kwnetzwelt / visual-artifacts

A collection of imagery on realtime artifacts

Visual artifacts of realtime rendering systems

This is a collection of effects resulting by the design of realtime rendering systems and appropriate solutions to these issues.

Aliasing - Antialiasing

Problem: Aliasing of polygonal edges

Solution: Subpixel Morphologic Anti-Aliasing

Minification/Moire and much more - Mipmaps

Problem: Variing texture sharpness with magnification/minification as well as moire effects

Solution: Mipmaps. Generate multiple versions with different resolution of one texture

Pixelation of Textures - Texture filtering

Problem: Magnified Textures will generate a pixellated look.

Solution: Filtering textures will smooth out pixelation.

Perspective distortion - 2D Projection/ stereoscopic project with lens distortion

Problem: Objects further aways from the viewer appear smaller than those closer Solution: Projects these objects from 3D space to a 2D Image using a projection matrix http://www.songho.ca/opengl/gl_projectionmatrix.html. Solution: For VR: Compensate for lens distortion with fresnel lenses in VR Headsets as well. Display stereoscopic split-view.