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Addition of SDFGI for open world global illumination

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Move GI to a deferred pass
This commit is contained in:
Juan Linietsky 2020-06-25 10:33:28 -03:00
parent b92477d77e
commit 201d606b3d
53 changed files with 8966 additions and 1033 deletions
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145
servers/rendering/rendering_server_scene.cpp
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@ -369,6 +369,11 @@ void RenderingServerScene::instance_set_base(RID p_instance, RID p_base) {
switch (instance->base_type) {
case RS::INSTANCE_LIGHT: {
InstanceLightData *light = static_cast<InstanceLightData *>(instance->base_data);
if (RSG::storage->light_get_type(instance->base) != RS::LIGHT_DIRECTIONAL && light->bake_mode == RS::LIGHT_BAKE_DYNAMIC) {
instance->scenario->dynamic_lights.erase(light->instance);
}
#ifdef DEBUG_ENABLED
if (light->geometries.size()) {
ERR_PRINT("BUG, indexing did not unpair geometries from light.");
@ -976,7 +981,26 @@ void RenderingServerScene::_update_instance(Instance *p_instance) {
InstanceLightData *light = static_cast<InstanceLightData *>(p_instance->base_data);
RSG::scene_render->light_instance_set_transform(light->instance, p_instance->transform);
RSG::scene_render->light_instance_set_aabb(light->instance, p_instance->transform.xform(p_instance->aabb));
light->shadow_dirty = true;
RS::LightBakeMode bake_mode = RSG::storage->light_get_bake_mode(p_instance->base);
if (RSG::storage->light_get_type(p_instance->base) != RS::LIGHT_DIRECTIONAL && bake_mode != light->bake_mode) {
if (light->bake_mode == RS::LIGHT_BAKE_DYNAMIC) {
p_instance->scenario->dynamic_lights.erase(light->instance);
}
light->bake_mode = bake_mode;
if (light->bake_mode == RS::LIGHT_BAKE_DYNAMIC) {
p_instance->scenario->dynamic_lights.push_back(light->instance);
}
}
uint32_t max_sdfgi_cascade = RSG::storage->light_get_max_sdfgi_cascade(p_instance->base);
if (light->max_sdfgi_cascade != max_sdfgi_cascade) {
light->max_sdfgi_cascade = max_sdfgi_cascade; //should most likely make sdfgi dirty in scenario
}
}
if (p_instance->base_type == RS::INSTANCE_REFLECTION_PROBE) {
@ -1788,8 +1812,10 @@ void RenderingServerScene::render_camera(RID p_render_buffers, RID p_camera, RID
} break;
}
_prepare_scene(camera->transform, camera_matrix, ortho, camera->vaspect, camera->env, camera->effects, camera->visible_layers, p_scenario, p_shadow_atlas, RID());
_render_scene(p_render_buffers, camera->transform, camera_matrix, ortho, camera->env, camera->effects, p_scenario, p_shadow_atlas, RID(), -1);
RID environment = _render_get_environment(p_camera, p_scenario);
_prepare_scene(camera->transform, camera_matrix, ortho, camera->vaspect, p_render_buffers, environment, camera->visible_layers, p_scenario, p_shadow_atlas, RID());
_render_scene(p_render_buffers, camera->transform, camera_matrix, ortho, environment, camera->effects, p_scenario, p_shadow_atlas, RID(), -1);
#endif
}
@ -1808,6 +1834,8 @@ void RenderingServerScene::render_camera(RID p_render_buffers, Ref<XRInterface>
Transform world_origin = XRServer::get_singleton()->get_world_origin();
Transform cam_transform = p_interface->get_transform_for_eye(p_eye, world_origin);
RID environment = _render_get_environment(p_camera, p_scenario);
// For stereo render we only prepare for our left eye and then reuse the outcome for our right eye
if (p_eye == XRInterface::EYE_LEFT) {
// Center our transform, we assume basis is equal.
