Returns a single 2D point in a Hammersley sequence of length "numSamples", using base 1 and base 2

Check whether the mesh contains normal vectors

Check whether the mesh contains positions. Provided no special scene flags are set (such as #AI_SCENE_FLAGS_ANIM_SKELETON_ONLY), this will always be t

Check whether the mesh contains tangent and bitangent vectors It is not possible that it contains tangents and no bitangents (or the other way round).

Check whether the mesh contains a texture coordinate set \param pIndex Index of the texture coordinates set

Initializes the mesh as a plane

Returns the result of performing a irradiance integral over the portion of the hemisphere covered by a region with angular radius = theta

Computes a radical inverse with base 2 using crazy bit-twiddling from "Hacker's Delight"

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Returns the contents of a file as a string

Renders all meshes using depth-only rendering for a sun shadow map

Renders all meshes to the G-Buffer

Renders all meshes in the model, with shadows

Render shadows for all spot lights

Renders meshes using cascaded shadow mapping

Returns a 2D sample from a particular pattern using correlated multi-jittered sampling [Kensler 2013]

Smoothstep cubic interpolation

Returns true if a sphere intersects a capped cone defined by a direction, height, and angle

Convert from spherical coordinates to Cartesian coordinates(x, y, z)

Maps a value inside the square [0,1]x[0,1] to a value in a disk of radius 1 using concentric squares. This mapping preserves area, bi continuity, and