FineContrastTutorial

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FineContrastTutorial

Illustrates use of floating point textures in combination with
source-weighted additive alpha blending to create linear superpositions
of image patches, in this case of two superimposed gratings.

Needs hardware with support for imaging pipeline (GLSL shaders and
floating point framebuffers). Should work well on ATI Radeon X1000 and
later, Geforce 6000 and later.