HLSL显示贴图

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float4x4 worldViewProj : WorldViewProjection;
 
struct VS_INPUT
{
	float3 pos : POSITION;
	float2 tex : TEXCOORD0;
};
 
struct VS_OUTPUT
{
	float4 pos : POSITION;
	float2 tex : TEXCOORD0;  
};
 
VS_OUTPUT mainVS(VS_INPUT input)
{
	VS_OUTPUT vsOut;	
	vsOut.pos = mul(float4(input.pos, 1), worldViewProj);
	vsOut.tex = input.tex;
//	vsOut.tex.xy = vsOut.pos.zw;
	return vsOut;
}
 
texture tex0;
 
sampler2D sample0 = 
sampler_state
{
	Texture = <tex0>;
/*	MipFilter = LINEAR;
	MinFilter = LINEAR;
	MagFilter = LINEAR;
 
	AddressU = CLAMP;
	AddressV = CLAMP;
*/
};
 
float4 mainPS(float2 tex : TEXCOORD0) : COLOR
{
	return tex2D(sample0, tex);
//	return tex.x / tex.y;
}
 
technique technique0 {
	pass p0 {
		VertexShader = compile vs_3_0 mainVS();
		PixelShader = compile ps_3_0 mainPS();
	}
}