float3 positionWS; // World space position (could be camera-relative)
float2 positionSS; // Screen space pixel position : [0, 1) (with the half-pixel offset)
uint2 unPositionSS; // Screen space pixel index : [0, NumPixels)
uint2 unTileCoord; // Screen space tile index : [0, NumTiles)
float deviceDepth; // Depth from the depth buffer : [0, 1]
float linearDepth; // View space Z coordinate : [Near, Far]
float3 positionWS; // World space position (could be camera-relative)
float2 positionNDC; // Normalized screen space UVs : [0, 1) (with the half-pixel offset)
uint2 positionSS; // Screen space pixel coordinates : [0, NumPixels)
uint2 tileCoord; // Screen space tile coordinates : [0, NumTiles)
float deviceDepth; // Depth from the depth buffer : [0, 1]
float linearDepth; // View space Z coordinate : [Near, Far]
// If a compute shader call this function unPositionSS is an integer usually calculate like: uint2 unPositionSS = groupId.xy * BLOCK_SIZE + groupThreadId.xy
// If a compute shader call this function positionSS is an integer usually calculate like: uint2 positionSS = groupId.xy * BLOCK_SIZE + groupThreadId.xy
PositionInputs GetPositionInput(float2 unPositionSS, float2 invScreenSize, uint2 unTileCoord) // Specify explicit tile coordinates so that we can easily make it lane invariant for compute evaluation.
PositionInputs GetPositionInput(float2 positionSS, float2 invScreenSize, uint2 tileCoord) // Specify explicit tile coordinates so that we can easily make it lane invariant for compute evaluation.
shadow = GetPunctualShadowAttenuation(lightLoopContext.shadowContext, positionWS + offset, N, lightData.shadowIndex, L_dist, posInput.unPositionSS);
shadow = GetPunctualShadowAttenuation(lightLoopContext.shadowContext, positionWS + offset, N, lightData.shadowIndex, L_dist, posInput.positionSS);
#ifdef SHADOWS_SHADOWMASK
// Note: Legacy Unity have two shadow mask mode. ShadowMask (ShadowMask contain static objects shadow and ShadowMap contain only dynamic objects shadow, final result is the minimun of both value)
// and ShadowMask_Distance (ShadowMask contain static objects shadow and ShadowMap contain everything and is blend with ShadowMask based on distance (Global distance setup in QualitySettigns)).
// Calculate screen space coordinates of refracted point in back plane
// This is the clip space position. Warning, do not confuse with the value of positionCS in PackedVarying which is SV_POSITION and store in unPositionSS
// This is the clip space position. Warning, do not confuse with the value of positionCS in PackedVarying which is SV_POSITION and store in positionSS
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7 年前