material.cpp

   1 #include "material.hpp"
   2 #include "image.hpp"
   3
   4 Material::Material(const aiMaterial &ai, GLuint progId): progId(progId) {
   5         if (ai.GetTextureCount(aiTextureType_DIFFUSE) > 0) {
   6                 aiString path;
   7                 ai.GetTexture(aiTextureType_DIFFUSE, 0, &path);
   8                 diffuseMap = new Texture(std::string(path.C_Str()));
   9         }
  10
  11         if (ai.GetTextureCount(aiTextureType_SPECULAR) > 0) {
  12                 aiString path;
  13                 ai.GetTexture(aiTextureType_SPECULAR, 0, &path);
  14                 specularMap = new Texture(std::string(path.C_Str()));
  15         }
  16
  17         if (ai.GetTextureCount(aiTextureType_NORMALS) > 0) {
  18                 aiString path;
  19                 ai.GetTexture(aiTextureType_NORMALS, 0, &path);
  20                 normalMap = new Texture(std::string(path.C_Str()));
  21         }
  22         ai.Get(AI_MATKEY_SHININESS, shininess);
  23         ai.Get(AI_MATKEY_REFLECTIVITY, reflectivity);
  24         ai.Get(AI_MATKEY_REFRACTI, refractiveIndex);
  25         if (ai.Get(AI_MATKEY_OPACITY, opacity) == aiReturn_FAILURE)
  26                 opacity = 1.f;
  27
  28         ai.Get(AI_MATKEY_COLOR_AMBIENT, ambient);
  29         ai.Get(AI_MATKEY_COLOR_DIFFUSE, diffuse);
  30         ai.Get(AI_MATKEY_COLOR_SPECULAR, specular);
  31 }
  32
  33 Material::Texture::Texture(const std::string &fileName) {
  34         glGenTextures(1, &texId);
  35         glBindTexture(GL_TEXTURE_2D, texId);
  36         Image img("models/" + fileName);
  37         glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, img.width(), img.height(), 0, GL_RGBA, GL_UNSIGNED_BYTE, img.data());
  38         glGenerateMipmap(GL_TEXTURE_2D);
  39 }
  40
  41 void Material::bind() const {
  42         /* glUniform3f(glGetUniformLocation(progId, "albedo"), 0.5f, 0.f, 0.f); */
  43         /* glUniform1f(glGetUniformLocation(progId, "metallic"), 0.2f); */
  44         /* glUniform1f(glGetUniformLocation(progId, "roughness"), 0.3f); */
  45         /* glUniform1f(glGetUniformLocation(progId, "ao"), 1.f); */
  46
  47         /* glUniform4f(glGetUniformLocation(progId, "material.ambient"), ambient.r, ambient.g, ambient.b, ambient.a); */
  48         /* glUniform4f(glGetUniformLocation(progId, "material.diffuse"), diffuse.r, diffuse.g, diffuse.b, diffuse.a); */
  49         /* glUniform4f(glGetUniformLocation(progId, "material.specular"), specular.r, specular.g, specular.b, specular.a); */
  50         /* glUniform1f(glGetUniformLocation(progId, "material.shininess"), shininess); */
  51         /* glUniform1f(glGetUniformLocation(progId, "material.reflectivity"), reflectivity); */
  52         /* glUniform1f(glGetUniformLocation(progId, "material.refractiveIndex"), refractiveIndex); */
  53         /* glUniform1f(glGetUniformLocation(progId, "material.opacity"), opacity); */
  54
  55         /* glUniform1i(glGetUniformLocation(progId, "material.hasTexture"), diffuseMap != nullptr); */
  56         /* glUniform1i(glGetUniformLocation(progId, "material.hasSpecularMap"), specularMap != nullptr); */
  57         /* glUniform1i(glGetUniformLocation(progId, "material.hasNormalMap"), normalMap != nullptr); */
  58         /* glUniform1i(glGetUniformLocation(progId, "material.hasTexture"), diffuseMap != nullptr); */
  59         /* glUniform1i(glGetUniformLocation(progId, "material.hasSpecularMap"), specularMap != nullptr); */
  60         /* glUniform1i(glGetUniformLocation(progId, "material.hasNormalMap"), normalMap != nullptr); */
  61
  62         /* glUniform1i(glGetUniformLocation(progId, "material.diffuseMap"), 2); */
  63         /* glActiveTexture(GL_TEXTURE2); */
  64         /* if (diffuseMap) glBindTexture(GL_TEXTURE_2D, diffuseMap->texId); */
  65
  66         /* glUniform1i(glGetUniformLocation(progId, "material.specularMap"), 3); */
  67         /* glActiveTexture(GL_TEXTURE3); */
  68         /* if (specularMap) glBindTexture(GL_TEXTURE_2D, specularMap->texId); */
  69
  70         /* glUniform1i(glGetUniformLocation(progId, "material.normalMap"), 4); */
  71         /* glActiveTexture(GL_TEXTURE4); */
  72         /* if (normalMap) glBindTexture(GL_TEXTURE_2D, normalMap->texId); */
  73 }