Tools To Get Great Graphics Performance

Transcription

1 PowerVR SDK Overview Tools To Get Great Graphics Performance August

2 Imagination Technologies PowerVR Graphics The Embedded Graphics IP Experts Imagination Technologies - multi-media IP market leader 20+ years history in graphics & multimedia - strong patent portfolio Most comprehensive embedded graphics IP roadmap Target market of more than 800 million PowerVR Graphics enabled devices 50% Market share across all embedded GPUs and near 80% market share for GPU IP 2 Imagination Technologies IMG Presentation SIGGRAPH 2012

3 What is the PowerVR Insider SDK? Enabling Development Asset Optimization Geometry; Textures Coding Source code, shader editors, emulation environment Deployment Abstraction layer; example projects Optimization Performance analysis; API tracing PVRGeoPOD & Collada2POD PVRTexTool & PVRTexLib PVRTrace PVRShaman & PVRUniSCoEditor PVRTune & PVRScope PVRVFrame 3 Imagination Technologies IMG Presentation SIGGRAPH 2012

4 What is the PowerVR Insider SDK? Source Code Example Techniques Step by step guide basics to advanced techniques Same project structure PVRShell abstraction layer PVRTools helper library General graphics knowledge PowerVR specific optimizations 4 Imagination Technologies IMG Presentation SIGGRAPH 2012

5 PVRGeoPOD & Collada2POD Geometry Export and Optimisation PVRGeoPOD POD exporter plug-in for 3D Studio Max, Maya and Blender Collada2POD Provides conversion from the Khronos Collada interchange format to POD GUI and command line versions Windows, Linux and OSX 5 Imagination Technologies IMG Presentation SIGGRAPH 2012

6 PVRTexTool Texture Export and Compression Processes and compresses textures All OpenGL ES (1.x, 2.0), DirectX (9, 10) Normal map generation, colour bleeding, border addition, high quality scaling algorithms and sky box optimization Support for PVRTC, PVRTC2 GUI Application Command Line Utility Library for Toolchain Integration Application Plug-ins Adobe Photoshop Autodesk 3DSMax Autodesk Maya 6 Imagination Technologies IMG Presentation SIGGRAPH 2012

7 PVRTC & PVRTC2 Texture Compression What is PVRTC? High quality, high ratio texture compression format, designed for PowerVR hardware PVRTC and PVRTC2 both support: 4 bits per pixel RGBA; 8x saving 2 bits per pixel RGBA; 16x saving PVRTC2 better image quality, pre-multiplied alpha, NPOT sizes, sub-texturing Original 32bpp PVRTC 4bpp DXT/S3TC 4bpp PVRTC 2bpp 7 Imagination Technologies IMG Presentation SIGGRAPH 2012

8 PVRShaman WYSIWYG Prototyping Environment Integrated visual shader development environment See visual results of changes Instant feedback on shader cost Prototype entire scenes & characters POD models or import Collada files Material editing Integrated PVRShaderEditor Integrated Compiler DirectX, OpenGL and OpenGL ES (1.1 & 2.0) 8 Imagination Technologies IMG Presentation SIGGRAPH 2012

9 PVRShaderEditor (PVRUniSCoEditor) Shader Editor and Compiler PVRUniSCoEditor Shader Editor Integrated shader performance information Error reporting PVRUniSCo Offline command-line compiler Profile your shaders Updated compilers SGX 53x SGX 540 SGX Imagination Technologies IMG Presentation SIGGRAPH 2012

10 PVRVFrame PC Emulation PowerVR OpenGL ES emulator OpenGL ES (1.1 & 2.0) emulation on Windows, Linux and OSX PVRVFrame features Develop and debug without PowerVR hardware Supports all MBX and SGX extensions Choose a profile for a specific core 10 Imagination Technologies IMG Presentation SIGGRAPH 2012

11 PVRTrace API Call Tracing Tool Powerful debugging tool Scene recording All API calls EGL OpenGL ES 1.1 OpenGL ES 2.0 GUI Analysis Function calls Data passed Textures Shaders Render State 11 Imagination Technologies IMG Presentation SIGGRAPH 2012

