From fb11c03e7e61339a29a21acbfd584d6d1f7ab996 Mon Sep 17 00:00:00 2001
From: Pavel Rojtberg <rojtberg@gmail.com>
Date: Thu, 29 Aug 2024 02:20:42 +0200
Subject: [PATCH] Samples: standard shadow caster is sufficient

---
 Samples/Emscripten/media/sample.material  | 20 +-------------------
 Samples/ShaderSystem/src/ShaderSystem.cpp |  8 --------
 Samples/Simple/include/Shadows.h          |  8 +-------
 Samples/Simple/include/Terrain.h          |  4 ----
 4 files changed, 2 insertions(+), 38 deletions(-)

diff --git a/Samples/Emscripten/media/sample.material b/Samples/Emscripten/media/sample.material
index ab318477f26..9afd3e26a5e 100644
--- a/Samples/Emscripten/media/sample.material
+++ b/Samples/Emscripten/media/sample.material
@@ -31,22 +31,4 @@ material Examples/Rockwall
 			}
 		}
 	}
-}
-
-material PSSM/shadow_caster
-{
-	technique
-	{
-		// all this will do is write depth
-		pass
-		{
-			fog_override true none
-			depth_bias -1 -1
-
-			rtshader_system
-			{
-				lighting_stage gbuffer depth
-			}
-		}
-	}
-}
+}
\ No newline at end of file
diff --git a/Samples/ShaderSystem/src/ShaderSystem.cpp b/Samples/ShaderSystem/src/ShaderSystem.cpp
index 20e11c9e733..b72b2e4dfc9 100644
--- a/Samples/ShaderSystem/src/ShaderSystem.cpp
+++ b/Samples/ShaderSystem/src/ShaderSystem.cpp
@@ -897,14 +897,6 @@ void Sample_ShaderSystem::applyShadowType(int menuIndex)
         mTrayMgr->removeWidgetFromTray(mDirLightCheckBox);
         mDirLightCheckBox->hide();
 
-        // Disable fog on the caster pass.
-        MaterialPtr passCaterMaterial = MaterialManager::getSingleton().getByName("PSSM/shadow_caster");
-        Pass* pssmCasterPass = passCaterMaterial->getTechnique(0)->getPass(0);
-        pssmCasterPass->setFog(true);
-
-        // Set up caster material - this is just a standard depth/shadow map caster
-        mSceneMgr->setShadowTextureCasterMaterial(passCaterMaterial);
-
         // shadow camera setup
         PSSMShadowCameraSetup* pssmSetup = new PSSMShadowCameraSetup();
         pssmSetup->calculateSplitPoints(3, mCamera->getNearClipDistance(), mSceneMgr->getShadowFarDistance());
diff --git a/Samples/Simple/include/Shadows.h b/Samples/Simple/include/Shadows.h
index a1b39a6650e..3258e25db55 100644
--- a/Samples/Simple/include/Shadows.h
+++ b/Samples/Simple/include/Shadows.h
@@ -31,7 +31,6 @@ using namespace OgreBites;
 
 // New depth shadowmapping
 String CUSTOM_ROCKWALL_MATERIAL("Ogre/DepthShadowmap/Receiver/RockWall");
-String CUSTOM_CASTER_MATERIAL("PSSM/shadow_caster");
 String CUSTOM_ATHENE_MATERIAL("Ogre/DepthShadowmap/Receiver/Athene");
 
 String BASIC_ROCKWALL_MATERIAL("Examples/Rockwall");
@@ -501,7 +500,7 @@ class _OgreSampleClassExport Sample_Shadows : public SdkSample
 
     void updateDepthShadowParams()
     {
-        auto mat = MaterialManager::getSingleton().getByName(CUSTOM_CASTER_MATERIAL);
+        auto mat = MaterialManager::getSingleton().getByName("Ogre/TextureShadowCaster");
         auto pass = mat->getTechniques().back()->getPass(0);
         pass->setDepthBias(-mFixedBiasSlider->getValue(), -mSlopedBiasSlider->getValue());
     }
@@ -527,7 +526,6 @@ class _OgreSampleClassExport Sample_Shadows : public SdkSample
     {
         bool showSliders = false;   
         ShadowMaterial mat = (ShadowMaterial)mMaterialMenu->getSelectionIndex();
-        MaterialPtr themat;
         if (mat != mCurrentMaterial)
         {
             switch(mat)
@@ -547,8 +545,6 @@ class _OgreSampleClassExport Sample_Shadows : public SdkSample
                 mSceneMgr->setShadowTexturePixelFormat(PF_DEPTH16);
                 mSceneMgr->setShadowTechnique(SHADOWTYPE_TEXTURE_ADDITIVE_INTEGRATED);
 
-                themat = MaterialManager::getSingleton().getByName(CUSTOM_CASTER_MATERIAL);
-                mSceneMgr->setShadowTextureCasterMaterial(themat);
                 mSceneMgr->setShadowTextureSelfShadow(true);    
                 // Sort out base materials
                 pPlaneEnt->setMaterialName(CUSTOM_ROCKWALL_MATERIAL);
@@ -569,8 +565,6 @@ class _OgreSampleClassExport Sample_Shadows : public SdkSample
                 mSceneMgr->setShadowTexturePixelFormat(PF_DEPTH16);
                 mSceneMgr->setShadowTechnique(SHADOWTYPE_TEXTURE_ADDITIVE_INTEGRATED);
 
-                themat = MaterialManager::getSingleton().getByName(CUSTOM_CASTER_MATERIAL);
-                mSceneMgr->setShadowTextureCasterMaterial(themat);
                 mSceneMgr->setShadowTextureSelfShadow(true);    
                 // Sort out base materials
                 pPlaneEnt->setMaterialName(CUSTOM_ROCKWALL_MATERIAL + "/PCF");
diff --git a/Samples/Simple/include/Terrain.h b/Samples/Simple/include/Terrain.h
index 79e6c2ed5ad..9fed2f5e848 100644
--- a/Samples/Simple/include/Terrain.h
+++ b/Samples/Simple/include/Terrain.h
@@ -595,9 +595,6 @@ class _OgreSampleClassExport Sample_Terrain : public SdkSample
                 subRenderState->setParameter("split_points",
                                              static_cast<PSSMShadowCameraSetup*>(mPSSMSetup.get())->getSplitPoints());
                 schemRenderState->addTemplateSubRenderState(subRenderState);
-
-                mSceneMgr->setShadowTextureCasterMaterial(
-                    MaterialManager::getSingleton().getByName("PSSM/shadow_caster"));
             }
             else
             {
@@ -607,7 +604,6 @@ class _OgreSampleClassExport Sample_Terrain : public SdkSample
                 mSceneMgr->setShadowTextureConfig(2, 1024, 1024, PF_X8B8G8R8);
                 mSceneMgr->setShadowTextureSelfShadow(false);
                 mSceneMgr->setShadowCasterRenderBackFaces(false);
-                mSceneMgr->setShadowTextureCasterMaterial(MaterialPtr());
             }
 
             matProfile->setReceiveDynamicShadowsPSSM(static_cast<PSSMShadowCameraSetup*>(mPSSMSetup.get()));