prosperon/source/engine/3d/mesh.c

#include "mesh.h"

#include "render.h"
#include "shader.h"
#include "texture.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

void DrawMesh(struct mesh *mesh, struct shader *shader) {
  // bind appropriate textures
  uint32_t diffuseNr = 1;
  uint32_t specularNr = 1;
  uint32_t normalNr = 1;
  uint32_t heightNr = 1;

  //    for (int i = 0; i < (mesh->te - mesh->textures); i++) {
  //	glActiveTexture(GL_TEXTURE0 + i);	// active proper texture unit before binding
  // retrieve texture number (the N in diffuse_textureN)
  //	char number = 0;
  // TODO: malloc every single frame ... nope! Change to stack
  /*char *name = malloc(sizeof(char) *(strlen(mesh->textures[i].type) + 2));*/
  /*
//	if (mesh->textures[i].type == TEX_DIFF)
//	    number = diffuseNr++;
//	else if (mesh->textures[i].type == TEX_SPEC)
//	    number = specularNr++;
//	else if (mesh->textures[i].type == TEX_NORM)
//	    number = normalNr++;
//	else if (mesh->textures[i].type == TEX_HEIGHT)
//	    number = heightNr++;
*/

  /*
          glUniform1i(glGetUniformLocation(shader->id, name), i);
          glBindTexture(GL_TEXTURE_2D, mesh->textures[i].id);
          free(name);
          */
}

void DrawMeshAgain(struct mesh *mesh) {
}

void setupmesh(struct mesh *mesh) {
  /*
      // create buffers/arrays
      glGenVertexArrays(1, &mesh->VAO);
      glGenBuffers(1, &mesh->VBO);
      glGenBuffers(1, &mesh->EBO);

      glBindVertexArray(mesh->VAO);
      // load data into vertex buffers
      glBindBuffer(GL_ARRAY_BUFFER, mesh->VBO);


      // The effect is that we can simply pass a pointer to the struct and it translates perfectly to vevc array which
      // again translates to 3/2 floats which translates to a byte array.
      glBufferData(GL_ARRAY_BUFFER,
                   (mesh->ve - mesh->vertices) * sizeof(struct Vertex),
                   &mesh->vertices[0], GL_STATIC_DRAW);

      glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mesh->EBO);
      glBufferData(GL_ELEMENT_ARRAY_BUFFER,
                   (mesh->ie - mesh->indices) * sizeof(uint32_t),
                   &mesh->indices[0], GL_STATIC_DRAW);

      // set the vertex attribute pointers
      // vertex Positions
      glEnableVertexAttribArray(0);
      glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(struct Vertex), NULL);
      // vertex normals
      glEnableVertexAttribArray(1);
  //    glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, sizeof(struct Vertex), offsetof(struct Vertex, Normal[3]));
      // vertex texture coords
      glEnableVertexAttribArray(2);
  //    glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, sizeof(struct Vertex), offsetof(struct Vertex, TexCoords[2]));
      // vertex tangent
      glEnableVertexAttribArray(3);
  //    glVertexAttribPointer(3, 3, GL_FLOAT, GL_FALSE, sizeof(struct Vertex), offsetof(struct Vertex, Tangent[3]));
      // vertex bitangent
      glEnableVertexAttribArray(4);
  //    glVertexAttribPointer(4, 3, GL_FLOAT, GL_FALSE, sizeof(struct Vertex), offsetof(struct Vertex, Bitangent[3]));

      // Bone ids
      glEnableVertexAttribArray(5);
      glVertexAttribPointer(5, 4, GL_INT, GL_FALSE, sizeof(struct Vertex), offsetof(struct Vertex,
                                              m_BoneIDs
                                              [MAX_BONE_INFLUENCE]));

      // Weights
      glEnableVertexAttribArray(6);
  //    glVertexAttribPointer(6, 4, GL_FLOAT, GL_FALSE, sizeof(struct Vertex), offsetof(struct Vertex, m_Weights));

      glBindVertexArray(0);

  */
}