Matrix:transformPoint

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Revision as of 15:28, 13 July 2023 by Hgy29 (talk | contribs) (Text replacement - "<source" to "<syntaxhighlight")

Available since: Gideros 2013.9
Class: Matrix

Description

Transforms the matrix to an array of points. This function applies the geometric transform represented by the Matrix to a specified array of points. <syntaxhighlight lang="lua"> Matrix:transformPoint() </source>

Example

In this example we reset the player1 matrix by transforming it to the points (0, 0, 0) and we use the result for the lighting <syntaxhighlight lang="lua"> -- game loop function LevelX:onEnterFrame(e) local matrix = self.player1.body:getTransform() local playerx, playery, playerz = self.player1.body:getTransform():getPosition() -- move player local force = 12 if self.player1.isleft and not self.player1.isright then self.player1.body:applyLocalForceAtCenterOfMass(0, 0, force) elseif self.player1.isright and not self.player1.isleft then self.player1.body:applyLocalForceAtCenterOfMass(0, 0, -force) end -- position the player model along its body self.player1:setMatrix(matrix) -- the camera FPS style self.camera:lookAt(playerx+0.1, playery+24, playerz+4, playerx, playery, playerz+4 ) -- lighting local px, py, pz = matrix:transformPoint(0, 0, 0) -- hgy29 Lighting.setLight(px, py+8, pz+1, 0.2) Lighting.setLightTarget(px, py, pz, 32, 20) --Compute shadows Lighting.computeShadows(self.scene) end </source>



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