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(DX) Draw simple primitives

Started by crucifer Apr 24, 2006 at 9:09 PM 2 replies 800+ views

Original Post

Apr 24, 2006 at 9:09 PM

I know how to use VertexBuffers and IndexBuffers ... but often, I need some simple primitives shapes only for testing purpose (ie : a sphere to represent the location of a light I just added). I have heard that there is a way to have DX generate such shapes without having to provide a VB or IB. ... generic parametric shapes. I was unable to find the API to do so ? any suggestions ? anybody knows how ? Thx

crucifer

Apr 24, 2006 at 9:30 PM

bump

thezbuffer

Apr 24, 2006 at 10:03 PM

Mesh Class(managed) and D3DX (native) has methods to create spheres, boxes, polygons, cylinders and teapots.

Native docs for shape drawing functions

Managed docs for Mesh

noNchaoTic

Apr 25, 2006 at 5:44 PM

look under the D3D docs, there are some Create functions to make spheres, teapots and crap, and they return a D3DXMesh object. Which to draw you would just call:

ID3DXMesh::DrawSubset()

Use the index of 0 for most of the mesh's returned by the stock create methods.

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