GPU Accelerated Rendering In Adobe Illustrator CC

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Harriet Benson
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GPU Accelerated Rendering In Adbe Illustratr CC Vineet Batra Senir

2 Intrductin Adbe s very first applicatin when released ver 27 years ag Industry-standard fr vectr graphics Sphisticated graphics capabilities fr printing, cmpsiting and phtrealistic shading Rich feature set including text, images, layers, transparency, blending mdes and filters Uses Adbe PDF standard fr its underlying rendering capabilities 2014 Adbe Systems Incrprated. All Rights Reserved. 2

Rich Feature Set Beautiful Illustratins 2014

Rendering : CPU Pipeline Rasterize Paint Cmpsite Blit Generate path cverage Super-sampling Anti-aliasing Overscan Cmpute clr values Cmpute alpha values Cmbine with cverage Based

8 Rendering : CPU Pipeline Rasterize Paint Cmpsite Blit Generate path cverage Super-sampling Anti-aliasing Overscan Cmpute clr values Cmpute alpha values Cmbine with cverage Based n Prter-Duff image cmpsitin mdel Additinal transparency attributes and blend mdes The entire pipeline is reslutin dependent! 2014 Adbe Systems Incrprated. All Rights Reserved. 8

CPU Rendering Perfrmance Intel(R) Xen(R) CPU E3-1240 V2 @3.

Objects ~2K Gradients Perfrmance Pixels Time (ms) 1680 X 1050

9 CPU Rendering Perfrmance Intel(R) Xen(R) CPU E cres, 8 GB RAM Cmplexity 11K+ Paths 2K+ Transparent Objects ~2K Gradients Perfrmance Pixels Time (ms) 1680 X X FPS ~6 ~ Adbe Systems Incrprated. All Rights Reserved.

CPU Rendering Perfrmance (cntd.) Intel(R) Xen(R) CPU E3-1240 V2 @3.

10 CPU Rendering Perfrmance (cntd.) Intel(R) Xen(R) CPU E cres, 8 GB RAM ~130K Paths Cmplexity ~66K Transparent Objects Perfrmance Pixels Time (ms) 1680 X X FPS ~1 ~ Adbe Systems Incrprated. All Rights Reserved.

11 Challenges in Vectr Graphics Rendering Increasing screen reslutin CPUs nt able t keep up with fill rate HD, Retina, 4K, Interactive user experience Illustratr users want actual appearance while drawing Increased expectatins arund respnsiveness due t prliferatin f tuch devices Increased cmplexity f artwrk based n natural drawing paradigms Changing technlgical landscape Increasing gap between pixel density and CPU cmpute pwer GPUs are mainstream and making full use f GPUs is essential fr any mdern cmputing platfrm Current graphics APIs n GPU are nt ptimal fr cmpsiting vectr graphics 2014 Adbe Systems Incrprated. All Rights Reserved. 11

12 Mving Rendering t GPU Cnsideratins and Cnstraints GPU vendrs have different cmpliance with OpenGL standard N native supprt fr cubic Bezier curves Reslutin dependent tessellatin N native supprt fr Adbe PDF graphics mdel Transparency cmpsiting Blend Mdes Nn-RGB clr spaces Anti-aliasing quality 2014 Adbe Systems Incrprated. All Rights Reserved. 12

13 Using NVIDIA GPUs NV Path Rendering Intrinsic supprt fr cubic Bezier curves Understands Adbe PDF path rendering attributes (e.g. dash, cap, etc.) Supprts SVG path frmats as well Reslutin-independent 2D graphics Allws use f prgrammable shaders t generate cmplex appearance API prvides high level f abstractin 2014 Adbe Systems Incrprated. All Rights Reserved. 13

