Shadows working but look dumb. The issue so far was that framebuffer.cpp interferes with the framebuffer used to create the shadow map.

33-shadow-mapping/src/scene.hpp

@@ -15,7 +15,6 @@
 #include <vector>
 #include <unordered_map>
 #include "config.hpp"
-#include "text.hpp"
 
 struct Thing {
   std::string name;
@@ -45,8 +44,36 @@ struct Scene {
   unsigned int skyboxVAO = UINT_MAX;
   unsigned int skyboxVBO = UINT_MAX;
   unsigned int skybox_texture_id = UINT_MAX;
+  glm::mat4 projection = glm::mat4(1.0f);
   bool reflect_on = false;
 
+  // shadow stuff
+  Shader depth_shader{{"shaders/33-depth.vert.glsl", "shaders/33-depth.frag.glsl", ""}};
+  Shader depth_dbg_shader{{"shaders/33-shadow_dbg.vert.glsl", "shaders/33-shadow_dbg.frag.glsl", ""}};
+  unsigned int depth_FBO = UINT_MAX;
+  unsigned int depth_map = UINT_MAX;
+  const unsigned int SHADOW_WIDTH = 1024, SHADOW_HEIGHT = 1024;
+  float near_plane = 1.0f;
+  float far_plane = 100.0f;
+
+  float depth_near_plane = 1.0f;
+  float depth_far_plane = 7.5f;
+
+  glm::mat4 light_space;
+  bool debug_on = false;
+
+  float quadVertices[20] = {
+    // positions        // texture Coords
+    -1.0f,  1.0f, 0.0f, 0.0f, 1.0f,
+    -1.0f, -1.0f, 0.0f, 0.0f, 0.0f,
+    1.0f,  1.0f, 0.0f, 1.0f, 1.0f,
+    1.0f, -1.0f, 0.0f, 1.0f, 0.0f,
+  };
+
+
+  unsigned int quadVAO = UINT_MAX;
+  unsigned int quadVBO = UINT_MAX;
+
   Scene(components::Scene& config):
     shader{config.shader},
     reflect_shader{config.reflect_shader},
@@ -90,7 +117,9 @@ struct Scene {
 
     framebuffer.init();
     screen.init();
-    init_skybox();
+    // init_skybox();
+    init_shadows();
+    init_debug();
   }
 
   void update();
@@ -98,7 +127,12 @@ struct Scene {
   void render(GLFWwindow* window);
   void cleanup();
   void init_skybox();
+  void init_shadows();
+  void init_debug();
   void load_skybox_textures();
-  void render_skybox(const glm::mat4& projection);
+  void render_skybox();
   void spawn(const std::string& name);
+  void render_scene(GLFWwindow* window, Shader& with_shader);
+  void render_shadows(GLFWwindow* window);
+  void render_debug(GLFWwindow* window);
 };