Basic shadow mapping rendering

src/Engine/Scene/LightEnvironment.cpp

@@ -1,7 +1,7 @@
 #include "LightEnvironment.h"
+#include "Asset/AssetRegistry.h"
 #include "Asset/EnvironmentMapAsset.h"
 #include "Graphics/Graphics.h"
-#include "Asset/AssetRegistry.h"
 
 using namespace Seele;
 
@@ -84,6 +84,17 @@ void LightEnvironment::commit() {
     set->updateTexture("irradianceMap", 0, environment->getIrradianceMap());
     set->updateSampler("irradianceSampler", 0, environmentSampler);
     set->writeChanges();
+
+    while (shadowMapArray.size() < dirs.size()) {
+        shadowMapArray.add(graphics->createTexture2D(TextureCreateInfo{
+            .format = Gfx::SE_FORMAT_D32_SFLOAT,
+            .width = 2048,
+            .height = 2048,
+            .elements = (uint32)dirs.size(),
+            .usage = Gfx::SE_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | Gfx::SE_IMAGE_USAGE_SAMPLED_BIT,
+            .name = "ShadowMap",
+        }));
+    }
 }
 
 const Gfx::PDescriptorLayout LightEnvironment::getDescriptorLayout() const { return layout; }

src/Engine/Scene/LightEnvironment.h

@@ -15,11 +15,15 @@ class LightEnvironment {
     void addPointLight(Component::PointLight pointLight);
     void commit();
     const Gfx::PDescriptorLayout getDescriptorLayout() const;
+    const Component::DirectionalLight& getDirectionalLight(uint32 lightIndex) const { return dirs[lightIndex]; }
     Gfx::PDescriptorSet getDescriptorSet();
     PEnvironmentMapAsset getEnvironmentMap() { return environment; }
+    uint64 getNumDirectionalLights() const { return dirs.size(); }
+    const Array<Gfx::OTexture2D>& getShadowMaps() const { return shadowMapArray; }
 
   private:
     Gfx::OShaderBuffer directionalLights;
+    Array<Gfx::OTexture2D> shadowMapArray;
     Gfx::OShaderBuffer pointLights;
     Array<Component::DirectionalLight> dirs;
     Array<Component::PointLight> points;