Question: Consider the SGI hardware diagram shown in the notes. There are seven processors in a pipeline architecture just before the pixel bus. Forgetting the conversion

Consider the SGI hardware diagram shown in the notes. There are seven processors in a pipeline architecture just before the pixel bus. Forgetting the conversion to integer processor, which of the six remaining processors would certainly be bypassed if we were rendering a curved surface using bi-cubic patches? Explain.

Primitives from CPU substem Geometry ene . Geometry T Geometry engine Geometry engine Geometry ete A] ( Geometric transformation Lighting Clipping PersRiv?? division Conversion to intecer by Aril D - - - - - ??? ) Px SC Polygon R Edge processor Scan conversion uyt 11. Span processor - ? E image 1 Ma TRAL Pastor subsystem VRAM |VRAH VRAM | VAH ? - Multimode graphics processor Multimode ragi processor Multimodo graphics processor Multimode graphics processor Multimodo graphics processor Lookup table Lookup table Lookup table Lookup 19 Lookup bl? ?? Parallel pixels in , High-sp4 analog AGB Multiplexer and DACs Monitor Fig, 18.19 Silicon Graphics GTX system architecture (based on [AKEL88]). Primitives from CPU substem Geometry ene . Geometry T Geometry engine Geometry engine Geometry ete A] ( Geometric transformation Lighting Clipping PersRiv?? division Conversion to intecer by Aril D - - - - - ??? ) Px SC Polygon R Edge processor Scan conversion uyt 11. Span processor - ? E image 1 Ma TRAL Pastor subsystem VRAM |VRAH VRAM | VAH ? - Multimode graphics processor Multimode ragi processor Multimodo graphics processor Multimode graphics processor Multimodo graphics processor Lookup table Lookup table Lookup table Lookup 19 Lookup bl? ?? Parallel pixels in , High-sp4 analog AGB Multiplexer and DACs Monitor Fig, 18.19 Silicon Graphics GTX system architecture (based on [AKEL88])

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