bool render() {
// *********************************
// Set render target to frame buffer
renderer::set_render_target(frame);
// Clear frame
renderer::clear();
// *********************************
// Render meshes
for (auto &e : meshes) {
auto m = e.second;
// Bind effect
renderer::bind(eff);
// Create MVP matrix
auto M = m.get_transform().get_transform_matrix();
auto V = cam.get_view();
auto P = cam.get_projection();
auto MVP = P * V * M;
// Set MVP matrix uniform
glUniformMatrix4fv(eff.get_uniform_location("MVP"), 1, GL_FALSE, value_ptr(MVP));
// Create MV matrix
auto MV = V * M;
// Set MV matrix uniform
glUniformMatrix4fv(eff.get_uniform_location("MV"), 1, GL_FALSE, value_ptr(MV));
// Set M matrix uniform
glUniformMatrix4fv(eff.get_uniform_location("M"), 1, GL_FALSE, value_ptr(M));
// Set N matrix uniform
glUniformMatrix3fv(eff.get_uniform_location("N"), 1, GL_FALSE, value_ptr(m.get_transform().get_normal_matrix()));
// Bind material
renderer::bind(m.get_material(), "mat");
// Bind light
renderer::bind(light, "light");
// Bind texture
renderer::bind(tex, 0);
// Set tex uniform
glUniform1i(eff.get_uniform_location("tex"), 0);
// Set eye position
glUniform3fv(eff.get_uniform_location("eye_pos"), 1, value_ptr(cam.get_position()));
// Render mesh
renderer::render(m);
}
// *********************************
// Set render target back to the screen
renderer::set_render_target();
// Bind Tex effect
renderer::bind(tex_eff);
// MVP is now the identity matrix
auto MVP = glm::mat4();
// Set MVP matrix uniform
glUniformMatrix4fv(tex_eff.get_uniform_location("MVP"), 1, GL_FALSE, value_ptr(MVP));
// Bind texture from frame buffer
renderer::bind(frame.get_frame(), 0);
// Set the tex uniform
glUniform1i(tex_eff.get_uniform_location("tex"), 0);
// Render the screen quad
renderer::render(screen_quad);
// *********************************
return true;
}
bool render() {
// Render meshes
for (auto &e : meshes) {
auto m = e.second;
// Bind effect
renderer::bind(eff);
// Create MVP matrix
auto M = m.get_transform().get_transform_matrix();
auto V = cam.get_view();
auto P = cam.get_projection();
auto MVP = P * V * M;
// Set MVP matrix uniform
glUniformMatrix4fv(eff.get_uniform_location("MVP"), 1, GL_FALSE, value_ptr(MVP));
// *********************************
// Set M matrix uniform
glUniformMatrix4fv(eff.get_uniform_location("M"), 1, GL_FALSE, value_ptr(m.get_transform().get_transform_matrix()));
// Set N matrix uniform - remember - 3x3 matrix
glUniformMatrix3fv(eff.get_uniform_location("N"), 1, GL_FALSE, value_ptr(m.get_transform().get_normal_matrix()));
// Set material colour - specular material is white
glUniform4fv(eff.get_uniform_location("material_colour"), 1, value_ptr(vec4(1.0f, 1.0f, 1.0f, 1.0f)));
// Set shininess - Use 50.0f
glUniform1f(eff.get_uniform_location("shininess"), 50.0f);
// Set light colour - (1.0, 1.0, 1.0, 1.0)
glUniform4fv(eff.get_uniform_location("light_colour"), 1, value_ptr(vec4(1.0f, 1.0f, 1.0f, 1.0f)));
// Set light direction- (1.0, 1.0, -1.0)
glUniform3fv(eff.get_uniform_location("light_dir"), 1, value_ptr(vec3(1.0f, 1.0f, -1.0f)));
// Set eye position - Get this from active camera
glUniform3fv(eff.get_uniform_location("eye_pos"), 1, value_ptr(vec3(cam.get_position())));
// *********************************
// Render mesh
renderer::render(m);
}
return true;
}
bool render() {
// Render meshes
for (auto &e : meshes) {
auto m = e.second;
// Bind effect
renderer::bind(eff);
// Create MVP matrix
auto M = m.get_transform().get_transform_matrix();
auto V = cam.get_view();
auto P = cam.get_projection();
auto MVP = P * V * M;
// Set MVP matrix uniform
glUniformMatrix4fv(eff.get_uniform_location("MVP"), // Location of uniform
1, // Number of values - 1 mat4
GL_FALSE, // Transpose the matrix?
value_ptr(MVP)); // Pointer to matrix data
// *********************************
// Set M matrix uniform
glUniformMatrix4fv(eff.get_uniform_location("M"), 1, GL_FALSE, value_ptr(M));
// Set N matrix uniform - remember - 3x3 matrix
glUniformMatrix3fv(eff.get_uniform_location("N"),
1,
GL_FALSE,
value_ptr(m.get_transform().get_normal_matrix()));
// Bind material
renderer::bind(m.get_material(), "mat");
// Bind light
renderer::bind(light, "point");
// Bind texture
renderer::bind(tex, 0);
// Set tex uniform
glUniform1i(eff.get_uniform_location("tex"), 0);
// Set eye position- Get this from active camera
glUniform3fv(eff.get_uniform_location("eye_pos"), 1, value_ptr(cam.get_position()));
// Render mesh
renderer::render(m);
// *********************************
}
return true;
}