Advanced Rendering Techniques
|
|
|
- Clinton Little
- 6 years ago
- Views:
Transcription
1 Advanced Rendering Techniques Lecture 19 Perlin Noise Professor Leandro Augusto Frata Fernandes Lecture notes available in Perlin Noise A texturing primitive developed by Ken Perlin Can be used to simulate elements from nature Specially useful when computer memory is limited Reading List: Perlin (1985) Illustration created the Ken Perlin's Java reference implementation of Perlin Noise. K. Perlin. An image synthesizer. Advanced ACM Rendering SIGGRAPH Techniques Comput. Graph., (2012.1) 19(3), 1985, pp
2 And the Oscar Goes to Academy Award for Technical Achievement After around 1990 or so, every Hollywood effects film has used it James Cameron Movies (Abyss, Titanic,...) Animated Movies (Lion King, Moses,...) Arnold Movies (T2, True Lies,...) Star Wars Episode I Star Trek Movies Batman Movies and lots of others Source: Making Noise presentation ( TRON was the first one to use Perlin noise Advanced Rendering Techniques (2012.1) 3 Noise Scalar valued function which takes a n-dimensional vector as its argument Properties Statistical invariant under rotation o Has the same statistical character in all directions Statistical invariance under translation o Has the same statistical character in all regions A narrow bandpass limit in frequency o Visible features within a certain narrow size range Advanced Rendering Techniques (2012.1) 4 2
3 Making Noise 1. Set the function value at each integer coordinate to zero 2. Generate pseudo-random gradient (or slope) for the noise function with each integer coordinate 3. Interpolate smoothly between two integer coordinates Noise LocalNoise,, 1 LocalNoise,, K. Perlin. Improving Advanced noise. ACM Rendering Transactions Techniques on Graphics, (2012.1) 21(3), 2002, pp The Same Principle is Used in Higher Dimensional Noise Functions Pseudo-random slope at each corner Smooth interpolation Integer coordinates at corners Advanced Rendering Techniques (2012.1) 6 3
4 Making Better Noise Functions Natural stuff usually has large, medium and small details... but simple noise is well behaved Advanced Rendering Techniques (2012.1) 7 Fractal Sum of Noise Calls FractalSum Noise : Some 1, 2, 3 or higher dimensional vector. : Controls how rough the final function will be. Small values give more rough functions. Larger values give smoother functions. : Some positive number greater than 1. A harmonic will be Noise. : The number of terms to be summed before the next term become too small to see. Illustrations created by Ken Perlin ( Noise FractalSum with 2 Advanced Rendering Techniques (2012.1) 8 4
5 1D and 2D Fractal Sums, for Both frequency and wavelength decrease as increases Advanced Rendering Techniques (2012.1) 9 Turbulence Turbulence Noise The application of absolute value results in discontinuities in gradient It gives the appearance of turbulent flow Illustration created by Ken Perlin ( Turbulence with 2 Advanced Rendering Techniques (2012.1) 10 5
6 Using Turbulence in Phase Shift Marble,, MarbleColor sin Turbulence,, The stripe pattern is created with a sine function of the coordinate of surface location Ripple-distortion is produced by perturbing the phase of its domain Illustration created by Ken Perlin ( Marble,, with 2 Advanced Rendering Techniques (2012.1) 11 Looping Noise F,, F,, F,, : A value in the (time-) animated dimension : The periodicity of your animation (it will repeat every units) F: The function that generates a real number from a point in noise space Advanced Rendering Techniques (2012.1) 12 6
7 Seamlessly Tiling Noise F, 1 F, F, F, F, : Width of a tile : Height of a tile F: The function that generates a real number from a point in noise space Advanced Rendering Techniques (2012.1) 13 Examples (1/6) Using noise to generate natural materials Worn Metal Marble Cloud Flame Illustration created by Ken Perlin ( Advanced Rendering Techniques (2012.1) 14 7
8 Examples (2/6) Using the same 2D noise and different color maps to generate different textures Grayscale gradient Gradient with discrete colors Illustrations created by Herman Tulleken ( Fire gradient Advanced Rendering Techniques (2012.1) 15 Examples (3/6) Using 2D noise to blend between textures Image 1 Some noise-based function for blending Blend Image 2 Illustrations created by Herman Tulleken ( Advanced Rendering Techniques (2012.1) 16 8
