Merge pull request #12 from RavEngine/baked-light

Baked light sample

Author: Ravbug

.gitignore

@@ -5,3 +5,5 @@ build/
 deps/physx/physx/include/PxConfig.h
 Testing/
 .mayaSwatches
+*.blend1
+*.blend2

RavEngine

@@ -8,7 +8,7 @@ layout(push_constant) uniform UniformBufferObject{
     float time;
 } ubo;
 
-LitOutput frag()
+LitOutput frag(EnvironmentData envData)
 {
     LitOutput fs_out;
 

Samples/Flags/shaders/flag.fsh

@@ -102,7 +102,7 @@ vec3 calcAlt_v2(vec2 uv){
     return resCol;
 }
 
-LitOutput frag()
+LitOutput frag(EnvironmentData envData)
 {
     LitOutput fs_out;
 

Samples/Flags/shaders/flag_special.fsh

@@ -5,7 +5,7 @@ layout(push_constant) uniform UniformBufferObject{
 	float time;
 } ubo;
 
-LitOutput frag()
+LitOutput frag(EnvironmentData envData)
 {
     LitOutput fs_out;
 

Samples/Flags/shaders/grass.fsh

@@ -5,7 +5,7 @@ layout(push_constant) uniform UniformBufferObject{
 	float time;
 } ubo;
 
-LitOutput frag()
+LitOutput frag(EnvironmentData envData)
 {
 	LitOutput fs_out;
 	fs_out.color = vec4(v_position / 200,1);

Samples/Perf_Draw/shaders/instance_colored.fsh

@@ -102,6 +102,21 @@ struct GlassMatInstance : public MaterialInstance {
     GlassMatInstance(Ref<GlassMat> m) : MaterialInstance(m, priority) {}
 };
 
+struct BakedMat : public LitMaterial {
+    BakedMat() : LitMaterial("bakedlight", PipelineOptions{}, { .requiredAttributes = {
+        .position = true,
+        .normal = true,
+        .tangent = true,
+        .bitangent = true,
+        .uv0 = true,
+        .lightmapUV = true
+        } }) {}
+};
+
+struct BakedMatInstance : public MaterialInstance {
+    BakedMatInstance(Ref<BakedMat> m) : MaterialInstance(m) {}
+};
+
 struct Level : public RavEngine::World {
 
     GameObject camRoot, camHeadUD;
@@ -225,22 +240,27 @@ struct Level : public RavEngine::World {
         }
 
         // baked lighting demo
+        constexpr static renderlayer_t bakedLayer = 0b01;
         {
-            auto bakedMat = RavEngine::New<PBRMaterialInstance>(Material::Manager::Get<PBRMaterial>());
+            auto bakedMat = RavEngine::New<PBRMaterialBakedInstance>(Material::Manager::Get<PBRMaterialBaked>());
+            auto lightmapDirTex = Texture::Manager::Get("Lightmap-0_comp_dir.png");
             auto lightmapTex = Texture::Manager::Get("Lightmap-0_comp_light.exr");
+            bakedMat->SetBakedEmissivityTexture(lightmapTex);
+            bakedMat->SetBakedDirectionTexture(lightmapDirTex);
 
-            bakedMat->SetAlbedoColor({1,0,0,1});
             auto bakedCubeObj = Instantiate<GameObject>();
             bakedCubeObj.EmplaceComponent<StaticMesh>(MeshCollectionStaticManager::Get("bakedcube"), bakedMat);
             auto& cubeTransform = bakedCubeObj.GetTransform();
             cubeTransform.SetLocalScale({ 0.01 });
             cubeTransform.SetLocalPosition({-20,1,0});
-
+            bakedCubeObj.SetEntityRenderlayer(bakedLayer); // doesn't exist on any layer the lights illuminate
+#if 0
             auto bakedPlaneObj = Instantiate<GameObject>();
             bakedPlaneObj.EmplaceComponent<StaticMesh>(MeshCollectionStaticManager::Get("bakedplane"), bakedMat);
             auto& planeTransform = bakedPlaneObj.GetTransform();
             planeTransform.SetLocalScale({ 0.01 });
             planeTransform.SetLocalPosition({ -20,1,0 });
+#endif
         }
 
         // wine glasses
@@ -285,7 +305,10 @@ struct Level : public RavEngine::World {
         auto& light = lightsEntity.EmplaceComponent<DirectionalLight>();
         light.SetIntensity(4);
         light.SetCastsShadows(true);
-        lightsEntity.EmplaceComponent<AmbientLight>().SetIntensity(0.2);
+        light.SetIlluminationLayers(~bakedLayer);
+        auto& ambientLight = lightsEntity.EmplaceComponent<AmbientLight>();
+        ambientLight.SetIntensity(0.2);
+        ambientLight.SetIlluminationLayers(~bakedLayer);
 
 
         lightsEntity.GetTransform().LocalRotateDelta(vector3{ deg_to_rad(45), deg_to_rad(45),0 });

Samples/Rendering/main.cpp

@@ -119,7 +119,7 @@ vec3 rockTexture(in vec2 uv) {
 }
 
 
-LitOutput frag()
+LitOutput frag(EnvironmentData envData)
 {
 	LitOutput mat_out;
 

Samples/Rendering/shaders/AsteroidRender.fsh

@@ -7,7 +7,7 @@ vec3 colors[] = {
     vec3(0,0,0.3)
 };
 
-LitOutput frag()
+LitOutput frag(EnvironmentData envData)
 {
 	LitOutput mat_out;