Focus On 3D Terrain Programming phần 6 pps

... byte-friendly range of [0, 255]. 122 6. Climbing the Quadtree Figure 6. 15 Wireframe image of the terrain from Figure 6. 14. Ta b le 6. 1 Controls for demo6_1 Key Function Escape / q Quit the program Up ... you can see from the wireframe in Figure 6. 16. 124 6. Climbing the Quadtree Figure 6. 16 Wireframe screenshot from demo6_2 showing how surface propagation affects the tessellat...

Ngày tải lên: 12/08/2014, 17:20

... implementation, the update/shutdown functions are going to be almost laughably small, consisting of one line each. To stay consistent with previous chapters, let’s start with the initialization function ... 128.Then we add the result of the ‘and operation’ on uiS and 0x007FFFFF. The ‘and operation’ is done to mask out any bits that might intrude upon the exponent bits. In the IEEE Floating...

Ngày tải lên: 12/08/2014, 17:20

... 59 62 lighting dynamic lightmaps, 68 –71 gouraud, 103–104 hardware, 62 63 height-based, 58 62 lightmapping, 63 65 slope, 66 68 water rendering, 174 lightmaps brightness extraction, 64 defined, 63 dynamic, ... functions, 160 Allocation function, 160 backbone data structure, 149–1 56 binary triangle tree, 129–132 detail mapping, 147–148 diamond creation function, 151–153 diamond...

Ngày tải lên: 12/08/2014, 17:20

... smooth terrain. Now, let’s kick this expla- nation into the second dimension. Keep the 1D explanation in your head constantly as we talk about what to change for the 2D explanation because every concept ... Shankel, Jason. “Fractal Terrain Generation—Fault Formation.” Game Programming Gems. Rockland, Massachusetts: Charles River Media, 2000. 499–502. 2 Shankel, Jason. “Fractal Terrain...

Ngày tải lên: 12/08/2014, 17:20

... lightmap onto terrain, but the more advanced lightmapping concepts concentrate on the genera- tion of a lightmap. (I’ll be showing you one such algorithm a bit later.) 64 4. Lighting Terrain Figure ... enter the hardcore terrain programming section, which contains all sorts of information on advanced terrain algorithms. References 1 Van Noland, Charlie. “Slope Lighting Terrain...

Ngày tải lên: 12/08/2014, 17:20

... calculation functionality to the CCAMERA class based on some information in Mark Morley’s article “Frustum Culling in OpenGL,” which I consider the best frustum culling tutorial I’ve seen on the ... interval (see Figure 5. 16) . You see how the pair of fans on top in Figure 5. 16 overlaps each other (producing a rather ugly result) with a one-unit interval and how the two fans on bo...

Ngày tải lên: 12/08/2014, 17:20

... allocation/freeing functions are the high- level abstractions that call on the add/remove triangle functions. Let’s focus on the low-level manipulation functions because the high-level ones are ... diamond information and use the vertices contained in the diamond (the diamond’s center vertex and the center vertices of its previous and next diamond links). The high- level rendering funct...

Ngày tải lên: 12/08/2014, 17:20

... Now we need to work on the cloud generation function. The cloud generation function still needs to obtain octave, amplitude, frequency, and h information for fractal generation, but it also needs ... an interpolation bias. This function is called CosineInterpolation, and we’ll use it in conjunction with the RangedSmoothRandom function to form the basis of our noise generation. Now for the...

Ngày tải lên: 12/08/2014, 17:20

... { 1,2,3,4,5 ,6, 7,8,9,10,11,12,13,14,15, 16, 17,18,19,20,21,22,23,24,25, 26, 27,28,29,30,31,32,33,34,35, 36, 37,38,39,40,41,42,43,44,45, 46, 47, 48,49,50,51,52,53,54,55, 56, 57,58,59 ,60 ,61 ,62 ,63 ,64 ,65 ,66 ,67 ,68 ,69 , 70,71,72,73,74,75, 76, 77,78,79,80,81,82,83,84,85, 86, 87,88,89,90,91, 92,93,94,95, 96, 97,98,99,100,101,102,103,104,105,1 06, 107,108,109, 110,111,112,113,114,115,1 16,...

Ngày tải lên: 07/07/2014, 03:20

... enumeration value corresponding to the button selected by the user. MessageBoxButtons Enumeration Values OK The message box should contain an OK button only. OKCancel The message box should contain ... continue. MessageBoxDefault- Button Enumeration Values Button1 The first button in the message box is the default. Button2 The second button is the default. Button3 The third button is the d...

Ngày tải lên: 07/07/2014, 04:20