9 Examples (4/6) Using 2D noise for terrain generation Height map generated from Perlin noise Mesh generated from height map Illustrations created by Herman Tulleken ( Advanced Rendering Techniques (2012.1) 17 Examples (5/6) Using 3D noise to animate 2D turbulent flow Clouds without noise ColorMap Illustrations from Making Noise presentation. Clouds with noise ColorMap Turbulence,, Noise translates in and ( is for animating) Advanced Rendering Techniques (2012.1) 18 9
10 Examples (6/6) Using 3D noise to animate 2D turbulent flow The Solar Corona Norm Turbulence Direction ColorMap Illustration created by Ken Perlin ( Advanced Rendering Techniques (2012.1) 19 Papers K. Perlin, An image synthesizer. ACM SIGGRAPH Comput. Graph. 19(3), 1985, pp K. Perlin, L. Velho, Live paint: painting with procedural multiscale textures. Proc. of SIGGRAPH, 1995, pp K. Perlin, E. M. Hoffert, Hypertexture. ACM SIGGRAPH Comput. Graph., 23(3), 1989, pp K. Perlin, Noise hardware. In Real-Time Shading SIGGRAPH Course Notes, Olano M., (Ed.), 2001 K. Perlin, Improving noise. ACM Trans. Graph., 21(3), 2002, pp Original Noise Simplex Noise Quintic Polynomial Advanced Rendering Techniques (2012.1) 20 10
Noise Course Overview Jim Whitehead. UC Santa Cruz School of Engineering courses.soe.ucsc.edu/courses/cmps265/spring14/01
Noise Course Overview Jim Whitehead UC Santa Cruz School of Engineering courses.soe.ucsc.edu/courses/cmps265/spring14/01 ejw@cs.ucsc.edu 31 Mar 2014 Computer generation Assume that there exists: One or
Interpolation and Basis Fns
CS148: Introduction to Computer Graphics and Imaging Interpolation and Basis Fns Topics Today Interpolation Linear and bilinear interpolation Barycentric interpolation Basis functions Square, triangle,,
Bump Mapping Which one of these two image has a better visual effect?
Bump Mapping Which one of these two image has a better visual effect? 1 Bump Mapping 2 Or, these two? Bump Mapping Many textures are the result of small perturbations in the surface geometry Modeling these
Texture-Mapping Tricks. How Bad Does it Look? We've Seen this Sort of Thing Before. Sampling Texture Maps
Texture-Mapping Tricks Filtering Textures Textures and Shading Bump Mapping Solid Textures How Bad Does it Look? Let's take a look at what oversampling looks like: Click and drag the texture to rotate
16 - Other Topics. The Stencil Buffer. Erosion. Fragment Discarding. Multi-Texturing + +
CSc 155 Advanced Computer Graphics 16- Other Topics The Stencil Buffer An additional per-pixel buffer typically used to direct OpenGL to behave differently depending on what is in the buffer Useful for
CS 563 Advanced Topics in Computer Graphics Chapter 31 Noise Based Textures. by Scott Ingram
CS 563 Advanced Topics in Computer Graphics Chapter 31 Noise Based Textures by Scott Ingram Introduction Why? Noise based textures tend to look more natural owing to the randomness of the texture Might
CMSC 425: Lecture 12 Procedural Generation: 1D Perlin Noise
CMSC 425: Lecture 2 Procedural Generation: D Perlin Noise Reading: The material on Perlin Noise based in part by the notes Perlin Noise, by Hugo Elias. (The link to his materials seems to have been lost.)
Advanced Rendering Techniques
Advanced Rendering Techniques Lecture Rendering Pipeline (Part I) Professor Leandro Augusto Frata Fernandes laffernandes@ic.uff.br Lecture notes available in http://www.ic.uff.br/~laffernandes/teaching/0./topicos_rendering
Interpolation and Basis Fns
CS148: Introduction to Computer Graphics and Imaging Interpolation and Basis Fns Topics Today Interpolation Linear and bilinear interpolation Barycentric interpolation Basis functions Square, triangle,,
White Paper. Perlin Fire. February 2007 WP _v01
White Paper Perlin Fire February 2007 WP-03012-001_v01 Document Change History Version Date Responsible Reason for Change 01 AT, CK Initial release Go to sdkfeedback@nvidia.com to provide feedback on Perlin
A texture controller. 1 Introduction. 2 The control-point texture structure. G. Papaioannou, T. Theoharis, A. Boehm²
1 Introduction 488 A texture controller G. Papaioannou, T. Theoharis, A. Boehm² Department of Informatics, University of Athens, TYPA Buildings, Panepistimiopolis, 157 84 Athens, Greece We propose an efficient
Real-Time Procedural Effects. John Spitzer Director of European Developer Technology NVIDIA Corporation
Real-Time Procedural Effects John Spitzer Director of European Developer Technology NVIDIA Corporation Overview What are procedural modeling and texturing? Advantages and disadvantages When to use procedural
1 Overview. EPFL 14 th Apr, /6. Michaël Defferrard Pierre Fechting Vu Hiep Doan
1/6 1 Overview This report presents our advancement on the rst part of the project : terrain generation using procedural methods. Figure 1 shows an example of what our actual code base is able to generate.
