chunkmesh: do not create shader for every object

include/chunk.hpp

@@ -11,6 +11,7 @@
 #include "block.hpp"
 #include "spacefilling.hpp"
 #include "intervalmap.hpp"
+#include "shader.hpp"
 
 #define CHUNK_SIZE 16
 #define CHUNK_VOLUME (CHUNK_SIZE * CHUNK_SIZE * CHUNK_SIZE)

include/chunkmesh.hpp

@@ -7,7 +7,9 @@
 #include <vector>
 
 #include "chunk.hpp"
+#include "globals.hpp"
 #include "shader.hpp"
+#include <string>
 
 class ChunkMesh
 {
@@ -20,7 +22,6 @@ public:
     void draw();
 
     Chunk::Chunk *chunk{nullptr};
-    // static Shader theShader("shaders/shader.vs", "shaders/shader.fs");
     glm::mat4 model = glm::mat4(1.0f);
 
 private:
@@ -32,7 +33,6 @@ private:
 
 
     GLuint VAO{0}, VBO{0}, EBO{0}, colorBuffer{0}, vIndex{0};
-    Shader *theShader{nullptr};
 };
 
 #endif

include/globals.hpp

@@ -13,6 +13,7 @@
 #define RENDER_DISTANCE 8
 
 extr Camera theCamera;
+extr Shader* theShader;
 
 extr uint32_t MORTON_XYZ_ENCODE[CHUNK_SIZE][CHUNK_SIZE][CHUNK_SIZE];
 extr uint32_t MORTON_XYZ_DECODE[CHUNK_VOLUME][3];

src/chunkmesh.cpp

@@ -16,8 +16,7 @@ ChunkMesh::~ChunkMesh()
     if(this->colorBuffer) glDeleteBuffers(1, &(this->colorBuffer));
 
     delete this->chunk;
-    delete (this->theShader);
-}
+    }
 
 ChunkMesh::ChunkMesh(Chunk::Chunk *c)
 {
@@ -28,7 +27,6 @@ ChunkMesh::ChunkMesh(Chunk::Chunk *c)
     glGenBuffers(1, &(this->VBO));
     glGenBuffers(1, &(this->EBO));
 
-    this->theShader = new Shader{"shaders/shader.vs", "shaders/shader.fs"};
     this->model = glm::translate(model, (float)CHUNK_SIZE * c->getPosition());
 
     // std::cout << "CHUNK MESH " << c << std::endl;

src/main.cpp

@@ -1,15 +1,17 @@
+
 #include <glad/glad.h>
 #include <GLFW/glfw3.h>
 
-#define GLOBALS_DEFINER
-#include "globals.hpp"
-#undef GLOBALS_DEFINER
-
 #include <iostream>
 
 #include "chunkmanager.hpp"
 #include "main.hpp"
 #include "spacefilling.hpp"
+#include "shader.hpp"
+
+#define GLOBALS_DEFINER
+#include "globals.hpp"
+#undef GLOBALS_DEFINER
 
 float deltaTime = 0.0f; // Time between current frame and last frame
 float lastFrame = 0.0f; // Time of last frame
@@ -55,6 +57,8 @@ int main()
     SpaceFilling::initLUT();
     chunkmanager::init();
 
+    theShader = new Shader{"shaders/shader.vs", "shaders/shader.fs"};
+
     while (!glfwWindowShouldClose(window))
     {
         // DeltaTime