1 | float REDUCED_CUBEMAP_SIZE;
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2 | int CUBEMAP_SIZE = 128;
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3 | int RATE = 32;
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4 |
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5 | float4 readCubeMap(samplerCUBE cm, float3 coord)
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6 | {
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7 | float4 color = texCUBElod( cm, float4(coord.xy, -coord.z, 1) );
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8 | color.a = 1;
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9 | return color;
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10 | }
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11 |
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12 | float readDistanceCubeMap(samplerCUBE dcm, float3 coord)
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13 | {
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14 | float dist = texCUBElod(dcm, float4(coord.xy, - coord.z, 1)).r;
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15 | if(dist == 0) dist = 1000000; ///sky
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16 | return dist;
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17 | }
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18 |
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19 |
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20 | /////
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21 | /// Reduce cube map shader
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22 | /////
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23 | struct MPos_OUT
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24 | {
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25 | float4 VPos : POSITION;
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26 | float4 MPos : TEXCOORD0;
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27 | };
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28 |
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29 | float4 ReduceCubeMap_PS(MPos_OUT IN,
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30 | uniform int nFace,
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31 | uniform samplerCUBE EnvironmentMapSampler : register(s0) ) : COLOR
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32 | {
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33 | RATE = 32;
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34 | CUBEMAP_SIZE = 128;
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35 | float4 color = 0;
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36 | float3 dir;
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37 |
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38 | for (int i = 0; i < RATE; i++)
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39 | for (int j = 0; j < RATE; j++)
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40 | {
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41 | float2 pos;
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42 | pos.x = IN.mPos.x + (2*i + 1)/(float)CUBEMAP_SIZE;
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43 | pos.y = IN.mPos.y - (2*j + 1)/(float)CUBEMAP_SIZE; // y=-u
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44 |
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45 | // "scrambling"
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46 | if (nFace == 0) dir = float3(1, pos.y, -pos.x);
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47 | if (nFace == 1) dir = float3(-1, pos.y, pos.x);
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48 | if (nFace == 2) dir = float3(pos.x, 1, -pos.y);
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49 | if (nFace == 3) dir = float3(pos.x, -1, pos.y);
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50 | if (nFace == 4) dir = float3(pos.x, pos.y, 1);
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51 | if (nFace == 5) dir = float3(-pos.x, pos.y,-1);
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52 |
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53 | color += texCUBE( EnvironmentMapSampler, dir);
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54 | }
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55 |
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56 | return color / (RATE*RATE);
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57 | }
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58 |
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59 |
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60 | /////////////////////
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61 | ///// Diffuse
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62 | ///////////////////
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63 |
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64 | float4 GetContibution(float3 L, float3 L1, float3 L2, float3 L3, float3 L4, float3 pos, float3 N, samplerCUBE cubemap)
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65 | {
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66 | float d;
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67 | //d = texCUBE(cubemap, L).a;
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68 | d = readDistanceCubeMap(cubemap, L1).r;
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69 | L1 = d * normalize(L1);
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70 | d = readDistanceCubeMap(cubemap, L2).r;
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71 | L2 = d * normalize(L2);
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72 | d = readDistanceCubeMap(cubemap, L3).r;
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73 | L3 = d * normalize(L3);
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74 | d = readDistanceCubeMap(cubemap, L4).r;
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75 | L4 = d * normalize(L4);
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76 |
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77 |
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78 | float3 r1 = normalize(L1 - pos);
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79 | float3 r2 = normalize(L2 - pos);
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80 | float3 r3 = normalize(L3 - pos);
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81 | float3 r4 = normalize(L4 - pos);
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82 | /*
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83 | float tri1 = acos(dot(r1, r2)) * dot(cross(r1, r2), N);
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84 | float tri2 = acos(dot(r2, r3)) * dot(cross(r2, r3), N);
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85 | float tri3 = acos(dot(r3, r4)) * dot(cross(r3, r4), N);