CGT 581 G Procedural Methods Fractals
CGT 581 G Procedural Methods Fractals Bedrich Benes, Ph.D. Purdue University Department of Computer Graphics Technology Procedural Techniques Model is generated by a piece of code. Model is not represented
Computer Graphics. - Texturing Methods -
Computer Graphics - Texturing Methods - Overview Last time BRDFs Shading Today Texturing Texture parameterization Procedural methods Procedural textures Fractal landscapes Next lecture Texture filtering
Chapter 4 In the beginning: The Pixel Stream Editor. Ken Perlin
Chapter 4 In the beginning: The Pixel Stream Editor Ken Perlin 4. In the beginning: the pixel stream editor Procedural texture Combining controlled noise into various mathematical expressions produces
State-of-the-Art in Procedural Noise Functions
EUROGRAPHICS 2010 State of the Art (STAR) report State-of-the-Art in Procedural Noise Functions A. Lagae 1,2 S. Lefebvre 2,3 R. Cook 4 T. DeRose 4 G. Drettakis 2 D.S. Ebert 5 J.P. Lewis 6 K. Perlin 7 M.
Hardware-Accelerated Gradient Noise for Graphics
Hardware-Accelerated Gradient Noise for Graphics Josef B. Spjut School of Computing University of Utah sjosef@cs.utah.edu Andrew E. Kensler SCI Institute University of Utah aek@cs.utah.edu Erik L. Brunvand
Texture Mapping. Brian Curless CSE 457 Spring 2016
Texture Mapping Brian Curless CSE 457 Spring 2016 1 Reading Required Angel, 7.4-7.10 Recommended Paul S. Heckbert. Survey of texture mapping. IEEE Computer Graphics and Applications 6(11): 56--67, November
More Texture Mapping. Texture Mapping 1/46
More Texture Mapping Texture Mapping 1/46 Perturbing Normals Texture Mapping 2/46 Perturbing Normals Instead of fetching a texture for color, fetch a new perturbed normal vector Creates the appearance
CS 4621 PPA3: Animation
CS 4621 PPA3: Animation out: Saturday 19 November 2011 due: Friday 2 December 2011 1 Introduction There are two parts to this assignment. In the first part, you will complete the implementation of key
Tiled Textures What if Miro Had Painted a Sphere
Tiled Textures What if Miro Had Painted a Sphere ERGUN AKLEMAN, AVNEET KAUR and LORI GREEN Visualization Sciences Program, Department of Architecture Texas A&M University December 26, 2005 Abstract We
As we said Procedural Textures are not images but textures that Blender creates automatically. They are good to use as a foundation to start with.
Textures There are two types of Textures in Blender. Procedural Textures that are by default created by the program and Image Textures that use external images. We will first see how you can apply a Procedural
Texture Mapping. Reading. Implementing texture mapping. Texture mapping. Daniel Leventhal Adapted from Brian Curless CSE 457 Autumn 2011.
