added the readme

2026-06-08 17:07:34 -04:00
commit 6655fd2886
1001 changed files with 253651 additions and 0 deletions
@@ -0,0 +1,89 @@
+#ifndef RENDER_SYSTEM
+#define RENDER_SYSTEM
+#include <iostream>
+#include <vector>
+#include <map>
+const float skyboxVertices[] = {
+    -1.0f,  1.0f, -1.0f, -1.0f, -1.0f, -1.0f,  1.0f, -1.0f, -1.0f,
+     1.0f, -1.0f, -1.0f,  1.0f,  1.0f, -1.0f, -1.0f,  1.0f, -1.0f,
+    -1.0f, -1.0f,  1.0f, -1.0f, -1.0f, -1.0f, -1.0f,  1.0f, -1.0f,
+    -1.0f,  1.0f, -1.0f, -1.0f,  1.0f,  1.0f, -1.0f, -1.0f,  1.0f,
+     1.0f, -1.0f, -1.0f,  1.0f, -1.0f,  1.0f,  1.0f,  1.0f,  1.0f,
+     1.0f,  1.0f,  1.0f,  1.0f,  1.0f, -1.0f,  1.0f, -1.0f, -1.0f,
+    -1.0f, -1.0f,  1.0f, -1.0f,  1.0f,  1.0f,  1.0f,  1.0f,  1.0f,
+     1.0f,  1.0f,  1.0f,  1.0f, -1.0f,  1.0f, -1.0f, -1.0f,  1.0f,
+    -1.0f,  1.0f, -1.0f,  1.0f,  1.0f, -1.0f,  1.0f,  1.0f,  1.0f,
+     1.0f,  1.0f,  1.0f, -1.0f,  1.0f,  1.0f, -1.0f,  1.0f, -1.0f,
+    -1.0f, -1.0f, -1.0f, -1.0f, -1.0f,  1.0f,  1.0f, -1.0f, -1.0f,
+     1.0f, -1.0f, -1.0f, -1.0f, -1.0f,  1.0f,  1.0f, -1.0f,  1.0f
+};
+class Camera;
+class Shader;
+class FBO;
+class VBO;
+class VAO;
+class Cubemap;
+class Lighting;
+class Renderable {
+public:
+    enum ShaderType {
+        RigShader,
+        MeshShader,
+        ImageBoxShader,
+        BoxShader,
+        TextShader,
+        ParticleShader
+    };
+    ShaderType shadertype = ShaderType::MeshShader;
+    bool opaque = true;
+    bool castshadow = false;
+    Renderable();
+    ~Renderable();
+    void BindToRenderSystem();
+    virtual void Render(Shader& ShaderProgram) {}
+    virtual glm::vec3 GetWorldPosition() const { return glm::vec3(0.0f); }
+};
+class RenderSystem {
+public:
+    Lighting* lighting = nullptr;
+    FBO* screenfbo = nullptr;
+    FBO* shadowdepthmapfbo = nullptr;
+    unsigned int depthMaptexture = 0;
+    unsigned int textureColorbuffer = 0;
+    unsigned int rbo = 0;
+    unsigned int SHADOW_RESOLUTION = 0;
+    VAO* quadVAO = nullptr;  VBO* quadVBO = nullptr;
+    VAO* skyboxVAO = nullptr;  VBO* skyboxVBO = nullptr;
+    Shader* MeshShadowShader = nullptr;
+    Shader* RigShadowShader = nullptr;
+    Shader* SkyboxShader = nullptr;
+    Shader* ScreenShader = nullptr;
+    Shader* RigShader = nullptr;
+    Shader* MeshShader = nullptr;
+    Shader* ImageBoxShader = nullptr;
+    Shader* BoxShader = nullptr;
+    Shader* Text2DShader = nullptr;
+    Shader* ParticleShader = nullptr;
+    Cubemap* skybox = nullptr;
+    RenderSystem() {}
+    void Initialize();
+    void Render(Camera& camera);
+    void AddRenderable(Renderable* r) { renderables.push_back(r); }
+    void RemoveRenderable(Renderable* r) {
+        for (int i = 0; i < (int)renderables.size(); i++) {
+            if (renderables[i] == r) { renderables.erase(renderables.begin() + i); return; }
+        }
+        std::cout << "didn't find renderable to remove\n";
+    }
+    void RenderRenderable(Renderable* renderable, Camera& camera);
+    std::vector<Renderable*> renderables;
+private:
+    void PrepareRigShader(Camera& camera);
+    void PrepareMeshShader(Camera& camera);
+    void PrepareParticleShader(Camera& camera);
+    void PrepareBoxShader(Camera& camera);
+    void PrepareImageBoxShader(Camera& camera);
+    void PrepareTextShader(Camera& camera);
+    void RenderTranslucent(Camera& camera, const glm::mat4& lightSpaceMatrix, const glm::vec3& camPos);
+};
+#endif