Inkscape is an open-source drawing application. In addition to Blender, we are using Inkscape to create our example object. Button (3), under “Geometry,” opens the “Extrude” menu to set the thickness.Button (2) is also a setting item for “Shape” and indicates whether to fill the area enclosed by the curve in “Fill Mode.”.The 2D setting can also be used to add thickness. Use 2D to place the curves on a flat space use 3D is if you want the curves to be drawn solidly in 3D space. Button (1) is in the “Shape” settings and allows you to choose whether the curves will be flat or solid.The curve object tool contains many options, but the one we are using is largely the one shown in the numbered steps above and described below: We used Bézier curves for this project, but we also explain other formats for reference. Many operations supported by Blender are not supported in the curve state, so mesh transformations may be required to perform certain tasks.īelow, we explore the types of curves available in Blender.Merging multiple shapes, while relatively easy to accomplish with meshes, is rather difficult with curves.
Some of the drawbacks of using curves include: This means that you can use a higher precision while working (to reduce file size, etc.) and then convert to a rougher precision before outputting. The accuracy of the deliverables can be set at output.With meshes, the number of faces are finite and must be large for high accuracy, and the load can be very high. Curves can represent smooth lines efficiently, continuously, and with high accuracy.Using curves offers the following advantages: For something that is represented by a curve, however, this subdivision is not necessary. If you want to display something smooth with a mesh, it will need to be subdivided into more surfaces. You can see that the corners, as a surface, do not stand out. A curve, however, is treated as a line drawn and expressed as a mathematical formula, having the advantage of infinite resolution. For example, a cube on the screen is divided by vertices. Of course, all geometry displayed on the screen in 3D graphics is based on mathematical calculations, but “continuous” is an important attribute of curves. In a nutshell, curves in 3D graphics are continuous lines that are expressed based on mathematical equations. 4 Mesh Transformation of Curves in Blender.1.1 Types of Curves Available in Blender.
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