Reading Recommended Texture Mapping Daniel Leventhal Adapted from Brian Curless CSE 457 Autumn 2011 Angel, 8.6, 8.7, 8.9, 8.10, 9.13-9.13.2 Paul S. Heckbert. Survey of texture mapping. IEEE Computer Graphics
Introduction to Digital Modelling and Animation in Design week 4 Textures
Introduction to Digital Modelling and Animation in Design week 4 Textures Thaleia Deniozou - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Subdivision Of Triangular Terrain Mesh Breckon, Chenney, Hobbs, Hoppe, Watts
Subdivision Of Triangular Terrain Mesh Breckon, Chenney, Hobbs, Hoppe, Watts MSc Computer Games and Entertainment Maths & Graphics II 2013 Lecturer(s): FFL (with Gareth Edwards) Fractal Terrain Based on
Images from 3D Creative Magazine. 3D Modelling Systems
Images from 3D Creative Magazine 3D Modelling Systems Contents Reference & Accuracy 3D Primitives Transforms Move (Translate) Rotate Scale Mirror Align 3D Booleans Deforms Bend Taper Skew Twist Squash
Input Nodes. Surface Input. Surface Input Nodal Motion Nodal Displacement Instance Generator Light Flocking
Input Nodes Surface Input Nodal Motion Nodal Displacement Instance Generator Light Flocking The different Input nodes, where they can be found, what their outputs are. Surface Input When editing a surface,
03 Vector Graphics. Multimedia Systems. 2D and 3D Graphics, Transformations
Multimedia Systems 03 Vector Graphics 2D and 3D Graphics, Transformations Imran Ihsan Assistant Professor, Department of Computer Science Air University, Islamabad, Pakistan www.imranihsan.com Lectures
Computer Graphics. Si Lu. Fall uter_graphics.htm 11/27/2017
Computer Graphics Si Lu Fall 2017 http://web.cecs.pdx.edu/~lusi/cs447/cs447_547_comp uter_graphics.htm 11/27/2017 Last time o Ray tracing 2 Today o Animation o Final Exam: 14:00-15:30, Novermber 29, 2017
Non-Photorealistic Rendering
15-462 Computer Graphics I Lecture 22 Non-Photorealistic Rendering November 18, 2003 Doug James Carnegie Mellon University http://www.cs.cmu.edu/~djames/15-462/fall03 Pen-and-Ink Illustrations Painterly
Texture Mapping. Brian Curless CSE 457 Spring 2015
Texture Mapping Brian Curless CSE 457 Spring 2015 1 Reading Required Angel, 7.4-7.10 Recommended Paul S. Heckbert. Survey of texture mapping. IEEE Computer Graphics and Applications 6(11): 56--67, November
Irradiance Caching in Pixar s RenderMan
Practical Global Illumination With Irradiance Caching (SIGGRAPH 2008 Class) Irradiance Caching in Pixar s RenderMan Pixar Animation Studios Overview Irradiance caching in Pixar s RenderMan: simpler than
Overview. Hierarchy. Level of detail hierarchy Texture maps Procedural shading and texturing Texture synthesis and noise.
Overview Level of detail hierarchy Texture maps Procedural shading and texturing Texture synthesis and noise Hierarchy Physics Computer Graphics Geometrical optics Macro-structures Transport Micro-structures
Texture Mapping: Solid Texturing CSE 681
Texture Mapping: Solid Texturing Texture Mapping Visual complexity on demand Vary display properties over object Visible pixel maps to location on object Location on object used to lookup display attributes
Introduction to Geometric Algebra
Introduction to Geometric Algebra Lecture 1 Why Geometric Algebra? Professor Leandro Augusto Frata Fernandes laffernandes@ic.uff.br Lecture notes available in http://www.ic.uff.br/~laffernandes/teaching/2011.2/topicos_ag
Shading. Flat shading Gouraud shading Phong shading
Shading Flat shading Gouraud shading Phong shading Flat Shading and Perception Lateral inhibition: exaggerates perceived intensity Mach bands: perceived stripes along edges Icosahedron with Sphere Normals
Chapter 9 Computer Graphics Procedural Modeling of Soil Structure
Chapter 9 Computer Graphics Procedural Modeling of Soil Structure Hansoo Kim, Minerva J. Dorantes, Darrell G. Schulze and Bedrich Benes Abstract Soil scientists in the USA have created a large national
Gettin Procedural. Jeremy Shopf 3D Application Research Group
Gettin Procedural Jeremy Shopf 3D Application Research Group 1 Adding Procedural Content (30 mins) Basics Why should I care? Noise, etc. Procedural Surfaces Layered ice Procedural Geometry Growing icicles
Texture. Texture Mapping. Texture Mapping. CS 475 / CS 675 Computer Graphics. Lecture 11 : Texture
Texture CS 475 / CS 675 Computer Graphics Add surface detail Paste a photograph over a surface to provide detail. Texture can change surface colour or modulate surface colour. Lecture 11 : Texture http://en.wikipedia.org/wiki/uv_mapping
CS 475 / CS 675 Computer Graphics. Lecture 11 : Texture
