3D Graphics with OpenGL ES and M3G- P42 pptx

... tables and store the results in fixed point. A case in point is sin (and from that cos), for which only a 90 ◦ segment needs to be tab- ulated, and the rest can be obtained through the symmetry and ... (changes sign) ; note: if (clz — 1) resulted in — 1, we just want to take the high ; value of the result and not touch the exponent at all. ; This is achieved by appending rest of the o...

Ngày tải lên: 03/07/2014, 11:20

... axes of symmetry. When the chair is moved in the room, its coordinate system moves and may reorient with respect to the parent coordinate system (that of the room). 2.1.1 VECTORS AND POINTS A3Dpoint ... (2.2) SECTION 2.2 MATRICES 31 2.1.3 HOMOGENEOUS COORDINATES Representing both points and direction vectors with three coordinates can be confusing. Homogeneous coordinates are a usef...

Ngày tải lên: 03/07/2014, 11:20

... image in one go. However, if clipping the primitives introduces new vertices at image boundaries, and unless the colors and possibly other properties are interpolated using exactly the same algorithm ... light source. However, OpenGL does not typically represent the true light energy, but a com- pressed representation of light, and quadratic attenuation typically produces too harsh ch...

Ngày tải lên: 03/07/2014, 11:20

... surface of the mesh by connecting vertices into triangles, as shown in Figure 5.2. OpenGL ES defines three ways to form triangles from consecutive indices—triangle strips, lists, and fans—but M3G ... these tech- niques is used with keyframe animation driving the normal motion, rigid body dynamics 5 CHAPTER SCENE MANAGEMENT By dealing with individual triangles, matrices, and dispara...

Ngày tải lên: 03/07/2014, 11:20

... triangle meshes, at least not from the user’s point of view. Such renderables include spheres, cylinders, terrains, particles, impostors, skyboxes, and so on. The Camera node defines from where and ... that its vertex coordinates are present, that t riangle indices do not point beyond vertex array boundaries, that a SkinnedMesh has all the necessary bones in place, and so on. To compute...

Ngày tải lên: 03/07/2014, 11:20

... contain- ing two strips, one with five and the other with three vertices; this translates into three and one triangles, respectively. static final int myStripIndices[]={0,3,1,4,5,7,6,8}; static ... 150.0f); With all of that done, we can proceed to rendering the mesh. You will normally do this in the paint method for your MIDP Canvas. void paint (Graphics g) { Graphics3 D g3d = Gra...

Ngày tải lên: 03/07/2014, 11:20

... culling, 150 OES draw texture extension, 238 OES matrix palette extension, 235–238 OES query matrix extension, 234–235 opacity, 96 OpenGL, 157 extensibility, 165 OpenGL ES versus, 159 OpenGL ES 1.0, ... 115 OpenGL versus, 159 packaging, 169–170 pipeline illustration, 56 pixels tests, 213–218 prefixes/suffixes, 167–168 primitives, 58 profiles, 161 reflectance model, 61 reflection models,...

Ngày tải lên: 03/07/2014, 11:20

... 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 ... 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...

Ngày tải lên: 03/11/2012, 11:23

... providing 3D graphics capabilities to the entire range of embed- ded devices from wristwatches to smart phones, modern games consoles, and beyond. All OpenGL ES 2.x devices are expected to ship with ES ... three parts and several appendices. Part I gives an introduction to the 3D graphics concepts that are needed to understand OpenGL ES and M3G, which are then covere...

Ngày tải lên: 28/04/2014, 15:49

... blank Mobile 3D Graphics with OpenGL ES and M3G viii CONTENTS 6.7 Textures 152 6.7.1 Texture Storage 152 PART II OPENGL ES AND EGL CHAPTER 7. INTRODUCING OPENGL ES 157 7.1 Khronos Group and OpenGL ES 157 7.2 ... Features in OpenGL ES 1.1 164 7.4.4 Extension Mechanism 165 7.4.5 OpenGL ES Extension Pack 166 7.4.6 Utility APIs 166 7.4.7 Conventions 167 7.5 Hel...

Ngày tải lên: 03/07/2014, 11:20