From e8a24969ebb421d5b4f2e4e67965b3a492747c44 Mon Sep 17 00:00:00 2001
From: Egor Yusov <egor.yusov@gmail.com>
Date: Thu, 18 Jul 2019 19:57:13 -0700
Subject: Shadows: added PCF with world-size filter

---
 Shaders/Common/public/BasicStructures.fxh | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'Shaders/Common/public/BasicStructures.fxh')

diff --git a/Shaders/Common/public/BasicStructures.fxh b/Shaders/Common/public/BasicStructures.fxh
index a5a594f..3910fd5 100644
--- a/Shaders/Common/public/BasicStructures.fxh
+++ b/Shaders/Common/public/BasicStructures.fxh
@@ -94,8 +94,11 @@ struct ShadowMapAttribs
 
     BOOL  bIs32BitEVSM                  DEFAULT_VALUE(1);
     int   iFixedFilterSize              DEFAULT_VALUE(3); // 3x3 filter
-    float fDummy0;
-    float fDummy1;
+    float fFilterWorldSize              DEFAULT_VALUE(0);
+    int   iMaxPCFSamplesAlongFilterSide DEFAULT_VALUE(8); // When using world-size filter size, the number
+                                                          // maximum number of PCF samples in one direction.
+                                                          // The total maximum number of samples is 
+                                                          // iMaxPCFSamplesAlongFilterSide * iMaxPCFSamplesAlongFilterSide
 };
 #ifdef CHECK_STRUCT_ALIGNMENT
     CHECK_STRUCT_ALIGNMENT(ShadowMapAttribs);
-- 
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