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86 | float tri4 = acos(dot(r4, r1)) * dot(cross(r4, r1), N);
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87 | */
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88 | float3 crossP = cross(r1, r2);
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89 | float r = length(crossP);
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90 | float dd = dot(r1,r2);
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91 | float tri1 = acos(dd) * dot(crossP/r, N);
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92 |
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93 | crossP = cross(r2, r3);
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94 | r = length(crossP);
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95 | dd = dot(r1,r2);
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96 | float tri2 = acos(dd) * dot(crossP/r, N);
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97 |
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98 | crossP = cross(r3, r4);
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99 | r = length(crossP);
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100 | dd = dot(r1,r2);
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101 | float tri3 = acos(dd) * dot(crossP/r, N);
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102 |
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103 | crossP = cross(r4, r1);
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104 | r = length(crossP);
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105 | dd = dot(r1,r2);
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106 | float tri4= acos(dd) * dot(crossP/r, N);
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107 |
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108 |
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109 | return max(tri1 + tri2 + tri3 + tri4, 0);
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110 | //return tri1 + tri2 + tri3 + tri4;
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111 | }
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112 |
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113 |
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114 | struct vertOUT
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115 | {
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116 | float4 hPos :POSITION;
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117 | float3 wPos :TEXCOORD1;
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118 | float2 texCoord :TEXCOORD0;
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119 | float3 mNormal :TEXCOORD2;
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120 | };
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121 |
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122 | vertOUT DiffuseVS(float4 position : POSITION,
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123 | float3 normal : NORMAL,
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124 | half3 tangent : TEXCOORD1,
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125 | float2 texCoord : TEXCOORD0,
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126 | uniform float4x4 worldViewProj,
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127 | uniform float4x4 worldI,
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128 | uniform float4x4 world)
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129 | {
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130 | vertOUT OUT;
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131 | OUT.hPos = mul(worldViewProj, position);
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132 | OUT.wPos = mul(world, position).xyz;
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133 | OUT.mNormal = mul(normal, worldI);
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134 | //OUT.mNormal = normal;
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135 | OUT.texCoord = texCoord;
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136 | return OUT;
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137 | }
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138 |
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139 |
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140 | float4 DiffusePS( vertOUT IN,
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141 | uniform float3 cameraPos,
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142 | uniform float3 lastCenter, //LI//
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143 | uniform samplerCUBE SmallEnvMapSampler : register(s0),
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144 | uniform samplerCUBE DistanceEnvMapSampler : register(s1)
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145 | ) : COLOR0
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146 | {
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147 | float M = 4;
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148 |
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149 | float3 N = IN.mNormal;
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150 | N = normalize( N );
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151 | float3 pos = IN.wPos - lastCenter;
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152 |
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153 | //return float4(N,1)+ lastCenter.x*0.000001;
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154 | // return float4(N,1)+ lastCenter.x*0.000001;
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155 | // return readCubeMap(SmallEnvMapSampler, pos) + lastCenter.x*0.000001;
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156 |
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157 | float4 I = 0;
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158 | float3 L1, L2, L3, L4, L;
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159 | float4 Le;
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160 | float width = 1.0 / M;
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161 | float width2 = width * 2;
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162 | float d;
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163 |
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164 | for (float x = 1; x < M; x++)
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165 | for (float y = 1; y < M; y++)
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166 | {
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167 | float2 p, tpos;
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168 | tpos.x = x * width;
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169 | tpos.y = y * width;
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170 |
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171 | p = tpos.xy;
