每天30分钟看Shader--(2)《Shaders for Game Programmers and Artists》Chapter4 Getting Started, Your First Shaders

每天30分钟看Shader--(2)《Shaders for Game Programmers and Artists》Chapter4 Getting Started, Your First Shaders

Seeing Double

一图解千言

就是在第2个pass里面加了个位移





Exercise 1: ANIMATING A TEXTURE

纹理真的动起来了耶! ^_^




Exercise 2: BLENDING TWO TEXTURES
混合两张纹理，现在像经历过硝烟



注意事项：
       1）VS_INPUT里面只有一个纹理坐标，没有TEXCOORD1;
      
pixel shader

sampler2D Texture0;
sampler2D Texture1;

struct  PS_INPUT 
{
   float2 Texcoord : TEXCOORD0;
   float2 Texcoord1 : TEXCOORD1;
};

float4 ps_main( PS_INPUT Input ) : COLOR0
{
    return tex2D( Texture0, Input.Texcoord ) *  tex2D(Texture1, Input.Texcoord1);
   
}

两个颜色乘起来就行了