Clase 27 - GPU - Graphics Processing Unit GPU Arquitectura...

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21-11-2010 1 Graphics Processing Unit: GPU Arquitectura de Computadores 2010-2
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21-11-2010 2 La tarjeta gráfica guarda en un framebuffer la información a desplegar en un rasterdisplay
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21-11-2010 3 Un chip de aceleración gráfica 2D , transforma primitivas de dibujo en píxeles
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21-11-2010 4 La computación gráfica 3D consiste en transformar un modelo matemático de un objeto 3D en una representación 2D La transformación de un objeto 3D a su representación 2D puede descomponerse en varias etapas La secuencia de estas etapas se denomina el graphics pipeline
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21-11-2010 5
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21-11-2010 6 La Graphics Processing Unit (GPU) está diseñada para ejecutar las etapas del graphics pipeline en hardware La GPU esta optimizada para gráfica 3D interactiva y en tiempo real 60 fps = 1 frame en 1/60 segundo 1 frame en 3 horas
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21-11-2010 7 El procesamiento gráfico 3D se caracteriza por ser extremadamente paralelizable Las tareas del graphics pipeline pueden paralelizarse sin dependencia de datos
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21-11-2010 8 Las tareas del graphics pipeline pueden paralelizarse sin dependencia de datos Corresponde a un modelo tipo streaming En la primera generación de GPUs , cada etapa del pipeline se mapea a un hardware de función fija
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21-11-2010 9 OpenGL y Direct3D son las APIs de programación usadas para entregarle comandos a la GPU glClear (GL_COLOR_BUFFER_BIT); glColor3f (1.0, 1.0, 1.0);
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