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renderer_viewport.cpp
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/**************************************************************************/
/* renderer_viewport.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "renderer_viewport.h"
#include "core/config/project_settings.h"
#include "core/math/transform_interpolator.h"
#include "core/object/worker_thread_pool.h"
#include "renderer_canvas_cull.h"
#include "renderer_scene_cull.h"
#include "rendering_server_globals.h"
#include "storage/texture_storage.h"
#ifndef XR_DISABLED
#include "servers/xr/xr_interface.h"
#endif // XR_DISABLED
static Transform2D _canvas_get_transform(RendererViewport::Viewport *p_viewport, RendererCanvasCull::Canvas *p_canvas, RendererViewport::Viewport::CanvasData *p_canvas_data, const Vector2 &p_vp_size) {
Transform2D xf = p_viewport->global_transform;
Vector2 pixel_snap_offset;
if (p_viewport->snap_2d_transforms_to_pixel) {
// We use `floor(p + 0.5)` to snap canvas items, but `ceil(p - 0.5)`
// to snap viewport transform because the viewport transform is inverse
// to the camera transform. Also, if the viewport size is not divisible
// by 2, the center point is offset by 0.5 px and we need to add 0.5
// before rounding to cancel it out.
pixel_snap_offset.x = (p_viewport->size.width % 2) ? 0.0 : -0.5;
pixel_snap_offset.y = (p_viewport->size.height % 2) ? 0.0 : -0.5;
}
float scale = 1.0;
if (p_viewport->canvas_map.has(p_canvas->parent)) {
Transform2D c_xform = p_viewport->canvas_map[p_canvas->parent].transform;
if (p_viewport->snap_2d_transforms_to_pixel) {
c_xform.columns[2] = (c_xform.columns[2] * p_canvas->parent_scale + pixel_snap_offset).ceil() / p_canvas->parent_scale;
}
xf = xf * c_xform;
scale = p_canvas->parent_scale;
}
Transform2D c_xform = p_canvas_data->transform;
if (p_viewport->snap_2d_transforms_to_pixel) {
c_xform.columns[2] = (c_xform.columns[2] + pixel_snap_offset).ceil();
}
xf = xf * c_xform;
if (scale != 1.0 && !RSG::canvas->disable_scale) {
Vector2 pivot = p_vp_size * 0.5;
Transform2D xfpivot;
xfpivot.set_origin(pivot);
Transform2D xfscale;
xfscale.scale(Vector2(scale, scale));
xf = xfpivot.affine_inverse() * xf;
xf = xfscale * xf;
xf = xfpivot * xf;
}
return xf;
}
Vector<RendererViewport::Viewport *> RendererViewport::_sort_active_viewports() {
// We need to sort the viewports in a "topological order", children first and
// parents last. We also need to keep sibling viewports in the original order
// from top to bottom.
Vector<Viewport *> result;
List<Viewport *> nodes;
for (int i = active_viewports.size() - 1; i >= 0; --i) {
Viewport *viewport = active_viewports[i];
if (viewport->parent.is_valid()) {
continue;
}
nodes.push_back(viewport);
result.insert(0, viewport);
}
while (!nodes.is_empty()) {
const Viewport *node = nodes.front()->get();
nodes.pop_front();
for (int i = active_viewports.size() - 1; i >= 0; --i) {
Viewport *child = active_viewports[i];
if (child->parent != node->self) {
continue;
}
if (!nodes.find(child)) {
nodes.push_back(child);
result.insert(0, child);
}
}
}
return result;
}
void RendererViewport::_configure_3d_render_buffers(Viewport *p_viewport) {
if (p_viewport->render_buffers.is_valid()) {
if (p_viewport->size.width == 0 || p_viewport->size.height == 0) {
p_viewport->render_buffers.unref();
} else {
const float EPSILON = 0.0001;
float scaling_3d_scale = p_viewport->scaling_3d_scale;
RS::ViewportScaling3DMode scaling_3d_mode = p_viewport->scaling_3d_mode;
bool upscaler_available = p_viewport->fsr_enabled;
RS::ViewportScaling3DType scaling_type = RS::scaling_3d_mode_type(scaling_3d_mode);
if ((!upscaler_available || (scaling_type == RS::VIEWPORT_SCALING_3D_TYPE_SPATIAL)) && scaling_3d_scale >= (1.0 - EPSILON) && scaling_3d_scale <= (1.0 + EPSILON)) {
// No 3D scaling for spatial modes? Ignore scaling mode, this just introduces overhead.
