environment mapping and reflections with opengl es

... effects and smoke and fire and splattering blood and explosions The list goes on and on You can achieve all of these effects with particles However, it is also good to think about particles when designing ... coordinates You calculate those from the texturedQuad and store them for later: mesh.vertexes = vertexes; [(BBTexturedMesh*)mesh setUvCoordinates:uvCoordinates]; mesh.vertexStride = 2; mesh.renderStyle ... MaterialController: This object handles the loading of textures into OpenGL It can handle single textures or atlases when accompanied with a plist file describing the atlas contents GameTypes: This is just a...

Ngày tải lên: 17/03/2014, 23:20

... Game and Graphics Programming for iOS and Android® with OpenGL ES 2.0 ffirs.indd iii 1/11/12 8:21:00 AM ffirs.indd iv 1/11/12 8:21:00 AM Game and Graphics Programming for iOS and Android® with OpenGL ... your own messages, you must join xxi flast.indd xxi 12/31/11 9:40:44 AM INTRODUCTION Once you join, you can post new messages and respond to messages other users post You can read messages at any ... load, and multiply matrices and gain direct access to the model view, projection, normal, and texture matrix in a similar fashion as you would normally with the older version of OpenGL ES and OpenGL...

Ngày tải lên: 22/03/2014, 13:36

... iOS and Android® with OpenGL ES 2.0 Romain Marucchi-Foino John Wiley & Sons, Inc www.it-ebooks.info ffirs.indd v 1/11/12 8:21:00 AM Game and Graphics Programming for iOS and Android® with OpenGL ... order to use this book with Android you will need an actual device with OpenGL ES 2.0 support The emulator provided by the Android SDK supports only OpenGL ES 1.x, not OpenGL ES 2.0 So local deployment ... load, and multiply matrices and gain direct access to the model view, projection, normal, and texture matrix in a similar fashion as you would normally with the older version of OpenGL ES and OpenGL...

Ngày tải lên: 29/03/2014, 22:20

... array sizes (values per vertex) and data types present) For type the values BYTE, SHORT, INT, FLOAT, and DOUBLE indicate types byte, short, int, float, and double, respectively; and the values UNSIGNED ... CHAPTER OPENGL OPERATION Finally, command names, constants, and types are prefixed in the GL (by gl, GL , and GL, respectively in C) to reduce name clashes with other packages The prefixes are omitted ... input values The next stage operates on geometric primitives described by vertices: points, line segments, and polygons In this stage vertices are transformed and lit, and primitives are clipped...

Ngày tải lên: 03/11/2012, 11:23

... Implementations Profiles and Versions OpenGL ES 1.0 in a Nutshell New Features in OpenGL ES 1.1 Extension Mechanism OpenGL ES Extension Pack Utility APIs Conventions Hello, OpenGL ES! CHAPTER OPENGL ES TRANSFORMATION ... of embedded devices from wristwatches to smart phones, modern games consoles, and beyond All OpenGL ES 2.x devices are expected to ship with ES 1.1 drivers Details of the 2.x standard are beyond ... definition of OpenGL ES standard He also headed the team that implemented and integrated Nokia’s first OpenGL ES and EGL solution xv Acknowledgments The creation and adoption of OpenGL ES and M3G was...

Ngày tải lên: 28/04/2014, 15:49

... Implementations Profiles and Versions OpenGL ES 1.0 in a Nutshell New Features in OpenGL ES 1.1 Extension Mechanism OpenGL ES Extension Pack Utility APIs Conventions Hello, OpenGL ES! CHAPTER OPENGL ES TRANSFORMATION ... Storage 152 152 OPENGL ES AND EGL CHAPTER INTRODUCING OPENGL ES 157 7.1 Khronos Group and OpenGL ES 157 7.2 Design Principles 158 7.3 Resources 159 7.3.1 7.3.2 7.3.3 7.4 API Overview 7.4.1 7.4.2 7.4.3 ... Mobile 3D Graphics with OpenGL ES and M3G This page intentionally left blank Mobile 3D Graphics with OpenGL ES and M3G Kari Pulli Tomi Aarnio Ville Miettinen Kimmo...

Ngày tải lên: 03/07/2014, 11:20

... texture coordinates of the unit 3.4.2 INTERPOLATING GRADIENTS The simplest way to spread the values at vertices across triangles is to choose the values at one of the vertices and assign the same ... pixels, and linearly interpolates the associated values such as colors and texture coordinates to the pixels between the vertices We can express this using so-called barycentric coordinates If ... functions or modes, we define the interpolated fragment color and alpha as Cf and Af , the texture source color and alpha as Cs and As , and the user-given constant color as Cc and Ac See Figure...

Ngày tải lên: 03/07/2014, 11:20

... stencil buffer value and a reference value At its simplest, one can initialize the stencil buffer with zeros, paint an arbitrary pattern with ones, and then with NOTEQUAL draw only within the stencil ... particular, it does not correspond to double attenuation due to light traversing first to a reflective surface and then reflecting back to the observer, as some sources suggest With large values of d both ... give better results but require more samples and work [GW02] This is a very brute force approach, and the processing and memory requirements increase linearly by the number of samples per pixel...

Ngày tải lên: 03/07/2014, 11:20

... factor for destination color produces (Rs Rd , Gs Gd , Bs Bd , As Ad ) In OpenGL ES, SRC_COLOR and ONE_MINUS_SRC_COLOR are legal blending factors only for destination color, while DST_COLOR and ONE_MINUS_DST_COLOR ... objects front-to-back with depth OES_blend_subtract OES_blend_func_separate 98 LOW-LEVEL RENDERING testing and depth writing turned on, then turn depth write off and enable blending, and finally draw ... values and at roughly equal amounts where the original image values are around 71 or 72, the eye fuses them together and interprets them as a color between and This is called dithering, and is...

Ngày tải lên: 03/07/2014, 11:20

... classes of curves and splines used in computer graphics One type of spline commonly used in animation and modeling tools is an extension of Catmull-Rom splines called Kochanek-Bartels splines [KB84] ... so that each Mi represents the vertex coordinates (and other related data, such as normals and texture coordinates) for one keyframe The mesh topology or list of primitives is only specified once ... between the mesh keyframes, we can just lerp between any two of them if the keyframes represent poses on a timeline Better yet, we can think of our keyframes as alternative shapes, or morph targets,...

Ngày tải lên: 03/07/2014, 11:20

... projective texture mapping and other tricks The coordinates and normals of a triangle mesh are given in its local coordinate system— object coordinates and are transformed into eye coordinates by the ... the mesh; see Section 3.4.1 for details IndexBuffers define the surface of the mesh by connecting vertices into triangles, as shown in Figure 5.2 OpenGL ES defines three ways to form triangles from ... cannot handle complete objects, materials, characters, and scenes, together with their associated animations The artists and their tools deal with higher-level concepts than triangle strips and blending...

Ngày tải lên: 03/07/2014, 11:20

... coordinates are present, that triangle indices not point beyond vertex array boundaries, that a SkinnedMesh has all the necessary bones in place, and so on To compute the modelview matrix for a mesh, ... 12.5 for how a SkinnedMesh is structured Note that regardless of the type of mesh, the vertex buffers and other mesh components in M3G can be shared between multiple meshes This allows, for example, ... triangle meshes Some scene graphs support a wide variety of renderables that are not ordinary triangle meshes, at least not from the user’s point of view Such renderables include spheres, cylinders,...

Ngày tải lên: 03/07/2014, 11:20