Siggraph 2004 RenderMonkeyTM: An Effective Environment for Shader Prototyping and Development Natalya Tatarchuk ATI Research, Inc. Siggraph 2004 Overview • What is RenderMonkey? • Shader development workflow • Integration into existing pipelines • Conclusion Siggraph 2004 It ’s Not A Monkey, It ’s Not a It’s It’s Man: It ’s RenderMonkey It’s • Shader development tool – Abstracts GPU programming • Manages the shaders and all associated visual resources in a single environment • Rapid prototyping and debugging of new graphics algorithms • Artist-friendly environment – Fosters collaboration between effect programmers and artists Siggraph 2004 Uses Standard Graphics APIs Shader production on any hardware with shader capabilities for standard graphics APIs • OpenGL 1.5 with GLSL support • DirectX 9.0c with HLSL and assembly support – Includes support for all shader models up to SM 3.0 Siggraph 2004 Abstracting GPU Programming Why hide the truth? • Shaders are more than just stand-alone programs • Setting all related state can be complex RenderMonkey simplifies that task • Abstracts GPU programming setup via user interface and database manipulation • Now you can focus on shader and algorithm development Siggraph 2004 9 Months Since Version 1.0 More than 100,000 downloads • Adopted by developer community as a powerful tool for shader prototyping and development – Prototyping new algorithms – Developing production shaders – Used Beta SDK for custom exporter / loader plug-ins Version 1.5 released at Siggraph 2004 • Many new features: making shader production more streamlined Siggraph 2004 Visual Effects Made Easy. Really. • Setting up draw calls, texture surfaces, primitives, multipass rendering, offscreen buffers – as easy as a few clicks – You don’t even need to be a programmer to do it • Full control over the rendering setup – A general shader development environment – Not just one preset way to create your effects • All effect’s data is stored in an extensible XML file – Includes a published DTD Siggraph 2004 Managing Effect Setup • Manipulate effect database via workspace tree view • Specify texture and model repositories – Allows stream-lined creation of texture and geometry objects • No hunting for data details: informative tooltips tell it all • A monkey with a long memory – Application remembers user preferences for editors and window positioning – Customizable application settings Siggraph 2004 Share Your Knowledge Effect package import / export functionality • Mechanism for automatic packaging of effects with geometry models and textures in a single zip file • It can then be directly imported back into the application • Zip, ship and view! Facilitates sharing of algorithms in the graphics community Siggraph 2004 Focus on Shader Development Custom shader editor for each shading language • User-customizable syntax highlighting • Customizable text editing settings • Integrated compile error reporting Siggraph 2004 State -of-the-art DirectX State-of-the-art Rendering • Support for multiple render target output • Multipass rendering • Customizable buffer formats, multisampling type and variety of other settings • HLSL include file support – Ships with a set of HLSL math and rendering functions • Export to Microsoft .FX Siggraph 2004 New: OpenGL with GLSL Support RenderMonkey is the first shader development IDE supporting GLSL – Multipass rendering – Render to texture passes – Can use the same resources as DirectX (textures, models, etc.) Cross-vendor implementation uses efficient OpenGL techniques – Vertex buffer objects when available, vertex arrays otherwise – Automatic mip map generation when available Siggraph 2004 Control Simulation with Engine -Driven Parameters Engine-Driven Can use engine parameters to access more state within shaders – Transformation matrices – Time parameterization, random values ~ 80 total – And more Customizable parameter names linked to specific semantics – Semantics match Microsoft .FX annotations Siggraph 2004 Access User Input from Within Shaders User input via mouse is directly accessible from shaders – Use engine mouse parameters: mouse buttons state and coordinates Examples: – Fluid flow injection – NPR painting program – Object selection Siggraph 2004 Debugging Shaders and Performance Tuning • Interactive preview with full rendering resource error reporting – Minimize user error in setup – Quick iteration on effect’s algorithm, look and feel • Frame statistics provide performance