void Model::drawModel(GLSLProgram &shader) const {
for (size_t i=0; i<materials_.size(); ++i) {
if (materials_[i].map_Kd != "") {
glUniform1f(shader("useTextureMap"), 1.0); //use texture
GLint whichID[1];
glActiveTexture(GL_TEXTURE0);
glGetIntegerv(GL_TEXTURE_BINDING_2D, whichID);
if (whichID[0] != textures_[i]) {
glBindTexture(GL_TEXTURE_2D, textures_[i]);
}
}
else {
glUniform1f(shader("useTextureMap"), 0.0);
glUniform3fv(shader("materialKd"), 1 , glm::value_ptr(materials_[i].Kd));
if (shader.isActive(shader("materialKs")))
glUniform3fv(shader("materialKs"), 1 , glm::value_ptr(materials_[i].Ks));
if (shader.isActive(shader("materialKa")))
glUniform3fv(shader("materialKa"), 1 , glm::value_ptr(materials_[i].Ka));
if (shader.isActive(shader("materialNs")))
glUniform1f(shader("materialNs"), materials_[i].Ns);
}
if (materials_.size() == 1)
glDrawElements(GL_TRIANGLES, indices_.size(), GL_UNSIGNED_SHORT, 0);
else
glDrawElements(GL_TRIANGLES, materials_[i].count, GL_UNSIGNED_SHORT,
(const GLvoid*)(&indices_[materials_[i].offset]));
}
}
GLuint Model::getVAOForContext(GLSLProgram &shader, QGLContext *context){
if (!vaoHashContainer_.contains(context)) {
glGenVertexArrays(1, &vaoID_);
glBindVertexArray(vaoID_);
shader.use();
glBindBuffer (GL_ARRAY_BUFFER, vboVerticesID_);
glEnableVertexAttribArray(shader["vVertex"]);
glVertexAttribPointer(shader["vVertex"], 3, GL_FLOAT, GL_FALSE,sizeof(Vertex),0);
if (shader.isActive(shader["vNormal"])) {
glEnableVertexAttribArray(shader["vNormal"]);
glVertexAttribPointer(shader["vNormal"], 3, GL_FLOAT,
GL_FALSE, sizeof(Vertex), (const GLvoid*)(offsetof(Vertex, normal)) );
}
if (shader.isActive(shader["vUV"])) {
glEnableVertexAttribArray(shader["vUV"]);
glVertexAttribPointer(shader["vUV"], 2, GL_FLOAT,
GL_FALSE, sizeof(Vertex), (const GLvoid*)(offsetof(Vertex, uv)) );
}
if (materials_.size()==1)
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vboIndicesID_);
glBindVertexArray(0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER,0);
vaoHashContainer_.insert(context, vaoID_);
shader.unUse();
}
return vaoHashContainer_[context];
}
