1 / 12

Basic Rendering Techniques

Basic Rendering Techniques. Guilford County SciVis V106.03. Rendering and Shading Techniques. Rendering produces a finished image . The closer the rendering is to create a natural scene , the more complex it is, and the longer it takes to render the scene.

bishops
Télécharger la présentation

Basic Rendering Techniques

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Basic Rendering Techniques Guilford County SciVis V106.03

  2. Rendering and Shading Techniques • Rendering produces a finished image. • The closer the rendering is to create a natural scene, the more complex it is, and the longer it takes to render the scene. • Rendering the scene to a file may include such things as the background, output size, compression, file type, and output path. • Rendering previews are small and quick to check your scene prior to doing a full render.

  3. Texture Mapping • Surfaces may have single colors or they may have multiple color patterns, which are commonly referred to as textures. • For example: wood has a characteristic appearance because of its varying color patterns. • Even materials like metals which seen to be one color, when closely examined, reveal varying shades and colors mixed in random patterns.

  4. Texture Mapping • The term texture in 3D computer graphics refers to image patterns rather than the “feel” of materials. • The most basic type of texture is a 2D picture (often saved as a .jpeg, .bmp, or .tga file), which is applied to an object.

  5. Texture Mapping • Opacity maps control whether a material is opaque, transparent, or translucent. • Adding textures to the object is an extremely important part of making objects look realistic.

  6. Texture Mapping • Textures may be acquired in different ways. • Most 3D programs come with libraries where you can select various materials and patterns.

  7. UV Space • UV mapping is a way of trying to solve the distortion problems that occur when applying image maps (textures) to complex surfaces. • Many 3D graphic programs allow texture image scaling and placement controls.

  8. UV Space • U represents the horizontal component of an image. It corresponds to the X axis dimension in 2D coordinate space. • V represents the vertical component of an image. It corresponds to the Y axis dimension in 2D coordinate space. • W represents the z axis or depth in 3D coordinate space.

  9. UV Space • Tilingallows pattern to be repeated, much like tiles on a floor.

  10. Bump Mapping • Bump maps simulate the roughness of surfaces even though the surfaces are perfectly flat. • Bump maps make an object appear to have a bumpy or irregular surface. This is possible because of higher areas are light and lower areas are dark.

  11. Lighting • 3D programs have some type of default lighting, which can be changed to create a more realistic appearance.

  12. The End

More Related