CS 475 / CS 675 Computer Graphics Lecture 11 : Texture Texture Add surface detail Paste a photograph over a surface to provide detail. Texture can change surface colour or modulate surface colour. http://en.wikipedia.org/wiki/uv_mapping
Paint by Numbers and Comprehensible Rendering of 3D Shapes
Paint by Numbers and Comprehensible Rendering of 3D Shapes Prof. Allison Klein Announcements Sign up for 1 st presentation at end of class today Undergrads: Thinking about grad school? Still here over
Reading. Texture Mapping. Non-parametric texture mapping. Texture mapping. Required. Angel, 8.6, 8.7, 8.9, 8.10,
Reading Required Angel, 8.6, 8.7, 8.9, 8.10, 9.13-9.13.2 Recommended Texture Mapping Paul S. Heckbert. Survey of texture mapping. IEEE Computer Graphics and Applications 6(11): 56--67, November 1986. Optional
Visualizer An implicit surface rendering application
June 01, 2004 Visualizer An implicit surface rendering application Derek Gerstmann - C1405511 MSc Computer Animation NCCA Bournemouth University OVERVIEW OF APPLICATION Visualizer is an interactive application
BCC Multi Stretch Wipe
BCC Multi Stretch Wipe The BCC Multi Stretch Wipe is a radial wipe with three additional stretch controls named Taffy Stretch. The Taffy Stretch parameters do not significantly impact render times. The
Computer Graphics Procedural Modeling of Soil Structure. Soil scientists in the USA have created a large national database of written soil profile
Computer Graphics Procedural Modeling of Soil Structure Hansoo Kim 1, Minerva Dorantes 2, Darrell G. Schulze 2, Bedrich Benes 1 1 Department of Computer Graphics Technology, 2 Agronomy Department, Purdue
Rendering Smoke & Clouds
Rendering Smoke & Clouds Game Design Seminar 2007 Jürgen Treml Talk Overview 1. Introduction to Clouds 2. Virtual Clouds based on physical Models 1. Generating Clouds 2. Rendering Clouds using Volume Rendering
Adaptive Point Cloud Rendering
1 Adaptive Point Cloud Rendering Project Plan Final Group: May13-11 Christopher Jeffers Eric Jensen Joel Rausch Client: Siemens PLM Software Client Contact: Michael Carter Adviser: Simanta Mitra 4/29/13
Introduction to Geometric Algebra
Introduction to Geometric Algebra Lecture 6 Intersection and Union of Subspaces Professor Leandro Augusto Frata Fernandes laffernandes@ic.uff.br Lecture notes available in http://www.ic.uff.br/~laffernandes/teaching/2013.1/topicos_ag
Scalar Visualization
Scalar Visualization Visualizing scalar data Popular scalar visualization techniques Color mapping Contouring Height plots outline Recap of Chap 4: Visualization Pipeline 1. Data Importing 2. Data Filtering
BCC Linear Wipe. When the Invert Wipe Checkbox is selected, the alpha channel created by the wipe inverts.
BCC Linear Wipe BCC Linear Wipe is similar to a Horizontal wipe. However, it offers a variety parameters for you to customize. This filter is similar to the BCC Rectangular Wipe filter, but wipes in a
Chapter IV Fragment Processing and Output Merging. 3D Graphics for Game Programming
Chapter IV Fragment Processing and Output Merging Fragment Processing The per-fragment attributes may include a normal vector, a set of texture coordinates, a set of color values, a depth, etc. Using these
Genera Esfera: Interacting with a Trackball Mapped onto a Sphere to Explore Generative Visual Worlds
Bridges Finland Conference Proceedings Genera Esfera: Interacting with a Trackball Mapped onto a Sphere to Explore Generative Visual Worlds Lali Barrière Dept. de Matemàtiques, Universitat Politècnica
Procedural Shape Synthesis on Subdivision Surfaces
Procedural Shape Synthesis on Subdivision Surfaces LUIZ VELHO 1,KEN PERLIN 2,LEXING YING 2,HENNING BIERMANN 2, 1 IMPA - Instituto de Matematica Pura e Aplicada 2 Media Research Lab / NYU Abstract. We present
Textures and normals in ray tracing
Textures and normals in ray tracing CS 4620 Lecture 7 1 Texture mapping Objects have properties that vary across the surface 2 Texture Mapping So we make the shading parameters vary across the surface
Textures III. Week 10, Wed Mar 24
University of British Columbia CPSC 314 Computer Graphics Jan-Apr 2010 Tamara Munzner Textures III Week 10, Wed Mar 24 http://www.ugrad.cs.ubc.ca/~cs314/vjan2010 News signup sheet for P3 grading Mon/today/Fri
Question 2: Linear algebra and transformations matrices rotation vectors linear transformation T=U*D*VT
You must answer all questions. For full credit, an answer must be both correct and well-presented (clear and concise). If you feel a question is ambiguous, state any assumptions that you need to make.
