Method run_forward_pass

libraries/lib-engine/src/renderer-pbr.cpp:320–436

}

void pbr_renderer::run_forward_pass(std::vector<const render_component *> & render_queue, const view_data & view, const render_payload & scene)
{
    if (settings.useDepthPrepass)
    {
        glEnable(GL_DEPTH_TEST);
        glDepthFunc(GL_LEQUAL);
        glDepthMask(GL_FALSE); // depth already comes from the prepass
    }

    // Separate opaque and translucent materials for proper rendering order
    std::vector<const render_component *> opaque_queue;
    std::vector<const render_component *> translucent_queue;

    for (const render_component * render_comp : render_queue)
    {
        base_material * the_material = render_comp->material->material.get().get();
        if (dynamic_cast<polymer_pbr_bubble*>(the_material))
        {
            translucent_queue.push_back(render_comp);
        }
        else
        {
            opaque_queue.push_back(render_comp);
        }
    }

    // Render opaque objects first
    for (const render_component * render_comp : opaque_queue)
    {
        update_per_object_uniform_buffer(
            render_comp->world_matrix,
            render_comp->material->receive_shadow,
            view);

        base_material * the_material = render_comp->material->material.get().get();

        // update_uniforms must be called FIRST because it resets bindpoint to 0.
        // Shadow and IBL textures are then appended to higher texture units.
        the_material->update_uniforms(render_comp->material);

        if (auto * mr = dynamic_cast<polymer_pbr_standard*>(the_material))
        {
            if (settings.shadowsEnabled) mr->update_uniforms_shadow(shadow->get_output_texture());
            if (scene.ibl_cubemap)
            {
                mr->update_uniforms_ibl(scene.ibl_cubemap->ibl_irradianceCubemap.get(),
                    scene.ibl_cubemap->ibl_radianceCubemap.get(),
                    dfg_lut.id());
            }
        }

        if (auto * mr = dynamic_cast<polymer_blinn_phong_standard*>(the_material))
        {
            if (settings.shadowsEnabled) mr->update_uniforms_shadow(shadow->get_output_texture());
        }

        the_material->use();
        render_comp->mesh->draw();