// - Mobile can't perform optimal path
// - FSR does an extra pass (or 2 extra passes if 2D-MSAA is enabled)
// Scaling = 1.0 on FSR2 and MetalFX temporal has benefits
scaling_3d_scale = 1.0;
scaling_3d_mode = RS::VIEWPORT_SCALING_3D_MODE_OFF;
}
if (scaling_3d_mode == RS::VIEWPORT_SCALING_3D_MODE_METALFX_TEMPORAL && !RD::get_singleton()->has_feature(RD::SUPPORTS_METALFX_TEMPORAL)) {
if (RD::get_singleton()->has_feature(RD::SUPPORTS_METALFX_SPATIAL)) {
// Prefer MetalFX spatial if it is supported, which will be much more efficient than FSR2,
// as the hardware already will struggle with FSR2.
scaling_3d_mode = RS::VIEWPORT_SCALING_3D_MODE_METALFX_SPATIAL;
WARN_PRINT_ONCE("MetalFX temporal upscaling is not supported by the current renderer or hardware. Falling back to MetalFX Spatial scaling.");
} else {
scaling_3d_mode = RS::VIEWPORT_SCALING_3D_MODE_FSR2;
WARN_PRINT_ONCE("MetalFX upscaling is not supported by the current renderer or hardware. Falling back to FSR 2 scaling.");
}
scaling_type = RS::scaling_3d_mode_type(scaling_3d_mode);
}
if (scaling_3d_mode == RS::VIEWPORT_SCALING_3D_MODE_METALFX_SPATIAL && !RD::get_singleton()->has_feature(RD::SUPPORTS_METALFX_SPATIAL)) {
scaling_3d_mode = RS::VIEWPORT_SCALING_3D_MODE_FSR;
WARN_PRINT_ONCE("MetalFX spatial upscaling is not supported by the current renderer or hardware. Falling back to FSR scaling.");
}
RS::ViewportMSAA msaa_3d = p_viewport->msaa_3d;
// If MetalFX Temporal upscaling is supported, verify limits.
if (scaling_3d_mode == RS::VIEWPORT_SCALING_3D_MODE_METALFX_TEMPORAL) {
double min_scale = (double)RD::get_singleton()->limit_get(RD::LIMIT_METALFX_TEMPORAL_SCALER_MIN_SCALE) / 1000'000.0;
double max_scale = (double)RD::get_singleton()->limit_get(RD::LIMIT_METALFX_TEMPORAL_SCALER_MAX_SCALE) / 1000'000.0;
if ((double)scaling_3d_scale < min_scale || (double)scaling_3d_scale > max_scale) {
scaling_3d_mode = RS::VIEWPORT_SCALING_3D_MODE_FSR2;
WARN_PRINT_ONCE(vformat("MetalFX temporal upscaling scale is outside limits; scale must be between %f and %f. Falling back to FSR 2 3D resolution scaling.", min_scale, max_scale));
} else if (msaa_3d != RS::VIEWPORT_MSAA_DISABLED) {
WARN_PRINT_ONCE("MetalFX temporal upscaling does not support 3D MSAA. Disabling 3D MSAA internally.");
msaa_3d = RS::VIEWPORT_MSAA_DISABLED;
}
}
bool scaling_3d_is_not_bilinear = scaling_3d_mode != RS::VIEWPORT_SCALING_3D_MODE_OFF && scaling_3d_mode != RS::VIEWPORT_SCALING_3D_MODE_BILINEAR;
bool use_taa = p_viewport->use_taa;
if (scaling_3d_is_not_bilinear && (scaling_3d_scale >= (1.0 + EPSILON))) {
// FSR and MetalFX is not designed for downsampling.
// Fall back to bilinear scaling.
WARN_PRINT_ONCE("FSR 3D resolution scaling is not designed for downsampling. Falling back to bilinear 3D resolution scaling.");
scaling_3d_mode = RS::VIEWPORT_SCALING_3D_MODE_BILINEAR;
}
if (scaling_3d_is_not_bilinear && !upscaler_available) {
// FSR is not actually available.
// Fall back to bilinear scaling.
