core Functionality

Core functionality examples

Name

Description

Preview

Ray Intersection Points

Tracking of and visualisation of where rays intersect with objects in the scene.

../_images/ray_intersection_points_fig1.png

Point Inside A Material

Finding all primitives which contain a test point.

../_images/test_point_inside_material.png

Energy conservation

Checking all emitted light is collected correctly on a 3D enclosing surface.

Multiple Importance Sampling

The classic multiple importance sampling demo re-implemented from E. Veach’s PhD thesis.

../_images/multiple_importance_sampling.jpg

2. Materials

Examples of the different material properties available

Name

Description

Preview

Emissive colours

Simple coloured emissive materials.

../_images/emissive_colours.png

Diffuse colours

Simple diffuse coloured materials.

../_images/diffuse_colours.png

Metals

Loading metal materials from the library.

../_images/metal_balls.png

Glass

Loading glass materials from the library.

../_images/glass_bunny.jpg

Diamond

Making a diamond material.

../_images/diamond.jpg

Surface roughness

Material properties can be varied from smooth to rough with a material roughness modifier.

../_images/surface_roughness.jpg

Anisotropic surface emitters

Make an anisotropic material with a custom emission function.

../_images/anisotropic_emitters_preview.png

Custom volume emitters

Make a custom volume emitter with your own 3D function.

../_images/volume_inhomogeneous.png

Polar BRDF plots

Producing polar plots of material BRDFs.

../_images/brdf_polar_plots.png

3D surface BRDF plots

Producing 3D surface plots of material BRDFs.

../_images/brdf_surface3d_plots.png

3. Observers

Examples of the different types of observers

Name

Description

Preview

Cornell Box

An industry standard test scene for benchmarking ray-tracers. Also demonstrates how to setup and configure a basic pinhole camera in Raysect.

../_images/cornell_box_mis_1550_samples.png

Orthographic camera

Using the orthographic camera.

../_images/orthographic_camera.png

Optical fibre

Spectral observations from an optical fibre.

../_images/optical_fibre_power.png

Mesh Observers

Making observations on a mesh surface.

../_images/mesh_observers.jpg

Making a camera 1

Making a camera from components.

../_images/cornell_box_real_lens.png

Making a camera 2

Another example of making a camera from components.

../_images/metal_balls_with_lens.png

Making animations

Looping over the observe loop whilst changing the position of primitives generates an animation.

../_images/animation_preview.jpg

4. Optics

Example scenes

Name

Description

Preview

Prism dispersion

White light is split into its component colours as it passes through a glass prism.

../_images/prism_720x405.png

Etendue

Calculating the etendue of a pinhole with ray-tracing.

../_images/etendue_of_pinhole.png