fix entities shading

src/graphics/render/MainBatch.hpp

@@ -18,13 +18,15 @@ struct MainBatchVertex {
     glm::vec3 position;
     glm::vec2 uv;
     glm::vec3 tint;
-    std::array<uint8_t,4> color;
+    std::array<uint8_t, 4> color;
+    std::array<uint8_t, 4> normal;
 
     static constexpr VertexAttribute ATTRIBUTES[] = {
         {VertexAttribute::Type::FLOAT, false, 3},
         {VertexAttribute::Type::FLOAT, false, 2},
         {VertexAttribute::Type::FLOAT, false, 3},
         {VertexAttribute::Type::UNSIGNED_BYTE, true, 4},
+        {VertexAttribute::Type::UNSIGNED_BYTE, true, 4},
         {{}, 0}};
 };
 
@@ -61,7 +63,8 @@ public:
         const glm::vec3& pos,
         const glm::vec2& uv,
         const glm::vec4& light,
-        const glm::vec3& tint
+        const glm::vec3& tint,
+        const glm::vec3& normal
     ) {
         MainBatchVertex* buffer = this->buffer.get();
         buffer[index].position = pos;
@@ -72,6 +75,10 @@ public:
         buffer[index].color[1] = static_cast<uint8_t>(light.g * 255);
         buffer[index].color[2] = static_cast<uint8_t>(light.b * 255);
         buffer[index].color[3] = static_cast<uint8_t>(light.a * 255);
+
+        buffer[index].normal[0] = static_cast<uint8_t>(normal.x * 128 + 127);
+        buffer[index].normal[1] = static_cast<uint8_t>(normal.y * 128 + 127);
+        buffer[index].normal[2] = static_cast<uint8_t>(normal.z * 128 + 127);
         index++;
     }
 
@@ -89,38 +96,44 @@ public:
             pos - right * size.x * 0.5f - up * size.y * 0.5f,
             {subregion.u1, subregion.v1},
             light,
-            tint
+            tint,
+            glm::cross(up, right)
         );
         vertex(
             pos + right * size.x * 0.5f - up * size.y * 0.5f,
             {subregion.u2, subregion.v1},
             light,
-            tint
+            tint,
+            glm::cross(up, right)
         );
         vertex(
             pos + right * size.x * 0.5f + up * size.y * 0.5f,
             {subregion.u2, subregion.v2},
             light,
-            tint
+            tint,
+            glm::cross(up, right)
         );
 
         vertex(
             pos - right * size.x * 0.5f - up * size.y * 0.5f,
             {subregion.u1, subregion.v1},
             light,
-            tint
+            tint,
+            glm::cross(up, right)
         );
         vertex(
             pos + right * size.x * 0.5f + up * size.y * 0.5f,
             {subregion.u2, subregion.v2},
             light,
-            tint
+            tint,
+            glm::cross(up, right)
         );
         vertex(
             pos - right * size.x * 0.5f + up * size.y * 0.5f,
             {subregion.u1, subregion.v2},
             light,
-            tint
+            tint,
+            glm::cross(up, right)
         );
     }
 

src/graphics/render/ModelBatch.cpp

@@ -57,12 +57,14 @@ ModelBatch::ModelBatch(
 
 ModelBatch::~ModelBatch() = default;
 
-void ModelBatch::draw(const model::Mesh& mesh, const glm::mat4& matrix, 
-                      const glm::mat3& rotation, glm::vec3 tint,
-                      const texture_names_map* varTextures,
-                      bool backlight) {
-
-
+void ModelBatch::draw(
+    const model::Mesh& mesh,
+    const glm::mat4& matrix,
+    const glm::mat3& rotation,
+    glm::vec3 tint,
+    const texture_names_map* varTextures,
+    bool backlight
+) {
     setTexture(mesh.texture, varTextures);
     size_t vcount = mesh.vertices.size();
     const auto& vertexData = mesh.vertices.data();
@@ -78,12 +80,12 @@ void ModelBatch::draw(const model::Mesh& mesh, const glm::mat4& matrix,
         for (size_t j = 0; j < 3; j++) {
             const auto vert = vertexData[i * 3 + j];
             float d = 1.0f;
+            auto norm = rotation * vert.normal;
             if (mesh.lighting) {
-                auto norm = rotation * vert.normal;
                 d = glm::dot(norm, SUN_VECTOR);
                 d = 0.8f + d * 0.2f;
             }
-            batch->vertex(matrix * glm::vec4(vert.coord, 1.0f), vert.uv, lights*d, tint);
+            batch->vertex(matrix * glm::vec4(vert.coord, 1.0f), vert.uv, lights*d, tint, norm);
         }
     }
 }

src/graphics/render/WorldRenderer.cpp

@@ -367,7 +367,7 @@ void WorldRenderer::generateShadowsMap(
     float shadowMapScale = 0.32f / (1 << glm::max(0, quality)) * scale;
     float shadowMapSize = resolution * shadowMapScale;
 
-    glm::vec3 basePos = glm::floor(camera.position);
+    glm::vec3 basePos = glm::floor(camera.position / 4.0f) * 4.0f;
     shadowCamera = Camera(basePos, shadowMapSize);
     shadowCamera.near = 0.1f;
     shadowCamera.far = 1000.0f;
@@ -400,8 +400,9 @@ void WorldRenderer::generateShadowsMap(
     auto view = shadowCamera.getView();
 
     auto currentPos = shadowCamera.position;
-    auto min = view * glm::vec4(currentPos - (shadowCamera.right + shadowCamera.up) * (shadowMapSize * 0.5f), 1.0f);
-    auto max = view * glm::vec4(currentPos + (shadowCamera.right + shadowCamera.up) * (shadowMapSize * 0.5f), 1.0f);
+    auto topRight = shadowCamera.right + shadowCamera.up;
+    auto min = view * glm::vec4(currentPos - topRight * shadowMapSize * 0.5f, 1.0f);
+    auto max = view * glm::vec4(currentPos + topRight * shadowMapSize * 0.5f, 1.0f);
 
     shadowCamera.setProjection(glm::ortho(min.x, max.x, min.y, max.y, 0.1f, 1000.0f));
 
@@ -436,6 +437,7 @@ void WorldRenderer::draw(
     camera.setAspectRatio(vp.x / static_cast<float>(vp.y));
 
     auto& mainShader = assets.require<Shader>("main");
+    auto& entityShader = assets.require<Shader>("entity");
     const auto& settings = engine.getSettings();
     gbufferPipeline = settings.graphics.advancedRender.get();
     int shadowsQuality = settings.graphics.shadowsQuality.get();
@@ -446,12 +448,14 @@ void WorldRenderer::draw(
         shadows = true;
         Shader::preprocessor->define("ENABLE_SHADOWS", "true");
         mainShader.recompile();
+        entityShader.recompile();
     } else if (shadowsQuality == 0 && shadows) {
         shadowMap.reset();
         wideShadowMap.reset();
         shadows = false;
         Shader::preprocessor->undefine("ENABLE_SHADOWS");
         mainShader.recompile();
+        entityShader.recompile();
     }
     if (shadows && shadowMap->getResolution() != resolution) {
         shadowMap = std::make_unique<ShadowMap>(resolution);