Converts a 4x4 matrix to a 3x3 rotation matrix ignoring any scale and skew. If it's not orthogonal, the Z axis is preserved and the other two are made orthogonal.

proc `|=`(a: var GLbitfield; b: GLbitfield) {....raises: [], tags: [].}: Source Edit
func align4[T: SomeInteger](n: T): T: Source Edit
func align[T: SomeInteger](n, align: T): T: Increments the number to the nearest multiplier of the align parameter, if it's not already aligned. align must be a power of two. Source Edit
func bytelen[T](s: seq[T]): int: Provides the size of the seq in bytes. Source Edit
proc fibonacci_sphere(samples: int): seq[Vec3] {....raises: [], tags: [].}: Source Edit
func get_culling_planes(mat: Mat4): array[6, Vec4] {....raises: [], tags: [].}: Source Edit
func getOrDefault[T](s: seq[T]; i: int; default: T = T.default): T: Returns an element of the seq if the index is within bounds, otherwise it returns a default value, optionally given as argument. Source Edit
proc max[T](v: GVec2[T]): T {.inline.}: Source Edit
proc max[T](v: GVec3[T]): T {.inline.}: Source Edit
proc max[T](v: GVec4[T]): T {.inline.}: Source Edit
proc min[T](v: GVec2[T]): T {.inline.}: Source Edit
proc min[T](v: GVec3[T]): T {.inline.}: Source Edit
proc min[T](v: GVec4[T]): T {.inline.}: Source Edit
proc remove[T](s: var seq[T]; element: T): bool {....raises: [], discardable.}: Removes a value from a seq if it exists. Returns whether an item was removed. Preserves the order of the other elements. If the element is repeated, only one instance is removed. Source Edit
func remove_scale_skew[T](m: GMat4[T]): GMat4[T]: Source Edit
proc remove_unordered[T](s: seq[T]; element: T): bool {....raises: [], discardable.}: Removes a value from a seq if it exists. Returns whether an item was removed. It's quicker than remove by moving the last element to the slot of the removed one. If the element is repeated, only one instance is removed. Source Edit
func to_mat3[T](m: GMat4[T]): GMat3[T]: Source Edit
func to_mat3_rotation[T](m: GMat4[T]): GMat3[T]: Source Edit
func to_mat4[T](m: GMat3[T]): GMat4[T]: Source Edit
func to_normal_matrix[T](m: GMat4[T]): GMat3[T]: Source Edit

Iterators

iterator box_corners[T](bb: (GVec3[T], GVec3[T])): GVec3[T]: Source Edit

Templates

template `&`[T](a, b: (GVec3[T], GVec3[T])): (GVec3[T], GVec3[T]): Source Edit
template `|`[T](a, b: (GVec3[T], GVec3[T])): (GVec3[T], GVec3[T]): Source Edit
template error_enum_to_string(e: GLenum): string: Source Edit
template get_ptr_len[T](arr: seq[T]): (ptr UncheckedArray[T], int): Source Edit
template high[T](x: typedesc[GVec2[T]]): GVec2[T]: Source Edit
template high[T](x: typedesc[GVec3[T]]): GVec3[T]: Source Edit
template high[T](x: typedesc[GVec4[T]]): GVec4[T]: Source Edit
template low[T](x: typedesc[GVec2[T]]): GVec2[T]: Source Edit
template low[T](x: typedesc[GVec3[T]]): GVec3[T]: Source Edit
template low[T](x: typedesc[GVec4[T]]): GVec4[T]: Source Edit
template nonNil(x: untyped): bool: Source Edit
template PGLfloat[T](v: T): ptr GLfloat: Source Edit
template rotate_ccw[T](v: GVec3[T]): GVec3[T]: Source Edit
template rotate_cw[T](v: GVec3[T]): GVec3[T]: Source Edit
template staticOrDebugRead(path: string): string: Source Edit
template to_tuple[T](v: GVec2[T]): (T, T): Source Edit
template to_tuple[T](v: GVec3[T]): (T, T, T): Source Edit
template to_tuple[T](v: GVec4[T]): (T, T, T, T): Source Edit

util

Imports

Procs

Iterators

Templates