@ -1865,17 +1893,17 @@ void RenderingServerScene::render_camera(RID p_render_buffers, Ref<XRInterface>
mono_transform *= apply_z_shift;
// now prepare our scene with our adjusted transform projection matrix
_prepare_scene(mono_transform, combined_matrix, false, false, camera->env, camera->effects, camera->visible_layers, p_scenario, p_shadow_atlas, RID());
_prepare_scene(mono_transform, combined_matrix, false, false, p_render_buffers, environment, camera->visible_layers, p_scenario, p_shadow_atlas, RID());
} else if (p_eye == XRInterface::EYE_MONO) {
// For mono render, prepare as per usual
_prepare_scene(cam_transform, camera_matrix, false, false, camera->env, camera->effects, camera->visible_layers, p_scenario, p_shadow_atlas, RID());
_prepare_scene(cam_transform, camera_matrix, false, false, p_render_buffers, environment, camera->visible_layers, p_scenario, p_shadow_atlas, RID());
}
// And render our scene...
_render_scene(p_render_buffers, cam_transform, camera_matrix, false, camera->env, camera->effects, p_scenario, p_shadow_atlas, RID(), -1);
_render_scene(p_render_buffers, cam_transform, camera_matrix, false, environment, camera->effects, p_scenario, p_shadow_atlas, RID(), -1);
};
void RenderingServerScene::_prepare_scene(const Transform p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_orthogonal, bool p_cam_vaspect, RID p_force_environment, RID p_force_camera_effects, uint32_t p_visible_layers, RID p_scenario, RID p_shadow_atlas, RID p_reflection_probe, bool p_using_shadows) {
void RenderingServerScene::_prepare_scene(const Transform p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_orthogonal, bool p_cam_vaspect, RID p_render_buffers, RID p_environment, uint32_t p_visible_layers, RID p_scenario, RID p_shadow_atlas, RID p_reflection_probe, bool p_using_shadows) {
// Note, in stereo rendering:
// - p_cam_transform will be a transform in the middle of our two eyes
// - p_cam_projection is a wider frustrum that encompasses both eyes
@ -1887,6 +1915,10 @@ void RenderingServerScene::_prepare_scene(const Transform p_cam_transform, const
RSG::scene_render->set_scene_pass(render_pass);
if (p_render_buffers.is_valid()) {
RSG::scene_render->sdfgi_update(p_render_buffers, p_environment, p_cam_transform.origin); //update conditions for SDFGI (whether its used or not)
}
RENDER_TIMESTAMP("Frustum Culling");
//rasterizer->set_camera(camera->transform, camera_matrix,ortho);
@ -2224,22 +2256,97 @@ void RenderingServerScene::_prepare_scene(const Transform p_cam_transform, const
}
}
}
/* UPDATE SDFGI */
if (p_render_buffers.is_valid()) {
uint32_t cascade_index[8];
uint32_t cascade_sizes[8];
const RID *cascade_ptrs[8];
uint32_t cascade_count = 0;
uint32_t sdfgi_light_cull_count = 0;
uint32_t prev_cascade = 0xFFFFFFFF;
for (int i = 0; i < RSG::scene_render->sdfgi_get_pending_region_count(p_render_buffers); i++) {
AABB region = RSG::scene_render->sdfgi_get_pending_region_bounds(p_render_buffers, i);
uint32_t region_cascade = RSG::scene_render->sdfgi_get_pending_region_cascade(p_render_buffers, i);
if (region_cascade != prev_cascade) {
cascade_sizes[cascade_count] = 0;
cascade_index[cascade_count] = region_cascade;
cascade_ptrs[cascade_count] = &sdfgi_light_cull_result[sdfgi_light_cull_count];
cascade_count++;
sdfgi_light_cull_pass++;
prev_cascade = region_cascade;
}
uint32_t sdfgi_cull_count = scenario->octree.cull_aabb(region, instance_shadow_cull_result, MAX_INSTANCE_CULL);
for (uint32_t j = 0; j < sdfgi_cull_count; j++) {
Instance *ins = instance_shadow_cull_result[j];
bool keep = false;
if (ins->base_type == RS::INSTANCE_LIGHT && ins->visible) {
InstanceLightData *instance_light = (InstanceLightData *)ins->base_data;
if (instance_light->bake_mode != RS::LIGHT_BAKE_STATIC || region_cascade > instance_light->max_sdfgi_cascade) {
continue;
}
if (sdfgi_light_cull_pass != instance_light->sdfgi_cascade_light_pass && sdfgi_light_cull_count < MAX_LIGHTS_CULLED) {
instance_light->sdfgi_cascade_light_pass = sdfgi_light_cull_pass;
sdfgi_light_cull_result[sdfgi_light_cull_count++] = instance_light->instance;
cascade_sizes[cascade_count - 1]++;
}
} else if ((1 << ins->base_type) & RS::INSTANCE_GEOMETRY_MASK) {
if (ins->baked_light) {
keep = true;
}
}
if (!keep) {
// remove, no reason to keep
sdfgi_cull_count--;
SWAP(instance_shadow_cull_result[j], instance_shadow_cull_result[sdfgi_cull_count]);
j--;
}
}
RSG::scene_render->render_sdfgi(p_render_buffers, i, (RasterizerScene::InstanceBase **)instance_shadow_cull_result, sdfgi_cull_count);
//have to save updated cascades, then update static lights.
