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I just tried these steps in GIMP 2.8.4:
- On the Dynamics list, hit "New" and created a new dynamics file. - Gave it an expendable name ("Test"), did not adjust any mappings or pressure curves, exited GIMP right away (GIMP saves it to a dynamics file automatically). So I now have a "Test.gdyn" file, with no actual dynamics mappings or input curves, and it's a 210KB in size -- wait, what? 210 KB? Yup. A full 215,501 bytes of absolutely nothing. I'd attach the file, but I think that's a bit over the size limits of the mailing list. But to sum up what the file looks like in a text editor: - Every output declaration (opacity-output, color-output, etc.) in the file reads like this: (use-pressure no) (use-velocity no) (use-direction no) (use-tilt no) (use-wheel no) (use-random no) (use-fade no) - (the above is repeated once per output, total 11 times) - And it's always followed by a curve declaration (pressure-curve, direction-curve, etc.) that looks like this: (curve-type smooth) (n-points 17) (points 34 0.000000 0.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 1.000000 1.000000) (n-samples 256) (samples 256 0.000000 0.003922 0.007843 0.011765 0.015686 0.019608 0.023529 0.027451 0.031373 0.035294 0.039216 0.043137 0.047059 0.050980 0.054902 0.058824 0.062745 0.066667 0.070588 0.074510 0.078431 0.082353 0.086275 0.090196 0.094118 0.098039 0.101961 0.105882 0.109804 0.113725 0.117647 0.121569 0.125490 0.129412 0.133333 0.137255 0.141176 0.145098 0.149020 0.152941 0.156863 0.160784 0.164706 0.168627 0.172549 0.176471 0.180392 0.184314 0.188235 0.192157 0.196078 0.200000 0.203922 0.207843 0.211765 0.215686 0.219608 0.223529 0.227451 0.231373 0.235294 0.239216 0.243137 0.247059 0.250980 0.254902 0.258824 0.262745 0.266667 0.270588 0.274510 0.278431 0.282353 0.286275 0.290196 0.294118 0.298039 0.301961 0.305882 0.309804 0.313725 0.317647 0.321569 0.325490 0.329412 0.333333 0.337255 0.341176 0.345098 0.349020 0.352941 0.356863 0.360784 0.364706 0.368627 0.372549 0.376471 0.380392 0.384314 0.388235 0.392157 0.396078 0.400000 0.403922 0.407843 0.411765 0.415686 0.419608 0.423529 0.427451 0.431373 0.435294 0.439216 0.443137 0.447059 0.450980 0.454902 0.458824 0.462745 0.466667 0.470588 0.474510 0.478431 0.482353 0.486275 0.490196 0.494118 0.498039 0.501961 0.505882 0.509804 0.513725 0.517647 0.521569 0.525490 0.529412 0.533333 0.537255 0.541176 0.545098 0.549020 0.552941 0.556863 0.560784 0.564706 0.568627 0.572549 0.576471 0.580392 0.584314 0.588235 0.592157 0.596078 0.600000 0.603922 0.607843 0.611765 0.615686 0.619608 0.623529 0.627451 0.631373 0.635294 0.639216 0.643137 0.647059 0.650980 0.654902 0.658824 0.662745 0.666667 0.670588 0.674510 0.678431 0.682353 0.686275 0.690196 0.694118 0.698039 0.701961 0.705882 0.709804 0.713725 0.717647 0.721569 0.725490 0.729412 0.733333 0.737255 0.741176 0.745098 0.749020 0.752941 0.756863 0.760784 0.764706 0.768627 0.772549 0.776471 0.780392 0.784314 0.788235 0.792157 0.796078 0.800000 0.803922 0.807843 0.811765 0.815686 0.819608 0.823529 0.827451 0.831373 0.835294 0.839216 0.843137 0.847059 0.850980 0.854902 0.858824 0.862745 0.866667 0.870588 0.874510 0.878431 0.882353 0.886275 0.890196 0.894118 0.898039 0.901961 0.905882 0.909804 0.913725 0.917647 0.921569 0.925490 0.929412 0.933333 0.937255 0.941176 0.945098 0.949020 0.952941 0.956863 0.960784 0.964706 0.968627 0.972549 0.976471 0.980392 0.984314 0.988235 0.992157 0.996078 1.000000) - (the above is repeated once per mapping, total 77(!) times) And it's all bloat. If I manually cut out all the input curve declarations (leaving only the mapping matrix definition) this reduces the filesize by 99%, and a much more reasonable 2.4kb. Ideas.... - Does GIMP really need to output pressure curves for an input that is not actually mapped to something? - Does GIMP really need to output a full lookup table if the specified curve type is "smooth" (the apparent default) and GIMP can just re-generate the lookup table when loading the file? - Why does the definition of a default linear curve -- i.e. (0,0)-(1,1) -- need to specify more than two points? - And since it is a default linear curve, does it even need to be specified at all? Hmmm. -- Stratadrake strata_ranger hotmail com -------------------- Numbers may not lie, but neither do they tell the whole truth. |