12 PVRTrace Overview 12 Imagination Technologies IMG Presentation SIGGRAPH 2012

13 PVRTrace Analysis Interface Frame Summary & Function Counts Visual Analysis Frame Scrubber Function Calls & Filters Render States, Textures, Shaders Data Viewer Frame Selector 13 Imagination Technologies IMG Presentation SIGGRAPH 2012

14 PVRTune Real-time tool for analysing application performance on SGX Details how SGX hardware modules are working when running graphics applications Displays accurate information from on-chip counters Negligible graphics performance overhead Enabled by default in many already shipping devices Cross-Platform Client: Windows, OSX, Linux Server: Android, Linux, Windows and more 14 Imagination Technologies IMG Presentation SIGGRAPH 2012

15 PVRTune PowerVR GPU Specific Terminology Basic hardware knowledge to understand performance See SGX Architecture Guide for Developers for full details on TA 15 Imagination Technologies IMG Presentation SIGGRAPH D

16 PVRTune Analysis Interface Hardware Counter Groups Hardware Performance Counters 3D load visualisation TA load visualisation Graph views Connection Status 16 Imagination Technologies IMG Presentation SIGGRAPH 2012

17 CPU Bound Application Case Study CPU may be at or near 100% Gaps between TA and 3D tasks 17 Imagination Technologies IMG Presentation SIGGRAPH 2012

18 Vertex Bound Application Case Study USSE load: vertex and TA load may be high Gaps between 3D tasks No gaps between TA tasks 18 Imagination Technologies IMG Presentation SIGGRAPH 2012

19 Pixel/Fragment Bound Application Case Study USSE load: pixel and USSE clock cycles per pixel may be high No gaps between 3D tasks Large gaps between TA tasks 19 Imagination Technologies IMG Presentation SIGGRAPH 2012

20 V-Sync Limited Application Case Study TA & 3D serialised Frame rate hovering around a fixed number SGX sleeping unpredictably 20 Imagination Technologies IMG Presentation SIGGRAPH 2012

21 PVRScope Library On-device GPU Performance Counters In your own applications: Access SGX hardware counters Pass custom counters to PVRTune Receive data from PVRTune 21 Imagination Technologies IMG Presentation SIGGRAPH 2012

22 PVRTune & PVRScope Custom Markers Custom Marker 22 Imagination Technologies IMG Presentation SIGGRAPH 2012

23 PVRTune & PVRScope Remote Editing 23 Imagination Technologies IMG Presentation SIGGRAPH 2012

24 What's Next? PowerVR Rogue & SDK 3.0! August

25 PowerVR Rogue Architecture New Hardware = More Features, More Performance PowerVR Rogue Cores in Silicon Now Customer product announcements & launches to follow in 2013 Full support for just announced Khronos OpenGL ES 3.0 API (*) Instancing, Multiple Render Targets (MRTs), Transform Feedback, Occlusion Culling, etc. Focus on Power & Performance Efficiency New Gen. Tile Based Deferred Shading, Lossless Compression, Scalable Compute Clusters, (*) Product is based on a published Khronos Specification, and is expected to pass the Khronos Conformance Testing Process. Curre nt conformance status can be found at 25 Imagination Technologies IMG Presentation SIGGRAPH 2012

26 PowerVR SDK v3.0 New Hardware = New SDK with matching feature set PowerVR SDK v3.0 with full Rogue Architecture Support Initial version launching at the end of summer 2012 previews here at SIGGRAPH! PVRVFrame Conformant ES1.1 and ES2.0 (*) Support for OpenGL ES 3.0 (*) Including Shader Validation PVRTrace Android APK for easy usage Auto-configuration PVRTexTool OpenGL ES 3.0 and DirectX 11.1 Formats Updated Compilers Rogue Support & Optimised S5/5XT (*) Product is based on a published Khronos Specification, and is expected to pass the Khronos Conformance Testing Process. Current conformance status can be found at 26 Imagination Technologies IMG Presentation SIGGRAPH 2012

27 PowerVR SDK - meeting YOUR requirements Want to know more? Visit us at Booth 522 Check out our online resources Get in touch directly devtech@imgtec.com Send us your feedback! 27 Imagination Technologies IMG Presentation SIGGRAPH 2012

28 PowerVR SDK Overview Tools To Get Great Graphics Performance August