book

Mathematics for Game Programming and Computer Graphics

by Penny de Byl

November 2022

Intermediate to advanced

444 pages

9h 53m

English

Packt Publishing

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Technical requirementsGetting Started with Python, PyCharm, and PygameCreating a Basic Graphics WindowWorking with Window and Cartesian CoordinatesLet’s do it…Your Turn…SummaryAnswers
Technical requirementsColorLet’s do it…Your turn…LinesLet’s do it…Your turn…Let’s do it…TextLet’s do it…Your turn…PolygonsLet’s do it…Your turn…Raster ImagesLet’s do it…SummaryAnswers
Technical requirementsThe Naïve Way: Drawing a line with brute forceLet’s do it…Enter Bresenham: The improved approachLet’s do it…Drawing circles the Bresenham wayLet’s do it…Anti-aliasingSummary
Technical requirementsExploring the OpenGL Graphics PipelineLet’s do it…Drawing Models with MeshesLet’s do it…Your turn…Viewing the Scene with CamerasProjecting Pixels onto the ScreenUnderstanding 3D Coordinate Systems in OpenGLPerspective ProjectionYour turn…Projecting into the NDCLet’s do it…Your turn…SummaryAnswers
Technical requirementsAdding Lighting EffectsLet’s do it…Your turn…Placing Textures on MeshesLet’s do it…Let’s do it…SummaryAnswers
Technical requirementsIntroducing the main game loopUpdating and drawing objectsLet’s do it…Your turn…Measuring timeLet’s do it…SummaryAnswers
Technical requirementsWorking with mouse interactionsLet’s do it…Your turn…Combining 2D and 3D environmentsLet’s do it…Converting the mouse to projection coordinatesLet’s do it…Your turn…Let’s do it…Adding keyboard commandsLet’s do it…Your turn…Let’s do it…SummaryAnswers

Technical requirementsComparing similar trianglesWorking with right-angled trianglesYour turn…Calculating angles with sine, cosine, and tangentInvestigating triangles by drawing 3D objectsSummaryAnswers
Technical requirementsUnderstanding the difference between points and vectorsDefining vector key operations Let’s do it…Working out a vector’s magnitude Your turn…Exploring the relationship between angles and vectorsThe dot productThe cross productSummaryAnswers
Technical requirementsDefining lines, segments, and raysUsing the parametric form of linesYour turn…Let’s do it…Calculating and displaying normalsYour turn…Let’s do it…Your turn…Summary Answers
Technical requirementsDisplaying Mesh Triangle NormalsLet’s do it…Defining polygon sides with normalsWorking with visible sides of a polygonCulling Polygons According to the NormalsLet’s do it…Let’s do it…Exploring How Normals Affect LightingLet’s do it…Summary
Technical requirementsTranslating points in 3DYour turn…Scaling points with x, y, and zLet’s do it…Your turn…Rotating points around a pivotLet’s do it…Exploring transformation ordersShearing and reflectionsSummaryAnswers
Technical requirementsDefining matricesPerforming operations on matricesAdding and subtracting matricesMultiplying by a single valueDividing matricesCreating matrix representations of affine transformationsMoving from linear equations to matrix operationsCompounding affine transformationsCombining transformation matrices for complex maneuversLet’s do it…SummaryAnswers
Technical requirementsUnderstanding OpenGL’s Matrix StackWorking with the Model MatrixLet’s do it…Your turn…Working with the View MatrixLet’s do it…Working with the Projection MatrixLet’s do it…Your turn…SummaryAnswers
Technical requirementsFlying maneuversLet’s do it…Your turn...Understanding and fixing compound rotation quirksImproving camera orientationsLet’s do it…SummaryAnswers
Technical requirementsIntroducing quaternionsRotating around an arbitrary axisExploring quaternion spacesLet’s do it…Working with unit quaternionsYour turn…Understanding the purpose of normalizationLet’s do it...Your turn...SummaryAnswers
Technical requirementsUnderstanding shadersTransferring processing from the CPU to the GPULet’s do it…Processing pixel by pixelLet’s do it…Summary
Technical requirementsColoring and texturing mesh facesLet’s do it…Let’s do it…Your turn...Turning on the lightsAmbient lightingDiffuse lightingPhongSummaryAnswers
Technical requirementsFollowing where light bouncesApplying the Inverse Square LawCalculating Bidirectional ReflectanceDistribution functionsThe Fresnel effectGeometric attentuation factorPutting it all togetherLet’s do it…Summary
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Content preview from Mathematics for Game Programming and Computer Graphics

Part 3 – Essential Transformations

In this part, you will learn how to manipulate graphical elements primarily through translation, rotation, and scaling. This content makes use of the knowledge obtained in Part 2, Essential Trigonometry, by applying vector and triangle mathematics to solve the problem of moving, scaling, and rotating objects in a 3D environment. Of most importance to your success as a graphics programmer is the thorough examination of matrices and quaternions that will explain why graphics and game engines always work with 4D values. In addition, the perplexing set of coordinate spaces that are a large part of transforming a model’s 3D vertices into pixels on the screen will be demystified and built into the project.

In this ...