thi công cọc ly tâm
Rate-Distortion Analysis and Traffic Modelling of Scalable Video Coders
Ngày tải lên :
06/11/2012, 10:45
... empirically or analytically, each of which has its own benefits and drawbacks An empirical approach obtains R-D curves by interpolating between (R, D) samples of a given encoder [79] and an analytical ... usually results in better estimation of actual R-D curves, it fundamentally lacks theoretical insight into the structure of the coding system By contrast, an analytical approach is usually not ... file has to be fully downloaded before playback In contrast, the streaming mode allows users to play video while only partial content has been received and decoded The former usually results in long...
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Hull and White model
Ngày tải lên :
18/10/2013, 03:20
... Markov property, this is random only through a dependence on r t To compute R this option price, we need the joint distribution of tT1 r u du; r T1 conditioned on r t This CHAPTER 30 Hull ... ; so bond prices of all maturities are perfectly correlated Interest rate is normally distributed, and hence can take negative values Consequently, the bond price " B t; T = IE exp , ... 2 t; T 2 t , r t Ct t; T , At t; T = r t : We leave the verification of this equation to the homework After this verification, we have the formula dB t; T = r t B t; T dt , t C t;...
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computer graphics and geometric modeling - m. agoston
Ngày tải lên :
11/11/2013, 00:18
... on geometric modeling Although this subject is slowly entering the field, its coming has been slow Probably the two main reasons for this are that computers are only now getting to be powerful ... 3.3 Polygon Clipping Algorithms 3.3.1 Sutherland-Hodgman Polygon Clipping 3.3.2 Weiler Polygon Clipping 3.3.3 Liang-Barsky Polygon Clipping 3.3.4 Maillot Polygon ... exciting, rapidly developing field that has come a long way from the early days when people first tried to use computers for this, things are still being done in rather ad hoc ways There is really no overall...
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Tài liệu The UML and Data Modeling pptx
Ngày tải lên :
10/12/2013, 15:15
... and assessments to the rest of the team Data analysts primarily gather data out of documented business requirements The database itself traditionally has been described by notations called entity ... must express a detailed description of the database This is done using Rational’s Data Modeling Profile for the UML2 The UML Data Modeling Profile This white paper describes in detail the Data Modeling ... the association of a table to a schema Key Keys are used to access the table Primary keys uniquely identify a row in a table, while foreign keys access data in other related tables The key is...
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Tài liệu 2D Artwork and 3D Modeling for Game Artists- P1 pptx
Ngày tải lên :
14/12/2013, 20:15
... well I guarantee that there’s nothing like this book You’re going to be blown away by the sheer amount of amazing material and graphics in this book What’s more, this book includes step-by-step ... invaluable; if you’re going to texture or model anything, by all means go outside and take snapshots of the real thing This will help you keep things looking realistic and acceptable In fact, many ... that you apply When it comes to games and graphics, use this list when prioritizing what your system should have, in order of importance: Video card with 3D acceleration This is probably the most...
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Tài liệu 2D Artwork and 3D Modeling for Game Artists- P2 docx
Ngày tải lên :
14/12/2013, 20:15
... the neighborhood of 2,000 to 5,000, and weapons possessing only 500–2,000 polygons This need for a low polygon (poly) count will deeply affect the way you model; with every step you take to shape ... doable If this happens, reposition the target object slightly and try again You may also need to slightly adjust the Identity value in the tool’s Options panel for things to work smoothly.This value ... that hovered around 300 polygons, while more recent games feature weapons in the 700-polygon range Keeping with this linear growth, you can safely target your weapon’s poly count to be around 1000...
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Tài liệu 2D Artwork and 3D Modeling for Game Artists- P3 doc
Ngày tải lên :
14/12/2013, 20:15
... tools allow you to view your U-Vs planarly, cylindrically, spherically, or polarly Using primarily the first three of these techniques, you can easily and quickly unwrap any object’s texture coordinates, ... on www.verypdf.com to remove this watermark 93 TE AM FL Y This page intentionally left blank ® Team-Fly Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark PART TWO Unwrapping ... Then you paint the texture according to the newly adjusted U-V map, and finally apply the texture map to the model Sound confusing? It really isn’t! In this chapter, you will ■ ■ ■ ■ TIP Enter the...
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Tài liệu 2D Artwork and 3D Modeling for Game Artists- P4 doc
Ngày tải lên :
14/12/2013, 20:15
... getting everything to fit within the area! You can this one of two ways: either let DeepUV automatically pack them in for you (which I don’t recommend, because it might not arrange things to your ... DeepUV crashes), then something is wrong with the mesh of the object itself.The only thing you can is return to 3D Studio Max and fix the problem Usually, the problem is something as simple as an ... in Figure 5.33 NOTE When you map interactively, you perform the operation manually.The great thing about interactive mapping is that you can manually specify the way DeepUV uses the selected...
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Tài liệu 2D Artwork and 3D Modeling for Game Artists- P5 pdf
Ngày tải lên :
14/12/2013, 20:15
... Normal human characters have fairly spherically shaped heads, and therefore an Interactive: Sphere mapping would suffice However, ‘tis not this case for this lovely beast, which will require a ... fact alive Organic, to me, are things that relate directly to living things Rock-based textures I like to contain within the inorganic category, despite their worldly origins, because they represent ... channels can be used extensively in this respect to give textures realism Edges of objects within my textures usually have a 3D look Beveling and embossing are commonly applied to achieve that Drop...
