導讀:
第一個茶壺是可以運動的紋理,用時間的正弦值和餘弦值加在紋理座標上產生偏移實現的,可以考慮用來實現水面的各種效果
第二個茶壺是顏色和紋理的混合,多層紋理的混合應該也是同樣的道理,就是把顏色值相乘就可以了
AniPass
float4x4 matViewProjection;
float fSinTime0_X;
float fCosTime0_X;
struct VS_INPUT
{
float4 Position : POSITION0;
float2 TexCoord : TEXCOORD0;
};
struct VS_OUTPUT
{
float4 Position : POSITION0;
float2 TexCoord : TEXCOORD0;
};
VS_OUTPUT vs_main( VS_INPUT Input )
{
VS_OUTPUT Output;
Output.Position = mul( Input.Position, matViewProjection );
Output.TexCoord = float2(Input.TexCoord.x + fSinTime0_X, Input.TexCoord.y + fCosTime0_X);
return( Output );
}
sampler Texture0;
struct PS_INPUT
{
float4 Diffuse : COLOR0;
float2 TexCoord : TEXCOORD0;
};
float4 ps_main(PS_INPUT Input) : COLOR0
{
return( tex2D(Texture0, Input.TexCoord) );
}
BlendPass
float4x4 matViewProjection;
float4 teapotPos;
struct VS_INPUT
{
float4 Position : POSITION0;
float2 TexCoord : TEXCOORD0;
};
struct VS_OUTPUT
{
float4 Position : POSITION0;
float2 TexCoord : TEXCOORD0;
};
VS_OUTPUT vs_main( VS_INPUT Input )
{
VS_OUTPUT Output;
Output.Position = mul( Input.Position + teapotPos, matViewProjection );
Output.TexCoord = Input.TexCoord;
return( Output );
}
float fSinTime0_X;
float fCosTime0_X;
sampler Texture0;
float4 ps_main(float2 TexCoord : TEXCOORD0
) : COLOR0
{
float4 texColor = tex2D( Texture0, TexCoord );
texColor = texColor * float4( 1.0f, fSinTime0_X, fCosTime0_X, 1.0f );
return( texColor );
}
Trackback: http://tb.blog.csdn.net/TrackBack.aspx?PostId=1790643
本文轉自
http://blog.csdn.net/xoyojank/archive/2007/09/19/1790643.aspx
第一個shader
發表評論
所有評論
還沒有人評論,想成為第一個評論的人麼? 請在上方評論欄輸入並且點擊發布.