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172 | p = 2.0 * p - 1.0; //-1..1
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173 |
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174 | L1 = float3(p.x - width, p.y - width, 1);
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175 | L2 = float3(p.x + width, p.y - width, 1);
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176 | L3 = float3(p.x + width, p.y + width, 1);
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177 | L4 = float3(p.x - width, p.y + width, 1);
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178 | L = float3(p.x, p.y, 1);
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179 | Le = float4(readCubeMap(SmallEnvMapSampler, L).rgb, 1);
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180 |
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181 | I += 0.5 * Le * GetContibution( L, L1, L2, L3, L4, pos, N, DistanceEnvMapSampler);
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182 |
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183 | }
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184 | /*
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185 | for (float x = 1; x < M; x++)
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186 | for (float y = 1; y < M; y++)
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187 | {
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188 | float2 p, tpos;
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189 | tpos.x = x * width; // 0..1
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190 | tpos.y = y * width; // 0..1
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191 |
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192 | p = tpos.xy;
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193 | p = 2.0 * p - 1.0; //-1..1
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194 |
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195 | L4 = float3(p.x - width, p.y - width, -1);
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196 | L3 = float3(p.x + width, p.y - width, -1);
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197 | L2 = float3(p.x + width, p.y + width, -1);
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198 | L1 = float3(p.x - width, p.y + width, -1);
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199 | L = float3(p.x, p.y, -1);
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200 | Le = float4(readCubeMap(SmallEnvMapSampler, L).rgb, 1);
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201 |
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202 | I += 0.5 * Le * GetContibution( L, L1, L2, L3, L4, pos, N, DistanceEnvMapSampler);
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203 | }
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204 |
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205 | for (float x = 1; x < M; x++)
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206 | for (float y = 1; y < M; y++)
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207 | {
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208 | float2 p, tpos;
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209 | tpos.x = x * width; // 0..1
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210 | tpos.y = y * width; // 0..1
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211 |
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212 | p = tpos.xy;
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213 | p = 2.0 * p - 1.0; //-1..1
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214 |
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215 | L4 = float3(p.x - width, 1, p.y - width);
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216 | L3 = float3(p.x + width, 1, p.y - width);
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217 | L2 = float3(p.x + width, 1, p.y + width);
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218 | L1 = float3(p.x - width, 1, p.y + width);
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219 | L = float3(p.x, 1, p.y);
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220 | Le = float4(readCubeMap(SmallEnvMapSampler, L).rgb, 1);
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221 |
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222 | I += 0.5 * Le * GetContibution( L, L1, L2, L3, L4, pos, N, DistanceEnvMapSampler);
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223 | }
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224 |
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225 | for (float x = 1; x < M; x++)
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226 | for (float y = 1; y < M; y++)
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227 | {
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228 | float2 p, tpos;
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229 | tpos.x = x * width; // 0..1
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230 | tpos.y = y * width; // 0..1
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231 |
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232 | p = tpos.xy;
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233 | p = 2.0 * p - 1.0; //-1..1
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234 |
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235 | L1 = float3(p.x - width, -1, p.y - width);
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236 | L2 = float3(p.x + width, -1, p.y - width);
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237 | L3 = float3(p.x + width, -1, p.y + width);
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238 | L4 = float3(p.x - width, -1, p.y + width);
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239 | L = float3(p.x, -1, p.y);
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240 | Le = float4(readCubeMap(SmallEnvMapSampler, L).rgb, 1);
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241 |
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242 | I += 0.5 * Le * GetContibution( L, L1, L2, L3, L4, pos, N, DistanceEnvMapSampler);
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243 | }
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244 |
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245 | for (float x = 1; x < M; x++)
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246 | for (float y = 1; y < M; y++)
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247 | {
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248 | float2 p, tpos;
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249 | tpos.x = x * width; // 0..1
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250 | tpos.y = y * width; // 0..1
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251 |
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252 | p = tpos.xy;
