In "SIGGRAPH 2003" heeft Valve een presentatie gehouden genaamd "Making of Half-Life2" op de Softimage booth. De Japanse game site "
4Gamer" heeft een paar filmpjes en artikels releasedvan deze presentatie:
De normale maps maken met het hi-poly model op Softimage XSI:
Geanimeerde Alyx op Softimage XSI:
Interview met Bill Van Buren (Valve's designer)
hier beschikbaar.
Eerst: Het XSI artikel (Verklaring van filmpje)
Originally, if you want unevenness in your geometry, you would use more polygons. But with 3d games the problem is that this causes a performance decrease, and so for extremely detailed bump expression the approach that was devised to substitute bump mapping for polygons.
- Polygon from the model high accuracy the tool which forms the normal map it is.
- When normal the curved surface ahead applying the map does perturbation, recalculate of the normal map necessary becomes as needed
- In extent and the video memory which so utilize the normal map luxuriously room it is
-> Large capacity video memory is needed
With Softimagec|xsi, the add-on of the compilation tool is offered to make high quality normal maps. In addition, for the mainstream it loaded function even with the video card, in these days when the video memory 128MB model is becoming natural, it reached the point where it can utilize this technology realistically with the 3d game.
In this movie, a rock wall which consists of several thousand polygons is dropped into the normal map function of Softimagec|xsi and the rock wall which applies circumstances and the normal map which are packed, is verified on the Half-Life 2 engine, as shown.
This kind of technique can be applied to the clothes of characters which appear in the HL2 and also the texture of the background, the normal map which becomes "opposite" to be prepared, it can look at the bump mapping which utilizes this everywhere in the actual game.
Nu, het Alyx filmpje (Verklaring van filmpje)
Half-Life 2's modeling and the related animation were done by Softimagec|xsi. In this movie, the producer uses a version of Softimagec|xsi that is packed in the actual HL2 engine base, making the process simple.
In the movie, as for the eyeball real time being to be processed with the engine, being in a state where the eyeball has come out can check with the Softimagec|xsi picture. In addition as for the eyeball with it seems that is explained "this" interview article "eyeball processing" and, it seems that always stares the prayer, when "gaze tracking processing on engine side is done in real time.
Hierzo is een bittorent link voor de filmpjes.
P.S.: Check voortaan ook eens
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