hints • DirectX optimizations – Built-in HLSL disassembler – Integrated ALU and texture op counter Siggraph 2004 Know What the Algorithm is Actually Doing Output a shader quantity directly to the preview – Requires understanding of how quantities map to visual results View pass build-up and pass interaction for multipass effects – Breaks down effect’s creation into distinct steps – Allows easy comprehension of the algorithm – Aids in quick debugging when things go awry Siggraph 2004 Generate Look -Up Tables and Look-Up Geometric Objects Support for procedural texture and geometry object creation – Via existing generator plug-ins • Procedural texture via HLSL functions (2D, 3D & cube maps) • Basic geometry shapes and auto edge quad generation – Create your own data of any type Preserve your data: anything generated can be saved to file by RenderMonkey Siggraph 2004 Give Power to the Artists! Artist’s involvement is crucial for shader effects – Expose the power of programmable shaders to the artists without slowing them down Let shader developers collaborate with artists – Algorithm developer can select which parameters are artisteditable – Artists can view only relevant shader parameters via Art tab or in a single Artist Interface Siggraph 2004 Artist Interface • Provides familiar look and feel of DCC widgets to artists working on shader effect creation • Tweak parameters and instantly see changes – Quicker iteration to achieve the best visual result – Allows exploration of parameters influence on the effect Siggraph 2004 What ’s in My Texture? What’s • All texture surfaces can be previewed – Preview thumbnails and preview full surfaces including the contents of the alpha channel – Includes all renderable offscreen buffers Siggraph 2004 What ’s in My Texture? What’s • All texture surfaces can be previewed • Dynamic preview of offscreen buffer contents – Separate preview of all renderable surfaces – Dynamically updated as effect is being rendered – View contents of a shadow map or pressure buffer Siggraph 2004 Texture and Model Resource Management is Simple • Specify user resource repositories for textures and models Siggraph 2004 Texture and Model Resource Management is Simple • Specify user resource repositories for textures and models • Connect rendering resources with external editors – Specify desired program for texture and model editing – Clicking on a texture thumbnail or geometry object launches an external editor Siggraph 2004 Texture and Model Resource Management is Simple • Specify user resource repositories for textures and models • Connect rendering resources with external editors • Automatically update rendering resources as they are modified outside of RenderMonkey – The application auto-rebuilds geometry objects and texture surfaces whenever files are updated on disk Siggraph 2004 Integrating into Existing Pipelines • Create custom components using our SDK (ships with version 1.5) • Our entire application was developed using this plug-in architecture – Plug-in architecture allows solving problems not originally anticipated – Provides a convenient mechanism for us to create and distribute new tools using this framework – Truly extensible architecture Siggraph 2004 Variety of Possible Custom Components • Exporters / Importers • Data generators – Ex: Procedural texture / geometry generation • Texture / Geometry object loaders • Data editor plug-ins: create your own custom widgets • RenderMonkey ships with a set of convenient libraries – Effect database management – Efficient STL-like library – Math, graphics and UI widgets libraries Siggraph 2004 SDK APIs and Compatibility • Written in pure C++ on Windows platform • Supports development on Visual Studio 6.0 and Visual Studio 7.1 .NET 2003 • Create plug-ins using either Win32 or MFC • Supports both DirectX and OpenGL Siggraph 2004 Conclusion RenderMonkey is a powerful development environment for shader-based effects • Designed for rapid effect prototyping • Minimal state setup overhead • Artist-friendly • Extensible framework allows custom component creation • Adopted by the industry Siggraph 2004 Acknowledgements • To the entire RenderMonkey team for their hard work and dedication – Ben Mistal – Toshiaki Tsuji – Bill Licea-Kane • To 3D Application Research Group for inspiration in all that is graphics • To 3DLabs, Inc. for contributions to OpenGL rendering pipeline Siggraph 2004 Questions? 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