Computer Graphics CS 543 Lecture 13a Curves, Tesselation/Geometry Shaders & Level of Detail
Computer Graphics CS 54 Lecture 1a Curves, Tesselation/Geometry Shaders & Level of Detail Prof Emmanuel Agu Computer Science Dept. Worcester Polytechnic Institute (WPI) So Far Dealt with straight lines
Ian Parberry. Technical Report LARC
Tobler's First Law of Geography, Self Similarity, and Perlin Noise: A Large Scale Analysis of Gradient Distribution in Southern Utah with Application to Procedural Terrain Generation Ian Parberry Technical
Chapter 1. Introduction Marc Olano
Chapter 1. Introduction Marc Olano Course Background This is the sixth offering of a graphics hardware-based shading course at SIGGRAPH, and the field has changed and matured enormously in that time span.
Chapter 4- Materials and Textures
Chapter 4- Materials and Textures Materials and textures are what change your model from being gray to brilliant. You can add color, make things glow, become transparent like glass or make them look like
gltf 2.0: Status and Outlook
gltf 2.0: Status and Outlook 31st July 2018 by Norbert Nopper (nopper@ux3d.io, @McNopper) Content Status (15 minutes) Outlook (35 minutes) Questions & Answers (10 minutes) Status gltf 2.0 What we currently
CS 5600 Spring
Objectives From: Ed Angel University of New Mexico Introduce Mapping Methods - - Environment Mapping -Bump Mapping Consider basic strategies - Forward vs backward mapping - Point sampling vs area averaging
The Auto-MipMapper Shader
The Auto-MipMapper Shader for CARRARA 4,5 & 6 Version 0.2 The Auto-MipMapper reduces or removes moire patterns and twinklies in both still renders and animations. Unlike the MipMapper the Auto-MipMapper
Skin Texturing and Shading in Maya Part 2
Skin Texturing and Shading in Maya Part 2 In part 1, I gave an overview of Mental Ray's skin shader. In this chapter, I'll be discussing some of the techniques I've used to make texture maps in the past.
Reading. Texture Mapping. Non-parametric texture mapping. Texture mapping. Required. Angel, 8.6, 8.7, 8.9, Recommended
Reading Required Angel, 8.6, 8.7, 8.9, 8.10 Recommended Texture Mapping Paul S. Heckbert. Survey of texture mapping. IEEE Computer Graphics and Applications 6(11): 56--67, November 1986. Optional Woo,
Texture mapping. Computer Graphics CSE 167 Lecture 9
Texture mapping Computer Graphics CSE 167 Lecture 9 CSE 167: Computer Graphics Texture Mapping Overview Interpolation Wrapping Texture coordinates Anti aliasing Mipmaps Other mappings Including bump mapping
Generation of floating islands using height maps
2013-05-08 BTH-Blekinge Institute of Technology Essay filed as part of examination in DV1446 bachelor thesis in computer science. Generation of floating islands using height maps Summary A floating island
Chapter 5- Materials & Textures
Chapter 5- Materials & Textures As mentioned in the past chapter, materials and textures are what change your model from being gray to brilliant. You can add color, make things glow, become transparent
Space Filling: A new algorithm for procedural creation of game assets
Space Filling: A new algorithm for procedural creation of game assets Paul Bourke ivec@uwa, The University of Western Australia, 35 Stirling Hwy, Crawley, Perth, West Australia 6009. Email: paul.bourke@uwa.edu.au
Definitions. Modeling. Primitives. Creating a model of an object, usually out of a collection of simpler primitives
Modeling 1 Definitions Modeling Creating a model of an object, usually out of a collection of simpler primitives Primitives A basic shape handled directly the rendering system 2 Boundary Representation
COMP371 COMPUTER GRAPHICS
COMP371 COMPUTER GRAPHICS LECTURE 14 RASTERIZATION 1 Lecture Overview Review of last class Line Scan conversion Polygon Scan conversion Antialiasing 2 Rasterization The raster display is a matrix of picture
THE RELATIONSHIP BETWEEN PROCEDURAL GENERATION TECHNIQUES: CELLULAR AUTOMATA AND NOISE JESSE HIGNITE. Advisor DANIEL PLANTE
