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ja:rhino:meshfaq [2015/09/14] |
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+ | ====== Rhinoのメッシュ設定 ====== | ||
+ | // | ||
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+ | > <color slategray> | ||
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+ | ====Accessing the Meshing Settings==== | ||
+ | The controls for the Render Mesh (display mesh) settings are part of the .3dm file's properties. In Rhino for Windows they can be reached via **File > Properties > Mesh** or **Tools > Options > Mesh**; in Mac Rhino they can be accessed via **File > Settings > Mesh** | ||
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+ | They are generally set globally for the whole model, but from V4 on - including Mac Rhino - you can also override them on a per-object basis via the Properties panel. | ||
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+ | Rhino offers you 2 // | ||
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+ | ====The Standard settings==== | ||
+ | * **Jagged and Faster** is the default for render meshes --- fine for general visualization purposes. | ||
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+ | * **Smooth and Slower** offers better resolution at the expense of longer meshing times.\\ | ||
+ | * //(In V4, the smooth and slower setting did not work that well, in V5 it works better!)// | ||
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+ | * **Custom** allows the user the maximum flexibility in tailoring the mesh settings to their needs, at the expense of being a bit more complex to understand and set up. | ||
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+ | > // | ||
+ | |||
+ | |||
+ | ---- | ||
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+ | ====The Custom Settings==== | ||
+ | <color darkslateblue>// | ||
+ | |||
+ | When you check **Custom** in V5 (Mac or Win) you are first presented with a simple slider controlling the **// | ||
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+ | If you then push the **Detailed Controls** button in Windows Rhino, or the little **down arrow** in Mac Rhino, it will reveal all the other " | ||
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+ | There are //seven// numerical settings and //three// check boxes. | ||
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+ | [[rhino: | ||
+ | |||
+ | [[rhino: | ||
+ | |||
+ | **Below is a basic start point for custom settings**, you will need to do some experimentation with them on your models. //If a setting is 0 or 0.0, it is turned off (not taken into a account).// | ||
+ | |||
+ | |**Density**| | ||
+ | |**Maximum angle**| | ||
+ | |**Maximum aspect ratio**| | ||
+ | |**Maximum edge length**| | ||
+ | |**Maximum distance edge to surface** | ||
+ | |**Minimum initial grid quads**| | ||
+ | |||
+ | Refine mesh **checked**\\ | ||
+ | Jagged seams **// | ||
+ | Simple planes **// | ||
+ | |||
+ | |||
+ | * The //maximum angle// method forces more triangles in sharply curved areas. This way small features that fall below the max distance number will be subdivided a little. You may be able to get away with a little bigger max distance number letting the angle setting take over for the smallest objects/ | ||
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+ | * The //maximum distance edge to surface// method forces Rhino to create a mesh that is no further away from the surface than the specified value, which is in current file units. | ||
+ | * The //minimum initial grid quads// setting makes sure the flatter areas have enough polygons to look smooth. | ||
+ | |||
+ | |||
+ | **The most important setting here is //max distance edge to surface// | ||
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+ | The setting will depend on what you're going to be using your mesh setting for. For general display purposes your value can be a bit bigger (coarser), as you're only visualizing the model on your screen, and less polygons mean faster meshing times and quicker display reaction when tumbling, zooming, etc. On the other hand, if you need to have more accurate meshing on very fine details for a hi-resolution render (or for manufacturing, | ||
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+ | * If you are doing toaster oven sized objects, 0.01mm (.0005 in.) generally works out pretty well. | ||
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+ | * For small highly detailed objects such as watches and jewelry, try something less, maybe .002mm (.00001 in). | ||
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+ | * For big objects like buildings, it can be much larger, maybe 0.1 to 1mm (.005 to .05 in) or more. | ||
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+ | * If you're going to be exporting your object for later processes, or are going to be doing very detailed renderings, you may need to tighten up the settings a bit, depending on where it's going and how precise the process is. For a stereolithography part, .01mm should still be fine for example, but for a good machined part, .001mm-.002mm is probably more appropriate. | ||
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+ | It may seem a bit complicated at first, but after a bit of practice, you will find a few standard settings that work for you in most situations. | ||
+ | |||
+ | ---- | ||
+ | |||
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+ | =====Other meshing problems and possible solutions===== | ||
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+ | Sometimes, you may find that even with the settings guidelines above, you are still not getting good results. | ||
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+ | Some problems may be caused by the mesher' | ||
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+ | ====Things to watch out for:==== | ||
+ | //While these conditions don't always cause problems meshing, they have been known to do so in the past, so it's worthwhile checking if you are having difficulties.// | ||
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+ | * <color darkslateblue> | ||
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+ | * <color darkslateblue> | ||
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+ | * <color darkslateblue> | ||
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+ | * <color darkslateblue> | ||
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+ | * <color darkslateblue> | ||