void render()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// notify to GL that we like to use our program now
glUseProgram(program);
// bind vertex position buffer
glBindBuffer(GL_ARRAY_BUFFER, pMesh_AK->vertexBuffer);
// bind vertex position buffer
GLuint vertexPositionLoc = glGetAttribLocation(program, "position");
glEnableVertexAttribArray(vertexPositionLoc);
glVertexAttribPointer(vertexPositionLoc, sizeof(vertex().pos) / sizeof(GLfloat), GL_FLOAT, GL_FALSE, sizeof(vertex), 0);
// bind vertex normal buffer
GLuint vertexNormalLoc = glGetAttribLocation(program, "normal");
glEnableVertexAttribArray(vertexNormalLoc);
glVertexAttribPointer(vertexNormalLoc, sizeof(vertex().norm) / sizeof(GLfloat), GL_FLOAT, GL_FALSE, sizeof(vertex), (GLvoid*)(sizeof(vertex().pos)));
// bind vertex texture buffer
GLuint vertexTexlLoc = glGetAttribLocation(program, "texcoord");
glEnableVertexAttribArray(vertexTexlLoc);
glVertexAttribPointer(vertexTexlLoc, sizeof(vertex().tex) / sizeof(GLfloat), GL_FLOAT, GL_FALSE, sizeof(vertex), (GLvoid*)(sizeof(vertex().pos) + sizeof(vertex().norm)));
glTexImage2D(GL_TEXTURE_2D, 0, 3, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, ak.getImage());
//allocate and create mipmap
for (int k = 1, w = width >> 1, h = height >> 1; k < 9; k++, w = w >> 1, h = h >> 1)
glTexImage2D(GL_TEXTURE_2D, k, 3, w, h, 0, GL_RGB, GL_UNSIGNED_BYTE, nullptr);
glGenerateMipmap(GL_TEXTURE_2D);
// configure texture parameters
//glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
//glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
mat4 modelMatrix;
//
//modelMatrix = mat4::rotate(vec3(0, 1, 0), PI)*modelMatrix;
modelMatrix = mat4::rotate(vec3(0, 0, 1), PI)*modelMatrix;
modelMatrix = mat4::rotate(vec3(1, 0, 0), -PI/2)*modelMatrix;
modelMatrix = mat4::translate(-camera.at) * modelMatrix;
modelMatrix = mat4::scale(ak.getScale(), ak.getScale(), ak.getScale()) * modelMatrix;
//modelMatrix = mat4::translate(camera.at) * modelMatrix;
modelMatrix = mat4::translate(ak.getPosition().x, ak.getPosition().y, ak.getPosition().z) * modelMatrix;
glUniformMatrix4fv(glGetUniformLocation(program, "modelMatrix"), 1, GL_TRUE, modelMatrix);
glDrawArrays(GL_TRIANGLES,0, pMesh_AK->vertexList.size());
//glBindBuffer(GL_ARRAY_BUFFER, NULL);
//glBindBuffer(GL_ARRAY_BUFFER, pMesh_Box->vertexBuffer);
glBufferData(GL_ARRAY_BUFFER, pMesh_Box->vertexList.size()*sizeof(vertex), &pMesh_Box->vertexList[0], GL_STATIC_DRAW);
// bind vertex texture buffer
vertexTexlLoc = glGetAttribLocation(program, "texcoord");
glEnableVertexAttribArray(vertexTexlLoc);
glVertexAttribPointer(vertexTexlLoc, sizeof(vertex().tex) / sizeof(GLfloat), GL_FLOAT, GL_FALSE, sizeof(vertex), (GLvoid*)(sizeof(vertex().pos) + sizeof(vertex().norm)));
glTexImage2D(GL_TEXTURE_2D, 0, 3, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, ak.getImage());
//allocate and create mipmap
for (int k = 1, w = width >> 1, h = height >> 1; k < 9; k++, w = w >> 1, h = h >> 1)
glTexImage2D(GL_TEXTURE_2D, k, 3, w, h, 0, GL_RGB, GL_UNSIGNED_BYTE, nullptr);
glGenerateMipmap(GL_TEXTURE_2D);
// configure texture parameters
//glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
//glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
//mat4 modelMatrix;
//
//modelMatrix = mat4::rotate(vec3(0, 1, 0), PI)*modelMatrix;
modelMatrix = mat4::rotate(vec3(0, 0, 1), PI)*modelMatrix;
modelMatrix = mat4::rotate(vec3(1, 0, 0), -PI / 2)*modelMatrix;
modelMatrix = mat4::translate(-camera.at) * modelMatrix;
//modelMatrix = mat4::scale(10, 10, 10) * modelMatrix;
//modelMatrix = mat4::translate(camera.at) * modelMatrix;
modelMatrix = mat4::translate(box.getPosition().x, box.getPosition().y, box.getPosition().z) * modelMatrix;
glUniformMatrix4fv(glGetUniformLocation(program, "modelMatrix"), 1, GL_TRUE, modelMatrix);
glDrawArrays(GL_TRIANGLES, 0, pMesh_Box->vertexList.size());
// now swap backbuffer with front buffer, and display it
glutSwapBuffers();
glBindBuffer(GL_ARRAY_BUFFER, 0);
// increment FRAME index
frame++;
}
