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;
}
void
shader::set_texture(const std::string &name, const frame_buffer &set_frame_buffer)
{
const auto it = std::find_if(std::begin(m_samplers), std::end(m_samplers), [name](const sampler &samp){ return samp.name == name; });
if(it != m_samplers.end())
{
const GLenum target = GL_TEXTURE_2D;
m_pending_texture_data.emplace_back(pending_texture{set_frame_buffer.get_gl_id(), target, it->index});
}
else
{
log_error(GL_NO_ERROR, "shader::set_texture - couldn't find sampler '" + name + "' for framebuffer.");
}
}
image_view(
int port,
const frame_buffer& frame_buffer,
const detail::high_resolution_system_time_point& clock) :
port_(port),
width_(frame_buffer.width()),
height_(frame_buffer.height()),
stride_(frame_buffer.stride()),
step_(frame_buffer.step()),
data_(frame_buffer.data()),
timestamp_(clock.get_system_time(frame_buffer.get_timestamp()))
{
}
bool render() {
// !!!!!!!!!!!!!!! FIRST PASS !!!!!!!!!!!!!!!!
// *********************************
// Set render target to temp frame
renderer::set_render_target(temp_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);
}
// !!!!!!!!!!!!!!! SECOND PASS !!!!!!!!!!!!!!!!
// *********************************
// Set render target to current frame
renderer::set_render_target(frames[(current_frame)]);
// Clear frame
renderer::clear();
// Bind motion blur effect
renderer::bind(motion_blur);
// MVP is now the identity matrix
auto MVP = glm::mat4();
// Set MVP matrix uniform
glUniformMatrix4fv(motion_blur.get_uniform_location("MVP"), 1, GL_FALSE, value_ptr(MVP));
// Bind tempframe to TU 0.
renderer::bind(temp_frame.get_frame(), 0);
// Bind frames[(current_frame + 1) % 2] to TU 1.
renderer::bind(frames[(current_frame + 1) % 2].get_frame(), 1);
// Set tex uniforms
glUniform1i(motion_blur.get_uniform_location("tex"), 0);
glUniform1i(motion_blur.get_uniform_location("previous_frame"), 0);
// Set blend factor (0.9f)
glUniform1i(motion_blur.get_uniform_location("blend_factor"), 0.9f);
// Render screen quad
renderer::render(screen_quad);
// !!!!!!!!!!!!!!! SCREEN PASS !!!!!!!!!!!!!!!!
// Set render target back to the screen
renderer::set_render_target();
renderer::clear();
// Set MVP matrix uniform
glUniformMatrix4fv(tex_eff.get_uniform_location("MVP"), 1, GL_FALSE, value_ptr(MVP));
// Bind texture from frame buffer
renderer::bind(frames[(current_frame)].get_frame(), 0);
// Set the uniform
glUniform1i(tex_eff.get_uniform_location("tex"), 0);
// Render the screen quad
renderer::render(screen_quad);
// *********************************
return true;
}
