COMPUTER GRAPHIK – UNIVERSITÄT DES SAARLANDES OpenSG 2003 The OpenRT Application Programming Interface6 OpenRT Low-level graphics interface in the spirit of OpenGLLow-level graphics interface in the spirit of OpenGL –Syntactically similar to OpenGL -Easy-to-use -Aids the porting of applications –Allows to layer scene graph APIs on top –But: Neither simple extension nor subset of OpenGL -Fundamental differences between rasterization and ray tracing Supports high-quality image generationSupports high-quality image generation –Physically-correct lighting simulations –Arbitrary programmable shading –Highly complex scenes possible Development not finalized but already used in practiceDevelopment not finalized but already used in practice –Saarland Universitys Real-Time Ray Tracing system [Wald 01] –SaarCOR hardware ray tracing architecture [Schmittler 02]
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