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  2. Astarion - Wikipedia

    en.wikipedia.org/wiki/Astarion

    As a rogue, Astarion wears light armor and is proficient with several bladed weapons, including daggers, rapiers and longswords, as well as longbows and crossbows.. Astarion is skilled in acrobatics, deception, perception, performance, persuasion, sleight of hand, and stealth, making him well-suited to several tasks, including picking locks and disarming traps, which are invaluable early on in ...

  3. List of DC Universe locations - Wikipedia

    en.wikipedia.org/wiki/List_of_DC_Universe_locations

    The location reappeared decades later in Final Crisis: Superman Beyond, also by Morrison, as the world on the edge of the multiverse past the Graveyard Universe of Earth-51. [117] This "comic book limbo" is metafictional , based on the notion that any character who has not been published recently can be said to reside in "comic book limbo".

  4. Celestial sphere - Wikipedia

    en.wikipedia.org/wiki/Celestial_sphere

    Such globes map the constellations on the outside of a sphere, resulting in a mirror image of the constellations as seen from Earth. The oldest surviving example of such an artifact is the globe of the Farnese Atlas sculpture, a 2nd-century copy of an older ( Hellenistic period , ca. 120 BCE) work.

  5. Sphere mapping - Wikipedia

    en.wikipedia.org/wiki/Sphere_mapping

    The map has been created as above, looking at the sphere along the z-axis. The texture coordinate of the center of the map is (0,0), and the sphere's image has radius 1. We are rendering an image in the same exact situation as the sphere, but the sphere has been replaced with a reflective object.

  6. Gnomonic projection - Wikipedia

    en.wikipedia.org/wiki/Gnomonic_projection

    Gnomonic projection of a portion of the north hemisphere centered on the geographic North Pole The gnomonic projection with Tissot's indicatrix of deformation. A gnomonic projection, also known as a central projection or rectilinear projection, is a perspective projection of a sphere, with center of projection at the sphere's center, onto any plane not passing through the center, most commonly ...

  7. Spherical harmonic lighting - Wikipedia

    en.wikipedia.org/wiki/Spherical_harmonic_lighting

    Spherical harmonic (SH) lighting is a family of real-time rendering techniques that can produce highly realistic shading and shadowing with comparatively little overhead. . All SH lighting techniques involve replacing parts of standard lighting equations with spherical functions that have been projected into frequency space using the spherical harmonics as a b

  8. Normal mapping - Wikipedia

    en.wikipedia.org/wiki/Normal_mapping

    A texture map (left). The corresponding normal map in tangent space (center). The normal map applied to a sphere in object space (right). Normal map reuse is made possible by encoding maps in tangent space. The tangent space is a vector space, which is tangent to the model's surface. The coordinate system varies smoothly (based on the ...

  9. Spherical coordinate system - Wikipedia

    en.wikipedia.org/wiki/Spherical_coordinate_system

    For example, one sphere that is described in Cartesian coordinates with the equation x 2 + y 2 + z 2 = c 2 can be described in spherical coordinates by the simple equation r = c. (In this system—shown here in the mathematics convention—the sphere is adapted as a unit sphere, where the radius is set to unity and then can generally be ignored ...