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Direct3D (DirectX 9.0)
Code Samples - Page 7
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Occlusion Query |
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This sample demonstrates how to use Direct3D new occlusion
query feature to find out how many pixels of an object
are actually visible. The sample is basically a simplified
port of the nVIDIA's
OpenGL sample, which covers the same subject. Check
out the OpenGL source code page
for the OpenGL equivalent of this sample.
Relevant Keywords: CreateQuery, GetData, D3DXCreateSphere,
D3DXCreateBox, CloneMeshFVF, GetVertexBuffer, GetNumVertices,
D3DQUERYTYPE_OCCLUSION, Issue, D3DISSUE_BEGIN, D3DISSUE_END,
and LPDIRECT3DQUERY9.
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Emboss Bump Mapping |
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These samples demonstrate how to perform one-pass and
two-pass emboss bump mapping with Direct3D. I've also included
code, which demonstrates how to calculate tangent and binormal
vectors on a per-vertex basis. These special vectors define
the texture space for each vertex, which allows for accurate
texture coordinate shifting during the bump mapping process.
Check out the OpenGL source code
page for the OpenGL equivalent of these samples.
Relevant Keywords: SetTextureStageState, SetRenderState,
SetTexture, D3DXVec3Dot, D3DXVec3Normalize, D3DXMatrixInverse,
GetTransform, D3DXCreateSphere, D3DTSS_TEXCOORDINDEX,
D3DTSS_COLOROP, D3DTSS_COLORARG1, D3DTSS_COLORARG2, D3DTSS_ALPHAOP,
D3DTSS_ALPHAARG1, D3DTSS_ALPHAARG2, D3DTOP_MODULATE,
D3DTA_TEXTURE, D3DTA_DIFFUSE, D3DTOP_SELECTARG1, D3DTA_CURRENT,
D3DTOP_ADDSIGNED, D3DTA_COMPLEMENT, D3DTOP_MODULATE2X,
D3DTA_ALPHAREPLICATE, D3DTOP_DISABLE, and D3DRS_ALPHABLENDENABLE.
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Shadow Volume |
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This code sample demonstrates how to create dynamic shadows
with Direct3D using a stencil shadow volume. The sample
is basically a simplified re-write of the ShadowVolume
sample that ships with the DirectX 9 SDK.
Relevant Keywords: GetBackBuffer, SetRenderState, D3DXLoadMeshFromX,
GetDeviceCaps, Lock, Unlock, D3DSTENCILCAPS_TWOSIDED,
D3DBACKBUFFER_TYPE_MONO, D3DRS_STENCILENABLE, D3DRS_SHADEMODE,
D3DRS_STENCILENABLE, D3DRS_STENCILFUNC, D3DRS_STENCILZFAIL,
D3DRS_STENCILFAIL, D3DRS_STENCILREF, D3DRS_STENCILMASK,
D3DRS_STENCILWRITEMASK, D3DCMP_LESSEQUAL, D3DRS_STENCILPASS,
D3DSTENCILOP_KEEP, D3DRS_ZWRITEENABLE, D3DRS_ALPHABLENDENABLE,
D3DRS_SRCBLEND, D3DRS_DESTBLEND, D3DBLEND_ZERO, D3DBLEND_ONE,
D3DSTENCILOP_KEEP, D3DCMP_ALWAYS, D3DSHADE_FLAT, D3DSTENCILOP_DECR,
D3DRS_CULLMODE, D3DCULL_NONE, D3DCULL_CCW, D3DSHADE_GOURAUD,
D3DRS_FILLMODE, D3DFILL_WIREFRAME, D3DFILL_SOLID, and
StencilCaps.
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