thi.ng.geom.core.matrix — thi.ng/geom-core 0.3.0-SNAPSHOT

frustum clj/s

(frustum l t r b n f)

Sets up a viewing frustum, shaped like a truncated pyramid with the camera where the tip of the pyramid would be. This emulates the OpenGL function glFrustum().

frustum-bounds clj/s

(frustum-bounds fovy aspect near)

look-at clj/s

(look-at eye target up)

Returns a matrix that puts the camera at the eye position looking toward the target point with the given up direction.

look-at-vectors clj/s

(look-at-vectors ex ey ez tx ty tz)

M32 clj/s

M44 clj/s

Matrix32 cljs

matrix32 clj/s

(matrix32)

(matrix32 [m00 m01 m02 m10 m11 m12])

(matrix32 m00 m01 m02 m10 m11 m12)

matrix44 clj/s

(matrix44)

(matrix44 [m00 m01 m02 m03 m10 m11 m12 m13 m20 m21 m22 m23 m30 m31 m32 m33])

(matrix44 m00 m01 m02 m03 m10 m11 m12 m13 m20 m21 m22 m23 m30 m31 m32 m33)

Matrix44 cljs

matrix44->matrix33 clj/s

(matrix44->matrix33 [m00 m01 m02 _ m10 m11 m12 _ m20 m21 m22])

matrix44->matrix33-rot clj/s

(matrix44->matrix33-rot [m00 m01 m02 _ m10 m11 m12 _ m20 m21 m22])

ortho clj/s

(ortho l t r b n f)

Returns an orthographic projection matrix, in which objects are the same size no matter how far away or nearby they are. This emulates the OpenGL function glOrtho().

perspective clj/s

(perspective fovy aspect near far)

Returns a perspective transform matrix, which makes far away objects appear smaller than nearby objects. The aspect argument should be the width divided by the height of your viewport and fov is the vertical angle of the field of view in degrees.

perspective-frustum clj/s

(perspective-frustum fov aspect near far)

project-point clj/s

(project-point p mvp vtx)

project-point-z clj/s

(project-point-z p mvp vtx)

unproject-point clj/s

(unproject-point v vmat pmat {:keys [p width height]})

Takes a vec3 in screenspace, view matrix, projection matrix and view rect. Returns vector in model space or nil.

viewport-transform clj/s

(viewport-transform width height)

(viewport-transform width height invert-y?)