Instancing

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A brief overview of gpu instancing.

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OpenGL Instancing Alessandro Rigazzi Data Analysis and Visualization Group May 27, 2008

Instancing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

New Call ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What is different and what is not ,[object Object],[object Object],[object Object]

Performances ,[object Object],spheres triangles fps (full) fps (wireframe) 16 125k 399 120 32 250k 284 63.1 64 500k 167 32.5 128 1M 91.6 16.7 256 2.1M 48.2 8.4 512 4.2M 24.2 4.2 1024 8.4M 12 2.1 2048 16.8M 5.8 1

Extensions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Code snippet: C++ initialization ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Code snippet: C++ instanced draw call ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Code snippet: GLSL shaders ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Instancing

1. OpenGL Instancing Alessandro Rigazzi Data Analysis and Visualization Group May 27, 2008

5. Test application

10.

Instancing

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