# The contents of this file are subject to the Common Public Attribution License # Version 1.0 (the “License”); you may not use this file except in compliance # with the License. You may obtain a copy of the License at # https://myou.dev/licenses/LICENSE-CPAL. The License is based on the Mozilla # Public License Version 1.1 but Sections 14 and 15 have been added to cover use # of software over a computer network and provide for limited attribution for # the Original Developer. In addition, Exhibit A has been modified to be # consistent with Exhibit B. # # Software distributed under the License is distributed on an “AS IS” basis, # WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for # the specific language governing rights and limitations under the License. # # The Original Code is Myou Engine. # # the Original Developer is the Initial Developer. # # The Initial Developer of the Original Code is the Myou Engine developers. # All portions of the code written by the Myou Engine developers are Copyright # (c) 2024. All Rights Reserved. # # Alternatively, the contents of this file may be used under the terms of the # GNU Affero General Public License version 3 (the [AGPL-3] License), in which # case the provisions of [AGPL-3] License are applicable instead of those above. # # If you wish to allow use of your version of this file only under the terms of # the [AGPL-3] License and not to allow others to use your version of this file # under the CPAL, indicate your decision by deleting the provisions above and # replace them with the notice and other provisions required by the [AGPL-3] # License. If you do not delete the provisions above, a recipient may use your # version of this file under either the CPAL or the [AGPL-3] License. import vmath except Quat, quat func plane_from_norm_point*(normal, point: Vec3): Vec4 = ## Calculates a plane from a normal and a point in the plane. ## ## Gives the plane equation in form Ax + By + Cy + D = 0, ## where A,B,C,D is given as vec4(x,y,z,w) respectively. let n = normal.normalize let p = point vec4(n.x, n.y, n.z, -(n.x*p.x+n.y*p.y+n.z*p.z))