THE RELATIONSHIP BETWEEN PROCEDURAL GENERATION TECHNIQUES: CELLULAR AUTOMATA AND NOISE by JESSE HIGNITE Advisor DANIEL PLANTE A senior research proposal submitted in partial fulfillment of the requirements
Texture. No Textures
Texture Pattern of Intensity and color. Can be generalized to 3D texture. How do we get them? Take pictures. Write a program (procedural textures). Synthesize from examples How do we apply them? (Texture
Perlin Noise Function
Perlin Noise Function Purposes of noise functions Mimic Natural Phenomena Add complexity to a texture to make it less boring Useful Functions linear interpolate from a to b by a factor of t float lerp(
Lecture IV Bézier Curves
Lecture IV Bézier Curves Why Curves? Why Curves? Why Curves? Why Curves? Why Curves? Linear (flat) Curved Easier More pieces Looks ugly Complicated Fewer pieces Looks smooth What is a curve? Intuitively:
The Terrain Rendering Pipeline. Stefan Roettger, Ingo Frick. VIS Group, University of Stuttgart. Massive Development, Mannheim
The Terrain Rendering Pipeline Stefan Roettger, Ingo Frick VIS Group, University of Stuttgart wwwvis.informatik.uni-stuttgart.de Massive Development, Mannheim www.massive.de Abstract: From a game developers
INFOGR Computer Graphics. Jacco Bikker - April-July Lecture 3: Geometry. Welcome!
INFOGR Computer Graphics Jacco Bikker - April-July 2015 - Lecture 3: Geometry Welcome! Today s Agenda: 2D Primitives 3D Primitives Textures 2D Primitives Recap Last time: vectors and their properties:
Graphics Shaders. Theory and Practice. Second Edition. Mike Bailey. Steve Cunningham. CRC Press. Taylor&FnincIs Croup tootutor London New York
Graphics Shaders Second Edition ' -i'nsst«i«{r szizt/siss?.aai^m&/gm^mmm3$8iw3ii Theory and Practice Mike Bailey Steve Cunningham CRC Press Taylor&FnincIs Croup tootutor London New York CRCPrea it an Imprint
CSE528 Computer Graphics: Theory, Algorithms, and Applications
CSE528 Computer Graphics: Theory, Algorithms, and Applications Hong Qin State University of New York at Stony Brook (Stony Brook University) Stony Brook, New York 11794--4400 Tel: (631)632-8450; Fax: (631)632-8334
Texture Plugins provided by Avariant for Kerkythea.
Texture Plugins provided by Avariant for Kerkythea. Kerkythea provides a plugin SDK through which developers may create textures, materials, and lights. These are plugins for textures that you can apply
Texture. Detail Representation
Page 1 Texture Procedural shading and texturing Applied and projected textures Material / light properties Shadow maps Spherical and higher order textures Spherical mappings Environment and irradiance
Technical Game Development II. Reference: Rost, OpenGL Shading Language, 2nd Ed., AW, 2006 The Orange Book Also take CS 4731 Computer Graphics
Shader Programming Technical Game Development II Professor Charles Rich Computer Science Department rich@wpi.edu Reference: Rost, OpenGL Shading Language, 2nd Ed., AW, 2006 The Orange Book Also take CS
Shape modeling Modeling technique Shape representation! 3D Graphics Modeling Techniques
D Graphics http://chamilo2.grenet.fr/inp/courses/ensimag4mmgd6/ Shape Modeling technique Shape representation! Part : Basic techniques. Projective rendering pipeline 2. Procedural Modeling techniques Shape
Surface Rendering. Surface Rendering
Surface Rendering Surface Rendering Introduce Mapping Methods - Texture Mapping - Environmental Mapping - Bump Mapping Go over strategies for - Forward vs backward mapping 2 1 The Limits of Geometric Modeling
Visualization Computer Graphics I Lecture 20
15-462 Computer Graphics I Lecture 20 Visualization Height Fields and Contours Scalar Fields Volume Rendering Vector Fields [Angel Ch. 12] November 20, 2003 Doug James Carnegie Mellon University http://www.cs.cmu.edu/~djames/15-462/fall03
(Realistic) Modelisation of Water Waves, some applications to to visualization of liquid surfaces.
