Package: libnoise0 X-Debbugs-Cc: cliffjki...@gmail.com Version: 1.0.0+repack-1+b1 Severity: important Tags: upstream
Dear Maintainer, I observed out of bounds condition with GradientCoherentNoise3D. Per source header documentation: /// @returns The generated gradient-coherent-noise value. /// /// The return value ranges from -1.0 to +1.0. Test cases: GradientCoherentNoise3D(0.25,-0.45,0.5)=1.00355 GradientCoherentNoise3D(-0.05,-0.45,0.5)=1.00432 GradientCoherentNoise3D(0.3,-0.5,0.5)=1.00751 GradientCoherentNoise3D(0.2,-0.45,0.5)=1.01694 GradientCoherentNoise3D(0,-0.45,0.5)=1.02274 GradientCoherentNoise3D(0.15,-0.45,0.5)=1.02594 GradientCoherentNoise3D(0.05,-0.45,0.5)=1.02919 GradientCoherentNoise3D(0.1,-0.45,0.5)=1.03015 GradientCoherentNoise3D(0.25,-0.5,0.5)=1.03285 GradientCoherentNoise3D(-0.05,-0.5,0.5)=1.03658 GradientCoherentNoise3D(0.2,-0.5,0.5)=1.05275 GradientCoherentNoise3D(0,-0.5,0.5)=1.06107 GradientCoherentNoise3D(0.15,-0.5,0.5)=1.06634 GradientCoherentNoise3D(0.05,-0.5,0.5)=1.07129 GradientCoherentNoise3D(0.1,-0.5,0.5)=1.07279 Expected results: Return value ranges from -1.0 to +1.0 I contacted the author, who confirmed the source is unmaintained, and indicated that this may just be a documentation error. But, if anyone built software based on the documented domain, it will eventually fall beyond the documented domain. Hence I classified this as "important" and not "normal".