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253 | p = 2.0 * p - 1.0; //-1..1
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254 |
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255 | L1 = float3(1, p.x - width, p.y - width);
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256 | L2 = float3(1, p.x + width, p.y - width);
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257 | L3 = float3(1, p.x + width, p.y + width);
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258 | L4 = float3(1, p.x - width, p.y + width);
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259 | L = float3(1, p.x, p.y);
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260 | Le = float4(readCubeMap(SmallEnvMapSampler, L).rgb, 1);
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261 |
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262 | I += 0.5 * Le * GetContibution( L, L1, L2, L3, L4, pos, N, DistanceEnvMapSampler);
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263 | }
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264 |
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265 | for (float x = 1; x < M; x++)
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266 | for (float y = 1; y < M; y++)
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267 | {
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268 | float2 p, tpos;
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269 | tpos.x = x * width; // 0..1
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270 | tpos.y = y * width; // 0..1
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271 |
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272 | p = tpos.xy;
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273 | p = 2.0 * p - 1.0; //-1..1
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274 |
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275 | L4 = float3(-1, p.x - width, p.y - width);
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276 | L3 = float3(-1, p.x + width, p.y - width);
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277 | L2 = float3(-1, p.x + width, p.y + width);
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278 | L1 = float3(-1, p.x - width, p.y + width);
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279 | L = float3(-1, p.x, p.y);
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280 | Le = float4(readCubeMap(SmallEnvMapSampler, L).rgb, 1);
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281 |
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282 | I += 0.5 * Le * GetContibution( L, L1, L2, L3, L4, pos, N, DistanceEnvMapSampler);
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283 | } */
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284 | float kd = 0.5;
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285 | return kd * I;
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286 | }
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287 |
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288 | struct vertOUTBump
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289 | {
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290 | float4 hPos :POSITION;
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291 | float3 wPos :TEXCOORD1;
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292 | float2 texCoord :TEXCOORD0;
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293 | float3 mNormal :TEXCOORD2;
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294 | float3 tangent :TEXCOORD3;
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295 | float3 binormal :TEXCOORD4;
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296 | };
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297 |
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298 | vertOUTBump DiffuseBumpVS(float4 position : POSITION,
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299 | float3 normal : NORMAL,
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300 | half3 tangent : TEXCOORD1,
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301 | float2 texCoord : TEXCOORD0,
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302 | uniform float4x4 worldViewProj,
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303 | uniform float4x4 world)
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304 | {
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305 | vertOUTBump OUT;
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306 | OUT.hPos = mul(worldViewProj, position);
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307 | OUT.wPos = mul(world, position).xyz;
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308 | OUT.mNormal = normal;
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309 | OUT.tangent = tangent;
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310 | OUT.texCoord = texCoord;
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311 | OUT.binormal = cross(tangent, normal);
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312 | return OUT;
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313 | }
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314 |
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315 | float4 DiffuseBumpPS( vertOUTBump IN,
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316 | uniform float3 cameraPos,
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317 | uniform float3 lastCenter, //LI//
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318 | uniform samplerCUBE SmallEnvMapSampler : register(s0),
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319 | uniform samplerCUBE DistanceEnvMapSampler : register(s1),
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320 | uniform sampler2D NormalMap : register(s2),
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321 | uniform float4x4 worldI
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322 | ) : COLOR0
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323 | {
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324 | float M = 4;
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325 |
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326 | float3 N = IN.mNormal;
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327 | N = normalize( N );
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328 | float3x3 TangentToModel = float3x3(IN.tangent, IN.binormal, N);
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329 |
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330 | half3 tNormal = tex2D(NormalMap, IN.texCoord).rgb;
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331 |
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332 | N = mul(tNormal, TangentToModel );
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333 |
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334 | N = normalize( N );
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335 | N = mul(N, worldI);
