// MODIFY THIS FUNCTION
void drawMesh(cgtk::GLSLProgram &program, const MeshVAO &meshVAO)
{
glm::mat4 model = globals.trackball.getRotationMatrix() * glm::mat4(1.0f);
glm::mat4 view = glm::lookAt(glm::vec3(0.0f, 0.0f, 1.5f), glm::vec3(0.0f), glm::vec3(0.0f, 1.0f, 0.0f));
glm::mat4 projection = glm::perspective(90.0f+globals.zoomfactor, (float) globals.width/globals.height, 0.1f, 100.0f);
glm::mat4 mvp = projection * view * model;
glm::mat4 mv = view * model;
program.enable();
program.setUniformMatrix4f("mvp", mvp);
program.setUniformMatrix4f("view", view);
program.setUniformMatrix4f("model", model);
program.setUniform3f("lightDir", globals.lightDir);
program.setUniform3f("eye_position", glm::vec3(0.0f, 0.0f, 1.5f));
program.setUniform1f("material_kd", globals.material_kd);
program.setUniform1f("outline_intensity", globals.outline_intensity);
program.setUniform3f("diffuseColor", globals.diffuseColor);
program.setUniform3f("ambientColor", globals.ambientColor);
program.setUniform3f("outlineColor", globals.outlineColor);
program.setUniform1i("colorlvl", globals.colorlvl);
glBindVertexArray(meshVAO.vao);
glDrawElements(GL_TRIANGLES, meshVAO.numIndices, GL_UNSIGNED_INT, 0);
glBindVertexArray(0);
program.disable();
}
void drawSkyBox(cgtk::GLSLProgram &program){
glDepthMask(GL_FALSE);
// Bind Skybox and DrawCa
program.enable(); // glUseProgram()
// Pass uniforms /////////////
glm::mat4 model = glm::mat4(1.0f);
glm::mat4 trackMatrix = globals.trackball.getRotationMatrix();
model = trackMatrix;
glm::mat4 view = glm::mat4(1.0f);
glm::mat4 projection = glm::mat4(1.0f);
projection = projection = glm::perspective(globals.zoomFactor*45.0f,
1.0f, 0.1f, 100.0f);
view = glm::lookAt(glm::vec3(0.0f, 0.01f, 5.0f), glm::vec3(0),
glm::vec3(0.0f, 1.0f, 0.0f));
glm::mat4 MVPmatrix = projection * view * model;
glm::mat4 u_mv = view * model;
program.setUniformMatrix4f("u_projection", glm::mat4(projection));
program.setUniformMatrix4f("u_view", glm::mat4(view));
program.setUniform1i("u_cubemap", globals.cubemap_sky_box);
program.setUniformMatrix4f("u_mvp", glm::mat4(MVPmatrix));
//////////////////////////////
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_CUBE_MAP, globals.cubemap_sky_box);
glBindVertexArray(globals.skyboxVAO);
//glDrawElements(GL_TRIANGLES, 36, GL_UNSIGNED_INT, 0); // not sure about 36
glDrawArrays(GL_TRIANGLES, 0, 108);
glBindVertexArray(0);
program.disable();
glDepthMask(GL_TRUE);
}