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Texture Coordinates

Started by Badone Jan 6, 2002 at 3:04 PM 2 replies 150+ views

Original Post

Jan 6, 2002 at 3:04 PM

Does anyone have an example of texture coordinates or know a place that does? I have searched and searched through the forums, msdn, and google and all I have found is it showing something with vertices but I don''t have vertices in my game at all. I''m using dx8 with D3DXSprite and I''m trying to get a piece of an image to be put on the screen. I''m doing a tile engine. Thanks!

BenHanson

Jan 6, 2002 at 3:12 PM

http://www.msdn.microsoft.com/library/default.asp?url=/library/en-us/dx8_c/directx_cpp/Graphics/ProgrammersGuide/UsingDirect3D/Textures/Coordinates/TextureCoordinates.asp

Badone

Author

Badone

Jan 6, 2002 at 6:48 PM

I read through that and saw the vertices. But can I get some help on how I use the vertices? The program I have now has no vertices at all. It doesn''t use surfaces, just a directx8 device and d3dxsprite with the d3dxcreatetexturefromfile and d3dxsprite->draw functions.

CaptainJester

101

CaptainJester

Jan 7, 2002 at 8:22 AM

I haven''t tried it yet, but as I understand it, you must draw polys, then apply your sprite as a texture to the poly. There is an article on this site here that explains some of it. There are also articles on Flip Code about this as well. Basically you are using 3D, but telling Direct3D that the vertices you are supplying are already transformed to screen coordinates. You then create to triangles that come together to form a rectangle and apply a texture to it. This is what is called a textured quad.

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