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Implement shadows rendering to direct light atlas (with Glboal SDF tracing)

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Wojciech Figat
2022-04-14 16:26:45 +02:00
parent 0668a23167
commit d52e70af6c
4 changed files with 61 additions and 13 deletions
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5
Source/Shaders/GlobalSignDistanceField.hlsl
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@@ -6,6 +6,7 @@
#define GLOBAL_SDF_RASTERIZE_CHUNK_SIZE 32
#define GLOBAL_SDF_RASTERIZE_CHUNK_MARGIN 4
#define GLOBAL_SDF_MIP_FLOODS 5
#define GLOBAL_SDF_WORLD_SIZE 60000.0f
// Global SDF data for a constant buffer
struct GlobalSDFData
@@ -61,7 +62,7 @@ float SampleGlobalSDF(const GlobalSDFData data, Texture3D<float> tex[4], float3
{
float distance = data.CascadePosDistance[3].w * 2.0f;
if (distance <= 0.0f)
return 60000;
return GLOBAL_SDF_WORLD_SIZE;
UNROLL
for (uint cascade = 0; cascade < 4; cascade++)
{
@@ -83,7 +84,7 @@ float SampleGlobalSDF(const GlobalSDFData data, Texture3D<float> tex[4], float3
float3 SampleGlobalSDFGradient(const GlobalSDFData data, Texture3D<float> tex[4], float3 worldPosition, out float distance)
{
float3 gradient = float3(0, 0.00001f, 0);
distance = 60000;
distance = GLOBAL_SDF_WORLD_SIZE;
if (data.CascadePosDistance[3].w <= 0.0f)
return gradient;
UNROLL