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Tài liệu 2D Artwork and 3D Modeling for Game Artists- P6 docx
Ngày tải lên :
14/12/2013, 20:15
... entirely, you’d easily notice that it is a single tileable texture repeated in all directions (see Figure 8.44) To avoid this, you can create a randomly tileable set of textures (typically somewhere ... keep applying this filter to get the veins you prefer, but since you’re recording this action, it’s best not to.) The veins in the final marble texture are represented by the thin dark scraggly lines ... Medieval Stone texture When you’re finished recording this procedure, you’ll probably think that all this is way too complicated To generate a completely different wall texture every time, however,...
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Tài liệu 16 Validation, Testing, and Noise Modeling pdf
Ngày tải lên :
16/12/2013, 04:15
... an appropriate representation of the underlying system? This is referred to variously as model validation, model verification, or model diagnostics Finally, various models of univariate noise pdf ... fitted model is unable to “adequately” capture the underlying true system, one expects { (t)} to deviate from i.i.d distribution This is one of the most widely used and useful diagnostic checks ... the fitted model parameters This aspect was discussed in the third section A cautionary note is appropriate at this point All of the tests and procedures discussed in this chapter are based upon...
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Tài liệu 2D Artwork and 3D Modeling for Game Artists- P7 ppt
Ngày tải lên :
24/12/2013, 06:16
... door’s layers to bring up the Styles screen and apply an inner bevel Apply this same style to the other door (see Figure 8.132) Figure 8.132 Apply inner bevels to both doors Style: Style: Bevel ... Metal as a texture Apply a bevel for a 3D effect Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark Metal 287 Rusted Metal Rust varies greatly from bubbly dark brown spots ... effect This technique is fairly useful for other things like bolts, screws, dripping slime, and blood It also makes a cool effect when you Quick Mask some type and make the letters drip with something...
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Tài liệu 2D Artwork and 3D Modeling for Game Artists- P8 doc
Ngày tải lên :
24/12/2013, 06:16
... There’s only a handful of stuff left that I want to show you, so I didn’t bother to try to sort everything into separate main categories Wood I know, wood is technically an organic texture But this ... images were decals overlaid dynamically by the game’s engine A decal can also be a simple metal sign or something that needs to be placed anywhere The only thing special about these game assets ... up a good portion of the image (see Figure 8.221) This will be the outer shape of the erosion I highly recommend you record this as an action at this point, since you’ll want to make several variants...
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Tài liệu 2D Artwork and 3D Modeling for Game Artists- P9 doc
Ngày tải lên :
24/12/2013, 06:16
... Texturing Examples,” this chapter is relatively short; that’s because many of the techniques I described in those chapters—especially in Chapter 8—apply here TIP If you’ve skipped to this chapter before ... www.verypdf.com to remove this watermark 400 10 Organic Texture Tutorials with Photoshop Rhinoceros Skin This texture can be applied to just about anything requiring thick, tough skin, especially if it needs ... image, particularly at the edges Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark Clothing 413 Clothing I’m tossing in a quick section on rendering clothing here because,...
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Tài liệu 2D Artwork and 3D Modeling for Game Artists- P10 doc
Ngày tải lên :
24/12/2013, 06:16
... everything’s installed, the first thing you need to is bounce your U-V map from Max (or DeepUV) over to Deep Paint 3D (Mind you, this is only one way to this kind of work; you could just as easily ... clothing, land, sea—all of which can be used in nearly every 3D game engine on the market Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark This page intentionally ... of this project are closely related and, in this case, rely on four separate programs all inter-linked with one another, as shown in Figure 11.4 With enough system memory, you can efficiently...
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Tài liệu 2D Artwork and 3D Modeling for Game Artists- P11 ppt
Ngày tải lên :
24/12/2013, 06:16
... everything’s installed, the first thing you need to is bounce your U-V map from Max (or DeepUV) over to Deep Paint 3D (Mind you, this is only one way to this kind of work; you could just as easily ... mesh definition, the base texture nearly suffices The only thing I did (aside from applying a simple beige Clouds filter to color the nails) was lightly apply the effects-layer technique to make ... to use The great thing about Deep Paint 3D is you can actually paint directly on a model, going across U-V seams and everything! However, you need to your detailed artwork within Photoshop To...
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Tài liệu 2D Artwork and 3D Modeling for Game Artists- P12 pdf
Ngày tải lên :
24/12/2013, 06:16
... the same polygon count—1,358 in this case To cut this count in half, go to the Modifier panel and apply the MultiRes modifier In the MultiRes panel, click the Generate button to apply the modifier ... doesn’t need to precisely fit the belly of the slogre; simply adjust the spine so that the arms drop down and center themselves within the mesh The head can be scaled fairly big and elongated, ... objects are simply copies of the same model, but each has varying polygon counts This way, the game engine can replace a higher mesh object with a copy whose mesh is lower in polygon count as...
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Tài liệu 2D Artwork and 3D Modeling for Game Artists- P13 docx
Ngày tải lên :
24/12/2013, 06:16
... and building things in trueSpace Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark Polygons, Polygons, and More Polygons 609 Polygons, Polygons, and More Polygons Let’s ... color) Obviously you can’t much of anything with something like this (aside from making a large dot blink annoyingly), so you’ll have to increase your resolutions and color depths to make things a ... level designer This is a position typically found only within larger game companies The lead level designer will have years of experience designing levels for games, and oversee the daily operations...
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Tài liệu 2D Artwork and 3D Modeling for Game Artists- P14 pptx
Ngày tải lên :
24/12/2013, 06:16
... smooth Vertex smoothing A process of applying smoothing techniques to polygons by analyzing the vertex angles in the mesh Vertex A point in 3D space that defines the structure of a polygon and has ... use of this format JPEG This is the Joint Photographic Experts Group file format, invented primarily for optimizing file sizes for things like the World Wide Web The JPEG format is usually the ... depths are based on this as well Game programmers design their game engines around this system, so making your images in this fashion will allow them to easTIP ily fit within the game engines’...
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