![]() ![]() The vast majority of 3D models today are built as textured polygonal models, because they are flexible, because computers can render them so quickly. Polygonal modeling – Points in 3D space, called vertices, are connected by line segments to form a polygon mesh.There are three popular ways to represent a model: Polygon representations are not used in all rendering techniques, and in these cases the tessellation step is not included in the transition from abstract representation to rendered scene. squares) are popular as they have proven to be easy to rasterize (the surface described by each triangle is planar, so the projection is always convex). This step is used in polygon-based rendering, where objects are broken down from abstract representations (" primitives") such as spheres, cones etc., to so-called meshes, which are nets of interconnected triangles. The process of transforming representations of objects, such as the middle point coordinate of a sphere and a point on its circumference into a polygon representation of a sphere, is called tessellation. Level sets are a useful representation for deforming surfaces which undergo many topological changes such as fluids. Polygonal meshes (and to a lesser extent subdivision surfaces) are by far the most common representation. In a shell model of a cube, the bottom and top surface of the cube must have a uniform thickness with no holes or cracks in the first and last layer printed. Shell models must be manifold (having no holes or cracks in the shell) to be meaningful as a real object. Differences between them are mostly variations in the way they are created and edited and conventions of use in various fields and differences in types of approximations between the model and reality. Solid and shell modeling can create functionally identical objects. Almost all visual models used in games and film are shell models. the boundary of the object, not its volume (like an infinitesimally thin eggshell). Shell or boundary – These models represent the surface, i.e.Solid models are mostly used for engineering and medical simulations, and are usually built with constructive solid geometry Solid – These models define the volume of the object they represent (like a rock).The Utah teapot is one of the most common models used in 3D graphics education.Īlmost all 3D models can be divided into two categories: dwg/.dxf.Īdd Lumion 3D training to your SketchUp Course.A modern render of the iconic Utah teapot model developed by Martin Newell (1975). Leverage scrapbooks to quickly annotate a document.Utilize strategic render settings based on the view port style raster, vector, or hybrid.Utilize a variety of file types to create comprehensive presentations. ![]() ![]() Modify a SketchUp model and update it’s dynamic link within LayOut.View and navigate a SketchUp model in 3D, and 2D.Import 3D SketchUp models into the 2D LayOut document and set to an architectural scale.Create and manipulate 2D geometry in a 2D drafting environment.Upon completion these topics, you should be able to: You will explore many of the popular features of LayOut by walking through a mock project and creating a 2D document optimized for print and digital presentation. LayOut will ultimately save you time and money by providing a streamlined workflow and eliminating other expensive presentation software. LayOut provides a dynamic link between your 3D models and your 2D presentation,Īllowing you to design up to the very last minute. LayOut 3 is the perfect presentation companion for SketchUp. SketchUp is an extremely powerful 3D modeling tool, yet it has limited presentation capabilities by itself. You will need a basic 3-button scroll wheel mouse to use LayOut efficiently.Demonstrate mouse skills including: double-click, single-click,Ĭlick-and-drag, and right-click (context-click).Rectangle, circle, polygon, parallel, perpendicular, axes, arc, rendering, field Define fundamental geometric and SketchUp drawing terms including: line,.If you are unfamiliar with SketchUp Pro, check out the YouTube video from a user to see what’s possible. LayOut provides you with the strategies and techniques you need to effectively and efficiently present your 3D SketchUp models in digital and print formats. You will learn the process of importing several file types into a LayOut document and organizing information for presentation on standard sheet sizes set to architectural scales. You will also learn to navigate the LayOut 2D environment as well as how to be accurate while drafting within the environment. You will learn the necessary basic, intermediate, and advanced tools to present your 3D SketchUp models in several different 2D formats. SketchUp LayOut is a 2D drafting and presentation tool. ![]()
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