}
if (sdfgi_light_cull_count) {
RSG::scene_render->render_sdfgi_static_lights(p_render_buffers, cascade_count, cascade_index, cascade_ptrs, cascade_sizes);
}
RSG::scene_render->sdfgi_update_probes(p_render_buffers, p_environment, directional_light_ptr, directional_light_count, scenario->dynamic_lights.ptr(), scenario->dynamic_lights.size());
}
}
void RenderingServerScene::_render_scene(RID p_render_buffers, const Transform p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_orthogonal, RID p_force_environment, RID p_force_camera_effects, RID p_scenario, RID p_shadow_atlas, RID p_reflection_probe, int p_reflection_probe_pass) {
Scenario *scenario = scenario_owner.getornull(p_scenario);
/* ENVIRONMENT */
RID environment;
if (p_force_environment.is_valid()) { //camera has more environment priority
environment = p_force_environment;
} else if (scenario->environment.is_valid()) {
environment = scenario->environment;
} else {
environment = scenario->fallback_environment;
RID RenderingServerScene::_render_get_environment(RID p_camera, RID p_scenario) {
Camera *camera = camera_owner.getornull(p_camera);
if (camera && RSG::scene_render->is_environment(camera->env)) {
return camera->env;
}
Scenario *scenario = scenario_owner.getornull(p_scenario);
if (!scenario) {
return RID();
}
if (RSG::scene_render->is_environment(scenario->environment)) {
return scenario->environment;
}
if (RSG::scene_render->is_environment(scenario->fallback_environment)) {
return scenario->fallback_environment;
}
return RID();
}
void RenderingServerScene::_render_scene(RID p_render_buffers, const Transform p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_orthogonal, RID p_environment, RID p_force_camera_effects, RID p_scenario, RID p_shadow_atlas, RID p_reflection_probe, int p_reflection_probe_pass) {
Scenario *scenario = scenario_owner.getornull(p_scenario);
RID camera_effects;
if (p_force_camera_effects.is_valid()) {
camera_effects = p_force_camera_effects;
@ -2249,7 +2356,7 @@ void RenderingServerScene::_render_scene(RID p_render_buffers, const Transform p
/* PROCESS GEOMETRY AND DRAW SCENE */
RENDER_TIMESTAMP("Render Scene ");
RSG::scene_render->render_scene(p_render_buffers, p_cam_transform, p_cam_projection, p_cam_orthogonal, (RasterizerScene::InstanceBase **)instance_cull_result, instance_cull_count, light_instance_cull_result, light_cull_count + directional_light_count, reflection_probe_instance_cull_result, reflection_probe_cull_count, gi_probe_instance_cull_result, gi_probe_cull_count, decal_instance_cull_result, decal_cull_count, (RasterizerScene::InstanceBase **)lightmap_cull_result, lightmap_cull_count, environment, camera_effects, p_shadow_atlas, p_reflection_probe.is_valid() ? RID() : scenario->reflection_atlas, p_reflection_probe, p_reflection_probe_pass);
RSG::scene_render->render_scene(p_render_buffers, p_cam_transform, p_cam_projection, p_cam_orthogonal, (RasterizerScene::InstanceBase **)instance_cull_result, instance_cull_count, light_instance_cull_result, light_cull_count + directional_light_count, reflection_probe_instance_cull_result, reflection_probe_cull_count, gi_probe_instance_cull_result, gi_probe_cull_count, decal_instance_cull_result, decal_cull_count, (RasterizerScene::InstanceBase **)lightmap_cull_result, lightmap_cull_count, p_environment, camera_effects, p_shadow_atlas, p_reflection_probe.is_valid() ? RID() : scenario->reflection_atlas, p_reflection_probe, p_reflection_probe_pass);
}
void RenderingServerScene::render_empty_scene(RID p_render_buffers, RID p_scenario, RID p_shadow_atlas) {