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336 |
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337 | float3 pos = IN.wPos - lastCenter;
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338 |
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339 | //return float4(N,1)+ lastCenter.x*0.000001;
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340 | // return readCubeMap(SmallEnvMapSampler, pos) + lastCenter.x*0.000001;
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341 |
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342 | float4 I = 0;
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343 | float3 L1, L2, L3, L4, L;
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344 | float4 Le;
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345 | float width = 1.0 / M;
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346 | float width2 = width * 2;
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347 | float d;
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348 | /*
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349 | for (float x = 0.5; x < M; x++)
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350 | for (float y = 0.5; y < M; y++)
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351 | {
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352 | float2 p, tpos;
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353 | tpos.x = x * width;
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354 | tpos.y = y * width;
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355 |
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356 | p = tpos.xy;
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357 | p = 2.0 * p - 1.0; //-1..1
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358 |
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359 | L1 = float3(p.x - width, p.y - width, 1);
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360 | L2 = float3(p.x + width, p.y - width, 1);
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361 | L3 = float3(p.x + width, p.y + width, 1);
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362 | L4 = float3(p.x - width, p.y + width, 1);
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363 | L = float3(p.x, p.y, 1);
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364 | Le = float4(readCubeMap(SmallEnvMapSampler, L).rgb, 1);
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365 |
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366 | I += 0.5 * Le * GetContibution( L, L1, L2, L3, L4, pos, N, DistanceEnvMapSampler);
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367 |
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368 | }
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369 |
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370 | for (float x = 0.5; x < M; x++)
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371 | for (float y = 0.5; y < M; y++)
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372 | {
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373 | float2 p, tpos;
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374 | tpos.x = x * width; // 0..1
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375 | tpos.y = y * width; // 0..1
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376 |
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377 | p = tpos.xy;
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378 | p = 2.0 * p - 1.0; //-1..1
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379 |
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380 | L4 = float3(p.x - width, p.y - width, -1);
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381 | L3 = float3(p.x + width, p.y - width, -1);
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382 | L2 = float3(p.x + width, p.y + width, -1);
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383 | L1 = float3(p.x - width, p.y + width, -1);
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384 | L = float3(p.x, p.y, -1);
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385 | Le = float4(readCubeMap(SmallEnvMapSampler, L).rgb, 1);
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386 |
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387 | I += 0.5 * Le * GetContibution( L, L1, L2, L3, L4, pos, N, DistanceEnvMapSampler);
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388 | }
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389 |
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390 | for (float x = 0.5; x < M; x++)
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391 | for (float y = 0.5; y < M; y++)
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392 | {
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393 | float2 p, tpos;
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394 | tpos.x = x * width; // 0..1
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395 | tpos.y = y * width; // 0..1
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396 |
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397 | p = tpos.xy;
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398 | p = 2.0 * p - 1.0; //-1..1
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399 |
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400 | L4 = float3(p.x - width, 1, p.y - width);
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401 | L3 = float3(p.x + width, 1, p.y - width);
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402 | L2 = float3(p.x + width, 1, p.y + width);
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403 | L1 = float3(p.x - width, 1, p.y + width);
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404 | L = float3(p.x, 1, p.y);
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405 | Le = float4(readCubeMap(SmallEnvMapSampler, L).rgb, 1);
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406 |
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407 | I += 0.5 * Le * GetContibution( L, L1, L2, L3, L4, pos, N, DistanceEnvMapSampler);
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408 | }
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409 |
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410 | for (float x = 0.5; x < M; x++)
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411 | for (float y = 0.5; y < M; y++)
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412 | {
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413 | float2 p, tpos;
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414 | tpos.x = x * width; // 0..1
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415 | tpos.y = y * width; // 0..1
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416 |
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417 | p = tpos.xy;
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418 | p = 2.0 * p - 1.0; //-1..1
