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Fixed divide by zero error in Camera projection

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Richard Davey 2017-09-16 03:36:39 +01:00
parent e224faa903
commit 2062b625d7
1 changed files with 6 additions and 0 deletions
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6
v3/src/camera/Camera3D.js
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@ -150,6 +150,12 @@ var Camera3D = new Class({
// Transform into clip space // Transform into clip space
tmpVec4.transformMat4(this.combined); tmpVec4.transformMat4(this.combined);
// Avoid divide by zero when 0x0x0 camera projects to a 0x0x0 vec3
if (tmpVec4.w === 0)
{
tmpVec4.w = 1;
}
// Now into NDC // Now into NDC
tmpVec4.x = tmpVec4.x / tmpVec4.w; tmpVec4.x = tmpVec4.x / tmpVec4.w;
tmpVec4.y = tmpVec4.y / tmpVec4.w; tmpVec4.y = tmpVec4.y / tmpVec4.w;