90 lines
2.6 KiB
HLSL
90 lines
2.6 KiB
HLSL
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//--------------------------------------------------------------------------------------
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// File: BasicHLSL11_PS.hlsl
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//
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// The pixel shader file for the BasicHLSL11 sample.
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//--------------------------------------------------------------------------------------
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//--------------------------------------------------------------------------------------
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// Globals
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//--------------------------------------------------------------------------------------
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cbuffer cbPerObject : register( b0 )
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{
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float4 g_vObjectColor : packoffset( c0 );
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};
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cbuffer cbPerFrame : register( b1 )
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{
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float3 g_vLightDir : packoffset( c0 );
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float g_fAmbient : packoffset( c0.w );
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};
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//--------------------------------------------------------------------------------------
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// Textures and Samplers
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//--------------------------------------------------------------------------------------
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Texture2D g_txDiffuse : register( t0 );
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SamplerState g_samLinear : register( s0 );
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//--------------------------------------------------------------------------------------
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// Input / Output structures
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//--------------------------------------------------------------------------------------
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struct PS_INPUT
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{
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float3 vNormal : NORMAL;
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float2 vTexcoord : TEXCOORD0;
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float4 vPosition : SV_POSITION;
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};
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//--------------------------------------------------------------------------------------
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// Pixel Shader
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//--------------------------------------------------------------------------------------
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float4 PSMain( PS_INPUT Input ) : SV_TARGET
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{
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float4 vDiffuse = g_txDiffuse.Sample( g_samLinear, Input.vTexcoord );
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float fLighting = saturate( dot( g_vLightDir, (Input.vNormal)/length(Input.vNormal) ) );
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//float fLighting = saturate( dot( g_vLightDir, float3(Input.vTexcoord.x,0,0) ) );
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fLighting = max( fLighting, g_fAmbient );
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//fLighting = dot(g_vLightDir,float3(0,1,0));
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return vDiffuse * fLighting;
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}
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struct VS_OUTPUT
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{
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float3 vNormal : NORMAL;
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float2 vTexcoord : TEXCOORD0;
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float4 vPosition : SV_POSITION;
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};
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[maxvertexcount(3)]
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void GSMain(triangle VS_OUTPUT input[3], inout TriangleStream<PS_INPUT> OutputStream)
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{
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PS_INPUT output = (PS_INPUT)0;
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/*
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float3 v1 = input[1].vPosition - input[0].vPosition;
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float3 v2 = input[2].vPosition - input[0].vPosition;
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float3 normal = cross(v1,v2);
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normal = normalize(normal);
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*/
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for(int i = 0; i < 3; i++)
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{
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output.vNormal = input[i].vNormal;
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output.vTexcoord = input[i].vTexcoord;
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output.vPosition = input[i].vPosition;
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OutputStream.Append(output);
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}
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OutputStream.RestartStrip();
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}
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