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prevent zero scale for Line3DOverlay

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This commit is contained in:
Andrew Meadows 2017-09-27 14:30:26 -07:00
parent b602c18475
commit 26ea7034d8
1 changed files with 3 additions and 2 deletions
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5
interface/src/ui/overlays/Line3DOverlay.cpp
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@ -278,9 +278,10 @@ Transform Line3DOverlay::evalRenderTransform() {
auto endPos = getEnd(); auto endPos = getEnd();
auto vec = endPos - transform.getTranslation(); auto vec = endPos - transform.getTranslation();
auto scale = glm::length(vec); const float MIN_LINE_LENGTH = 0.0001f;
auto scale = glm::max(glm::length(vec), MIN_LINE_LENGTH);
auto dir = vec / scale; auto dir = vec / scale;
auto orientation = glm::rotation(glm::vec3(0,0,-1), dir); auto orientation = glm::rotation(glm::vec3(0.0f, 0.0f, -1.0f), dir);
transform.setRotation(orientation); transform.setRotation(orientation);
transform.setScale(scale); transform.setScale(scale);