(Realistic) Modelisation of Water Waves, some applications to to visualization of liquid surfaces. Damien Rohmer, Cédric Rousset ETI 3 Image Processing, CPE Lyon February 11, 2007 Contents Introduction
Technical Game Development II. Reference: Rost, OpenGL Shading Language, 2nd Ed., AW, 2006 The Orange Book Also take CS 4731 Computer Graphics
Shader Programming Technical Game Development II Professor Charles Rich Computer Science Department rich@wpi.edu Reference: Rost, OpenGL Shading Language, 2nd Ed., AW, 2006 The Orange Book Also take CS
Image Processing. Alpha Channel. Blending. Image Compositing. Blending Errors. Blending in OpenGL
CSCI 42 Computer Graphics Lecture 22 Image Processing Blending Display Color Models Filters Dithering [Ch 6, 7] Jernej Barbic University of Southern California Alpha Channel Frame buffer Simple color model:
Image Processing. CSCI 420 Computer Graphics Lecture 22
CSCI 42 Computer Graphics Lecture 22 Image Processing Blending Display Color Models Filters Dithering [Ch 7.13, 8.11-8.12] Jernej Barbic University of Southern California 1 Alpha Channel Frame buffer Simple
BCC Rays Ripply Filter
BCC Rays Ripply Filter The BCC Rays Ripply filter combines a light rays effect with a rippled light effect. The resulting light is generated from a selected channel in the source image and spreads from
Procedural modeling and shadow mapping. Computer Graphics CSE 167 Lecture 15
Procedural modeling and shadow mapping Computer Graphics CSE 167 Lecture 15 CSE 167: Computer graphics Procedural modeling Height fields Fractals L systems Shape grammar Shadow mapping Based on slides
0. Introduction: What is Computer Graphics? 1. Basics of scan conversion (line drawing) 2. Representing 2D curves
CSC 418/2504: Computer Graphics Course web site (includes course information sheet): http://www.dgp.toronto.edu/~elf Instructor: Eugene Fiume Office: BA 5266 Phone: 416 978 5472 (not a reliable way) Email:
CITS 4402 Computer Vision
CITS 4402 Computer Vision A/Prof Ajmal Mian Adj/A/Prof Mehdi Ravanbakhsh, CEO at Mapizy (www.mapizy.com) and InFarm (www.infarm.io) Lecture 02 Binary Image Analysis Objectives Revision of image formation
TEXTURE MAPPING. DVA338 Computer Graphics Thomas Larsson, Afshin Ameri
TEXTURE MAPPING DVA338 Computer Graphics Thomas Larsson, Afshin Ameri OVERVIEW Motivation Texture Mapping Coordinate Mapping (2D, 3D) Perspective Correct Interpolation Texture Filtering Mip-mapping Anisotropic
Generalized Barycentric Coordinates
Generalized Barycentric Coordinates Kai Hormann Faculty of Informatics Università della Svizzera italiana, Lugano My life in a nutshell 2009??? Associate Professor @ University of Lugano 1 Generalized
CS 4620 Program 3: Pipeline
CS 4620 Program 3: Pipeline out: Wednesday 14 October 2009 due: Friday 30 October 2009 1 Introduction In this assignment, you will implement several types of shading in a simple software graphics pipeline.
Fall CSCI 420: Computer Graphics. 4.2 Splines. Hao Li.
Fall 2014 CSCI 420: Computer Graphics 4.2 Splines Hao Li http://cs420.hao-li.com 1 Roller coaster Next programming assignment involves creating a 3D roller coaster animation We must model the 3D curve
L15 POV-Ray - Part 1
Geophysical Computing L15-1 L15 POV-Ray - Part 1 1. What is POV-Ray? POV-Ray stands for the Persistance of Vision Raytracer. POV-Ray belongs to a class of programs called ray tracers. For you seismologists
Evolution of Imaging Technology in Computer Graphics. Related Areas
Evolution of Imaging Technology in Computer Graphics Jonas Gomes Rio de Janeiro http://www.visgraf.impa.br Image computation Related Areas 1 Related Areas An integrated view Problems on the frontiers Graphical