--- Operating System, Graphics card ---
os: windows 7 64bit
gpu: nvidia quadro k4000
--- Blender version with error, and version that worked ---
error: r60797
working: dont know
--- Short description of error ---
the decimate modifier creates some really nasty results with the collapse method. one would expect some behavior like the remove doubles function does so the mesh output is "usable"
see screenshot for comparison of the 2
--- Steps for others to reproduce the error (preferably based on attached .blend file) ---
1. open blend file
2. select the object named "decimate"
3. play with the decimate modifier
4. notice the result is a mess
Description
Description
Revisions and Commits
Revisions and Commits
Event Timeline
Comment Actions
That's probably because the decimate is trying to preserve the exact shape of the original model while lowering the vertice count.
While the model you obtain from remove double and increasing the merge distance does not look anymore at all like the original model (it has lost all its hard egdes as you can see and look smooth)
To see what i mean, take your original model, go to edit mode, select it all and click a dozen of time on the "Smooth Vertex" button, so your model lose its hard edges and become smoother.
Now use the decimate collapse and notice how the faces will now look more similar to what a remove double would do, because the model is smooth and the decimate does not have to preserve the hard edge look anymore.
Comment Actions
well i see what you are talking about but in a lot of scenarios a smoothing will change the mesh more than a uniform decimation would.
also the mesh slivers are a most undesired result where probably almost all artists would prefer a slight surface difference to bad triangulation.
Comment Actions
Note, this still gives skinny faces - but its not over-collapsing some areas while ignoring others anymore.