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Direct3D (DirectX 9.0)
Code Samples - Page 9
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Simple Vertex Shader (Cg) |
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Demonstrates how to write a simple vertex shader, or vertex
program using Cg.
Check out the OpenGL source code
page for the OpenGL equivalent of this sample.
Relevant Keywords: CGcontext, CGprogram, CGparameter,
cgCreateContext, cgD3D9GetLatestVertexProfile, cgCreateProgramFromFile,
cgD3D9ValidateVertexDeclaration, cgD3D9LoadProgram, cgGetNamedParameter,
cgGetParameterType, cgD3D9TypeToSize, cgD3D9SetDevice,
cgDestroyProgram, cgDestroyContext, cgD3D9SetUniformMatrix,
cgD3D9SetUniform, cgD3D9BindProgram, CreateVertexDeclaration,
LPDIRECT3DVERTEXDECLARATION9, LPDIRECT3DVERTEXDECLARATION9,
POSITION, COLOR0, uniform, float4x4, float4, mul, and
return.
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Simple
Vertex & Pixel Shader (Cg) |
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Demonstrates how to write both a simple vertex and pixel
shader using Cg.
The two shaders have matching connectors and can be used
simultaneously on the same piece of geometry. The shaders
in this sample don't really do anything useful or neat,
it's meant to be used as a framework or starting place
for experimenting with shaders. Check out the OpenGL source
code page for the OpenGL equivalent of this sample.
Relevant Keywords: cgD3D9GetLatestPixelProfile, cgD3D9GetOptimalOptions,
cgD3D9SetTextureWrapMode, cgD3D9SetSamplerState, cgD3D9BindProgram,
D3DXMatrixTranspose, D3DXMatrixRotationYawPitchRoll,
D3DVERTEXELEMENT9, D3DDECLTYPE_FLOAT3, D3DDECLUSAGE_POSITION,
D3DDECLTYPE_D3DCOLOR, D3DDECLUSAGE_COLOR, D3DDECLTYPE_FLOAT2,
D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_TEXCOORD, D3DSAMP_ADDRESSUD3DSAMP_ADDRESSV,
D3DTADDRESS_WRAP, D3DTEXF_POINT, D3DTEXF_NONE, D3DSAMP_MINFILTER,
D3DSAMP_MAGFILTER, D3DSAMP_MIPFILTER, float2, float3,
float4, uniform, float4x4, sampler2D, and tex2D.
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Lighting Shader (Cg) |
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Demonstrates how to write a vertex shader using Cg,
which calculates simple diffuse lighting for a single light
source. Check out the OpenGL source
code page for the OpenGL equivalent of this sample.
Relevant Keywords: cgD3D9SetUniformMatrix, cgD3D9SetUniform,
SetLight, SetRenderState, LightEnable, SetMaterial, D3DLIGHT9,
D3DMATERIAL9, D3DRS_LIGHTING, LPDIRECT3DVERTEXDECLARATION9,
POSITION, NORMAL, COLOR0, float4, float4x4, uniform,
mul, normalize, dot, and pow.
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Anisotropic Lighting Shader (Cg) |
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Demonstrates how to write a vertex shader using Cg,
which calculates Anisotropic Lighting for a single light
source. The shader uses a texture as a look-up table for
the correct Anisotropic Lighting values by storing the
pre-calculated diffuse values in the texture's RGB components
and specular values in its alpha component. This style
of lighting is very useful for rendering surfaces like
brushed steel where the surface is composed of micro facets
or microscopic scratches that tend to lay parallel or run
in the same direction. Check out the OpenGL source
code page for the OpenGL equivalent of this sample.
Relevant Keywords: D3DXLoadMeshFromX, GetVertexBuffer,
GetIndexBuffer, CloneMeshFVF, Optimize, GetAttributeTable,
LPDIRECT3DVERTEXDECLARATION9, LPDIRECT3DINDEXBUFFER9,
D3DXATTRIBUTERANGE, D3DXMESH_SYSTEMMEM, D3DXMESHOPT_ATTRSORT,
D3DXMESH_WRITEONLY, D3DSAMP_ADDRESSU, D3DTADDRESS_MIRROR,
D3DTOP_MODULATE4X, D3DTA_ALPHAREPLICATE, D3DTSS_COLOROP,
D3DTSS_COLORARG1, D3DTSS_COLORARG2, D3DTA_TEXTURE, POSITION,
NORMAL, TEXCOORD0, float3x3, float3x4, normalize, mul,
and max.
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Vertex
Displacement or Mesh Deformation Shader (Cg) |
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Demonstrates how to performs
vertex displacement on a simple mesh to create a flag waving
animation. Check out the OpenGL source
code page for the OpenGL
equivalent of this sample.
Relevant Keywords: CGcontext, CGprogram, CGparameter,
cgCreateContext, cgD3D9GetLatestVertexProfile, cgCreateProgramFromFile,
cgD3D9ValidateVertexDeclaration, cgD3D9LoadProgram, cgGetNamedParameter,
cgGetParameterType, cgD3D9TypeToSize, cgD3D9SetDevice,
cgDestroyProgram, cgDestroyContext, cgD3D9SetUniformMatrix,
cgD3D9SetUniform, cgD3D9BindProgram, CreateVertexDeclaration,
SetRenderState, D3DRS_FILLMODE, D3DFILL_WIREFRAME, D3DFILL_SOLID,
LPDIRECT3DVERTEXDECLARATION9, LPDIRECT3DVERTEXDECLARATION9,
POSITION, COLOR0, uniform, float4x4, float4, mul, sin,
and return.
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