113 lines
2.1 KiB
HLSL
113 lines
2.1 KiB
HLSL
cbuffer cbEveryFrame
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{
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matrix View;
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matrix Projection;
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float4 ViewEye;
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float4 LightPos[2];
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float4 LightDir[2];
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float4 LightColor[2];
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};
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cbuffer cbMultiplePerFrame
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{
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matrix World;
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};
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cbuffer cbPerMaterial
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{
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float4 Emission;
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float4 Ambient;
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float4 Diffuse;
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float4 Specular;
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float Shininess;
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int4 TextureChannel;
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};
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Texture2D TexEmission;
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Texture2D TexAmbient;
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Texture2D TexDiffuse;
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Texture2D TexSpecular;
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SamplerState samLinear {
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Filter = MIN_MAG_MIP_LINEAR;
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AddressU = Wrap;
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AddressV = Wrap;
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};
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struct VS_INPUT
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{
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float3 Pos : POSITION;
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float3 Norm : NORMAL;
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float2 Tex : TEXCOORD0;
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};
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struct PS_INPUT
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{
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float4 Pos : SV_POSITION;
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float3 Norm : NORMAL;
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float2 Tex : TEXCOORD0;
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float4 WPos : POSITION;
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};
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PS_INPUT VS(VS_INPUT input)
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{
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PS_INPUT output;
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float4 world_pos = mul(float4(input.Pos, 1), World);
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output.Pos = mul(world_pos, View);
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output.Pos = mul(output.Pos, Projection);
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output.Norm = mul(input.Norm, (float3x3)World);
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output.Tex = input.Tex;
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output.WPos = world_pos;
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return output;
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}
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float4 PS(PS_INPUT input) : SV_Target
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{
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float3 normal = normalize(input.Norm);
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float3 view_dir = normalize(ViewEye.xyz - input.WPos.xyz);
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float3 color = Emission.xyz;
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for (int i = 0; i < 2; i++) {
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float3 light_dir = normalize(-LightDir[i].xyz);
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float diffuse_intensity = max(dot(normal, light_dir), 0.0);
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float distance = length(LightPos[i].xyz - input.WPos.xyz);
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float attenuation = 1.0 / (0.02 * distance * distance);
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color += Diffuse.xyz * diffuse_intensity * LightColor[i].xyz * attenuation;
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}
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return float4(color.xyz, 1);
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}
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BlendState DisableBlending
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{
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BlendEnable[0] = FALSE;
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};
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DepthStencilState EnableDepth
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{
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DepthEnable = TRUE;
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DepthWriteMask = ALL;
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};
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technique10 Blinn
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{
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pass P0
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{
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SetVertexShader(CompileShader(vs_4_0, VS()));
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SetGeometryShader(NULL);
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SetPixelShader(CompileShader(ps_4_0, PS()));
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SetBlendState(DisableBlending, float4(0.0, 0.0, 0.0, 0.0), 0xffffffff);
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SetDepthStencilState(EnableDepth, 0);
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}
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}
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