Gouraud shading

It is based on the Gouraud shading method with an additional twist.

You will notice that the ball with Gouraud shading appears much smoother than the flat shaded one.

This is known as Gouraud shading.

The most serious problem with Gouraud shading occurs when specular highlights are found in the middle of a large polygon.

Gouraud shading is more involved.

Graphics techniques used include gouraud shading.

Perspective correction, flat and Gouraud shading.

Texture mapping and Gouraud shading is also handled by the VDP1.

Gouraud shading, a shading algorithm invented by him.

The Impression could not perform hardware texture mapping, for example, requiring Gouraud shading or lower-quality techniques.

Gouraud shading is more CPU intensive and can become a problem when rendering real time environments with many polygons.

In comparison to Phong shading, Gouraud shading's strength and weakness lies in its interpolation.

Many libraries and cards provide color gradients, which are handy for the generation of smoothly-varying backgrounds, shadow effects, etc. (See also Gouraud shading).

Vertex normals are used in Gouraud shading, Phong shading and other lighting models.

Its 3D graphics-engine used both gouraud shading and texture-mapping on both aircraft-models and terrain, an impressive feat at the time.

Gouraud shading is considered superior to flat shading, which requires significantly less processing than Phong shading, but usually results in a faceted look.

The result is a continuous mesh, however due to the nature of the z-buffer and certain lighting algorithms such as gouraud shading, visual artifacts can often be detected.

Graphics hardware effects include gouraud shading, z-buffering, spatial anti-aliasing, per-pixel translucency sorting (also known as order independent translucency) and bump mapping.

Phong shading is more computationally expensive than Gouraud shading since the reflection model must be computed at each pixel instead of at each vertex.

Gouraud shading, named after Henri Gouraud, is an interpolation method used in computer graphics to produce continuous shading of surfaces represented by polygon meshes.

Gouraud shading: Invented by H. Gouraud in 1971, a fast and resource-conscious vertex shading technique used to simulate smoothly shaded surfaces.

It supports hierarchical object transformation with features such as position, rotation and scaling, rendering of bitmap textures, and real-time lighting using Phong shading or Gouraud shading.

However, like many other 2D/3D chips at the time, the feature set of perspective-correct texture mapping, bilinear filtering, single-pass lighting, gouraud shading, and alpha blending, was both slow and incomplete.

Unlike Gouraud shading, which interpolates colors across polygons, in Phong shading a normal vector is linearly interpolated across the surface of the polygon from the polygon's vertex normals.

In this edition, X-Wing and TIE Fighter were retrofitted with the X-Wing vs. TIE Fighter graphics engine, which uses texture mapping instead of Gouraud shading.