displacemant mapping ohne tessellation hat soviel sinn wie ein fünftes rad am wagen.
denn ohne tesselation gibt es nicht mehr polygone und du kannst deine mit displacement mapping erzeugten höhen unterschiede in der pfeife rauche.
Zitat:
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In reference to Microsoft's proprietary High Level Shader Language, displacement mapping can be interpreted as a kind of "vertex-texture mapping" where the values of the texture map do not alter pixel colors (as is much more common), but instead change the position of vertices. Unlike bump, normal and parallax mapping, all of which can be said to "fake" the behavior of displacement mapping, in this way a genuinely rough surface can be produced from a texture. It has to be used in conjunction with adaptive tessellation techniques (that increases the number of rendered polygons according to current viewing settings) to produce highly detailed meshes.
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Displacement mapping - Wikipedia, the free encyclopedia