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419 |
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420 | L1 = float3(p.x - width, -1, p.y - width);
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421 | L2 = float3(p.x + width, -1, p.y - width);
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422 | L3 = float3(p.x + width, -1, p.y + width);
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423 | L4 = float3(p.x - width, -1, p.y + width);
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424 | L = float3(p.x, -1, p.y);
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425 | Le = float4(readCubeMap(SmallEnvMapSampler, L).rgb, 1);
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426 |
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427 | I += 0.5 * Le * GetContibution( L, L1, L2, L3, L4, pos, N, DistanceEnvMapSampler);
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428 | }
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429 |
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430 | for (float x = 0.5; x < M; x++)
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431 | for (float y = 0.5; y < M; y++)
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432 | {
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433 | float2 p, tpos;
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434 | tpos.x = x * width; // 0..1
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435 | tpos.y = y * width; // 0..1
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436 |
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437 | p = tpos.xy;
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438 | p = 2.0 * p - 1.0; //-1..1
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439 |
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440 | L1 = float3(1, p.x - width, p.y - width);
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441 | L2 = float3(1, p.x + width, p.y - width);
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442 | L3 = float3(1, p.x + width, p.y + width);
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443 | L4 = float3(1, p.x - width, p.y + width);
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444 | L = float3(1, p.x, p.y);
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445 | Le = float4(readCubeMap(SmallEnvMapSampler, L).rgb, 1);
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446 |
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447 | I += 0.5 * Le * GetContibution( L, L1, L2, L3, L4, pos, N, DistanceEnvMapSampler);
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448 | }
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449 |
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450 | for (float x = 0.5; x < M; x++)
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451 | for (float y = 0.5; y < M; y++)
|
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452 | {
|
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453 | float2 p, tpos;
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454 | tpos.x = x * width; // 0..1
|
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455 | tpos.y = y * width; // 0..1
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456 |
|
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457 | p = tpos.xy;
|
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458 | p = 2.0 * p - 1.0; //-1..1
|
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459 |
|
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460 | L4 = float3(-1, p.x - width, p.y - width);
|
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461 | L3 = float3(-1, p.x + width, p.y - width);
|
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462 | L2 = float3(-1, p.x + width, p.y + width);
|
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463 | L1 = float3(-1, p.x - width, p.y + width);
|
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464 | L = float3(-1, p.x, p.y);
|
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465 | Le = float4(readCubeMap(SmallEnvMapSampler, L).rgb, 1);
|
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466 |
|
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467 | I += 0.5 * Le * GetContibution( L, L1, L2, L3, L4, pos, N, DistanceEnvMapSampler);
|
---|
468 | } */
|
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469 | float kd = 0.3;
|
---|
470 | return kd * I;
|
---|
471 | }
|
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472 |
|
---|
473 | float4 P2PContr(float3 N, float3 Nl, float3 pos, float3 L, samplerCUBE cubemap, samplerCUBE distmap)
|
---|
474 | {
|
---|
475 | Nl = normalize(Nl);
|
---|
476 | L = normalize(L);
|
---|
477 | float4 Le = readCubeMap(cubemap, L);
|
---|
478 | float d = readDistanceCubeMap(distmap, L);
|
---|
479 | float3 Lpos = L * d;
|
---|
480 | float3 Ldir = Lpos - pos;
|
---|
481 | float dist = 4 * dot(Ldir, Ldir);
|
---|
482 | Ldir = normalize(Ldir);
|
---|
483 |
|
---|
484 | return Le * (max(dot(N, Ldir),0) * dot(Nl, -1 * Ldir)) / dist;
|
---|
485 | }
|
---|
486 |
|
---|
487 | float4 EnvMapDiffuseP2PPS( vertOUT IN,
|
---|
488 | uniform float3 lastCenter, //LI//
|
---|
489 | uniform samplerCUBE SmallEnvMapSampler : register(s0),
|
---|
490 | uniform samplerCUBE DistanceEnvMapSampler : register(s1)) : COLOR
|
---|
491 | {
|
---|
492 | float M = 4.0;
|
---|
493 |
|
---|
494 | float3 N = IN.mNormal;
|
---|
495 | N = normalize( N );
|
---|
496 | float3 pos = IN.wPos - lastCenter;
|
---|
497 |
|
---|
498 | float4 I = 0;
|
---|
499 | float3 L;
|
---|
500 | float4 Le;
|
---|
501 | float width = 1.0 / M;
|
---|
502 | float d;
|
---|
503 |
|
---|
504 | float kd = 0.3;
|
---|
505 |
|
---|
506 | //return kd * readCubeMap(SmallEnvMapSampler, N) + lastCenter.x * 0.00000001;
|
---|
507 |
|
---|
508 | for (float x = 0.5; x < M; x++)
|
---|
509 | for (float y = 0.5; y < M; y++)
|
---|
510 | {
|
---|
511 | float2 p, tpos;
|
---|
512 | tpos.x = x * width;
|
---|
513 | tpos.y = y * width;
|
---|
514 |
|
---|
515 | p = tpos.xy;
|
---|
516 | p = 2.0 * p - 1.0; //-1..1
|
---|
517 |
|
---|
518 | I += P2PContr(N, float3(0,0,-1), pos, float3(p.x, p.y, 1), SmallEnvMapSampler, DistanceEnvMapSampler);
|
---|
519 | I += P2PContr(N, float3(0,0,1), pos, float3(-p.x, p.y, -1), SmallEnvMapSampler, DistanceEnvMapSampler);
|
---|
520 | I += P2PContr(N, float3(-1,0,0), pos, float3(1, p.y, -p.x), SmallEnvMapSampler, DistanceEnvMapSampler);
|
---|
521 | I += P2PContr(N, float3(1,0,0), pos, float3(-1, p.y, p.x), SmallEnvMapSampler, DistanceEnvMapSampler);
|
---|
522 | I += P2PContr(N, float3(0,-1,0), pos, float3(p.x, 1, -p.y), SmallEnvMapSampler, DistanceEnvMapSampler);
|
---|
523 | I += P2PContr(N, float3(0,1,0), pos, float3(p.x, -1, p.y), SmallEnvMapSampler, DistanceEnvMapSampler);
|
---|
524 | }
|
---|
525 |
|
---|
526 | return kd * I;
|
---|
527 | } |
---|