14 Using NV Path Rendering Creatin & Deletin Fill Strke Dash Path Parameters Strke Width Cap & Jin Miter glgenpathsnv glpathcmmandsnv gldeletepathsnv glstencilfillpathnv glcverfillpathnv glstencilstrkepathnv glcverstrkepathnv glpathdasharraynv glpathparameterinv GL_PATH_STROKE_WIDTH_NV GL_PATH_END_CAPS_NV GL_PATH_JOIN_STYLE_NV GL_PATH_MITER_LIMIT_NV 2014 Adbe Systems Incrprated. All Rights Reserved. 14

15 Using NVIDIA GPUs NV Blend Equatin Advanced Prvides native supprt fr Adbe PDF Blend mdes Faster perfrmance than shader based blending Implemented in hardware in upcming cards (Maxwell and later) Included in Khrns standard specificatin 2014 Adbe Systems Incrprated. All Rights Reserved. 15

17 GPU Rendering Perfrmance Intel(R) Xen(R) CPU E vs NVIDIA GeFrce GTX 780 Ti Cmplexity ~11K Paths ~2K Transparent Objects ~2K Gradients Perfrmance Pixels 1680 X X 2160 CPU 178 ms 608 ms 6 fps 1.5 fps GPU 38 ms 55 ms 26 fps 18 fps Gain ~4.7x ~11x 2014 Adbe Systems Incrprated. All Rights Reserved.

18 GPU Rendering Perfrmance Intel(R) Xen(R) CPU E vs NVIDIA GeFrce GTX 780 Ti ~130K Paths Cmplexity ~66K Transparent Objects Perfrmance Pixels 1680 X X 2160 CPU GPU 928 ms 2073 ms ~1 fps ~0.5 fps 131 ms 170 ms 8 fps 6 fps Gain ~7x ~12x 2014 Adbe Systems Incrprated. All Rights Reserved.

GPU Rendering Perfrmance Intel(R) Xen(R) CPU E3-1240 vs NVIDIA GeFrce GTX 780 Ti ~130K Paths Cmplexity ~66K Transparent Objects Perfrmance Pixels

20 GPU Rendering Perfrmance Intel(R) Xen(R) CPU E vs NVIDIA GeFrce GTX 780 Ti ~130K Paths Cmplexity ~66K Transparent Objects Perfrmance Pixels 1680 X X 2160 CPU GPU 928 ms 2073 ms ~1 fps ~0.5 fps 131 ms 170 ms 8 fps 6 fps Gain ~7x ~12x 2014 Adbe Systems Incrprated. All Rights Reserved.

21 Remaining Challenges Text N supprt fr rich typgraphic features Unicde, Open Type fnts etc. N Fnt Hinting, require bitmaps fr quality Nn-RGB clr spaces CMYK Spt clrs Clr Prfiles Thin Strkes GPUs struggle t render thin strkes Transparency grups Islated, Nn-islated and knckut grups Requires lt f texture cpying (slw) 2014 Adbe Systems Incrprated. All Rights Reserved. 21

23 UPCOMING GTC EXPRESS WEBINARS Wednesday, September 17 Wednesday, September 24 Wednesday, Octber 15 CUDA 6.5 Perfrmance Overview Jnathan Chen, NVIDIA Cnvlutinal Netwrks: A Unified Machine Learning Apprach t Cmputer Perceptin Yann LeCun, Facebk & NYU Essential CUDA Optimizatin Techniques Chris Masn, Acceleware Register at

24 GTC 2015 CALL FOR SUBMISSIONS Clses Octber 6 Submit prpsals fr: Talks Psters Fr mre infrmatin and t submit a prpsal g t:

Because this underlying hardware is dedicated to processing graphics commands, OpenGL drawing is typically very fast.

Because this underlying hardware is dedicated to processing graphics commands, OpenGL drawing is typically very fast. The Open Graphics Library (OpenGL) is used fr visualizing 2D and 3D data. It is a multipurpse pen-standard graphics library that supprts applicatins fr 2D and 3D digital cntent creatin, mechanical and