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* Throw exception if the spot light computed cosine angle is not valid

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This commit is contained in:
shadowislord 2014-06-01 14:32:49 -04:00
parent 7cdc473e14
commit 76147fc5f7
1 changed files with 9 additions and 5 deletions
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14
jme3-core/src/main/java/com/jme3/light/SpotLight.java
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@ -68,15 +68,19 @@ public class SpotLight extends Light implements Savable {
} }
private void computePackedCos() { private void computePackedCos() {
float innerCos=FastMath.cos(spotInnerAngle); float innerCos = FastMath.cos(spotInnerAngle);
float outerCos=FastMath.cos(spotOuterAngle); float outerCos = FastMath.cos(spotOuterAngle);
packedAngleCos=(int)(innerCos*1000); packedAngleCos = (int) (innerCos * 1000);
//due to approximations, very close angles can give the same cos //due to approximations, very close angles can give the same cos
//here we make sure outer cos is bellow inner cos. //here we make sure outer cos is bellow inner cos.
if(((int)packedAngleCos)== ((int)(outerCos*1000)) ){ if (((int) packedAngleCos) == ((int) (outerCos * 1000))) {
outerCos -= 0.001f; outerCos -= 0.001f;
} }
packedAngleCos+=outerCos; packedAngleCos += outerCos;
if (packedAngleCos == 0.0f) {
throw new IllegalArgumentException("Packed angle cosine is invalid");
}
} }
@Override @Override