GPU Pro 6

1. Real-Time Lighting via Light Linked List 193

float4 d4_00 = g_txDepth . GatherRed( g_samPoint , screen_uvs , int2 ( ←

3, 3));

float4 d4_01 = g_txDepth . GatherRed( g_samPoint , screen_uvs , int2 ( ←

1, 3));

float4 d4_10 = g_txDepth . GatherRed( g_samPoint , screen_uvs , int2 ( ←

3, 1));

float4 d4_11 = g_txDepth . GatherRed( g_samPoint , screen_uvs , int2 ( ←

1, 1));

d4_max = max ( d4_max , max ( d4_00 , max ( d4_01 , max ( d4_10 , ←

d4_11 ))));

}

// Calculate the final max depth

float depth_max = max ( d4_max . x , max ( d4_max . y , max( d4_max . z , ←

d4_max . w )));

1.6 Conclusion

The Light Linked List algorithm helped us to drastically simplify ...