From aa905ff8a384fbc6f9283bbdabb65bb0ae8bb0dd Mon Sep 17 00:00:00 2001 From: Jules Laplace Date: Thu, 17 Jan 2019 15:13:14 +0100 Subject: mv --- site/assets/demo/cloud/src/getOptimalFontSize.js | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 site/assets/demo/cloud/src/getOptimalFontSize.js (limited to 'site/assets/demo/cloud/src/getOptimalFontSize.js') diff --git a/site/assets/demo/cloud/src/getOptimalFontSize.js b/site/assets/demo/cloud/src/getOptimalFontSize.js new file mode 100644 index 00000000..02787516 --- /dev/null +++ b/site/assets/demo/cloud/src/getOptimalFontSize.js @@ -0,0 +1,18 @@ +import {Vector3} from 'three'; + +let objectWorldPosition = new Vector3(); +let cameraWorldPosition = new Vector3(); +let objectWorldScale = new Vector3(); + +export default function(object, renderer, camera) { + if (renderer.domElement.width && renderer.domElement.height && object.material.map.textLines.length) { + let distance = object.getWorldPosition(objectWorldPosition).distanceTo(camera.getWorldPosition(cameraWorldPosition)); + if (distance) { + let heightInPixels = object.getWorldScale(objectWorldScale).y * renderer.domElement.height / distance; + if (heightInPixels) { + return Math.round(heightInPixels / object.material.map.imageHeight); + } + } + } + return 0; +} -- cgit v1.2.3-70-g09d2