WARN_PRINT_ONCE("FSR 3D resolution scaling is not available. Falling back to bilinear 3D resolution scaling.");
scaling_3d_mode = RS::VIEWPORT_SCALING_3D_MODE_BILINEAR;
}
if (use_taa && (scaling_type == RS::VIEWPORT_SCALING_3D_TYPE_TEMPORAL)) {
// Temporal upscalers can't be used with TAA.
// Turn it off and prefer using the temporal upscaler.
WARN_PRINT_ONCE("FSR 2 or MetalFX Temporal is not compatible with TAA. Disabling TAA internally.");
use_taa = false;
}
int target_width;
int target_height;
int render_width;
int render_height;
switch (scaling_3d_mode) {
case RS::VIEWPORT_SCALING_3D_MODE_BILINEAR:
// Clamp 3D rendering resolution to reasonable values supported on most hardware.
// This prevents freezing the engine or outright crashing on lower-end GPUs.
target_width = p_viewport->size.width;
target_height = p_viewport->size.height;
render_width = CLAMP(target_width * scaling_3d_scale, 1, 16384);
render_height = CLAMP(target_height * scaling_3d_scale, 1, 16384);
break;
case RS::VIEWPORT_SCALING_3D_MODE_METALFX_SPATIAL:
case RS::VIEWPORT_SCALING_3D_MODE_METALFX_TEMPORAL:
case RS::VIEWPORT_SCALING_3D_MODE_FSR:
case RS::VIEWPORT_SCALING_3D_MODE_FSR2:
target_width = p_viewport->size.width;
target_height = p_viewport->size.height;
render_width = MAX(target_width * scaling_3d_scale, 1.0); // target_width / (target_width * scaling)
render_height = MAX(target_height * scaling_3d_scale, 1.0);
break;
case RS::VIEWPORT_SCALING_3D_MODE_OFF:
target_width = p_viewport->size.width;
target_height = p_viewport->size.height;
render_width = target_width;
render_height = target_height;
break;
default:
// This is an unknown mode.
WARN_PRINT_ONCE(vformat("Unknown scaling mode: %d. Disabling 3D resolution scaling.", scaling_3d_mode));
scaling_3d_mode = RS::VIEWPORT_SCALING_3D_MODE_OFF;
scaling_3d_scale = 1.0;
target_width = p_viewport->size.width;
target_height = p_viewport->size.height;
render_width = target_width;
render_height = target_height;
break;
}
uint32_t jitter_phase_count = 0;
if (scaling_type == RS::VIEWPORT_SCALING_3D_TYPE_TEMPORAL) {
// Implementation has been copied from ffxFsr2GetJitterPhaseCount.
// Also used for MetalFX Temporal scaling.
jitter_phase_count = uint32_t(8.0f * pow(float(target_width) / render_width, 2.0f));
} else if (use_taa) {
// Default jitter count for TAA.
jitter_phase_count = 16;
}
p_viewport->internal_size = Size2(render_width, render_height);
p_viewport->jitter_phase_count = jitter_phase_count;
// At resolution scales lower than 1.0, use negative texture mipmap bias
// to compensate for the loss of sharpness.
const float texture_mipmap_bias = log2f(MIN(scaling_3d_scale, 1.0)) + p_viewport->texture_mipmap_bias;
RenderSceneBuffersConfiguration rb_config;
rb_config.set_render_target(p_viewport->render_target);
rb_config.set_internal_size(Size2i(render_width, render_height));
rb_config.set_target_size(Size2(target_width, target_height));
rb_config.set_view_count(p_viewport->view_count);
rb_config.set_scaling_3d_mode(scaling_3d_mode);
rb_config.set_msaa_3d(msaa_3d);
rb_config.set_screen_space_aa(p_viewport->screen_space_aa);
rb_config.set_fsr_sharpness(p_viewport->fsr_sharpness);
rb_config.set_texture_mipmap_bias(texture_mipmap_bias);
rb_config.set_anisotropic_filtering_level(p_viewport->anisotropic_filtering_level);
rb_config.set_use_taa(use_taa);
rb_config.set_use_debanding(p_viewport->use_debanding);
p_viewport->render_buffers->configure(&rb_config);
}
}
}
void RendererViewport::_draw_3d(Viewport *p_viewport) {
#ifndef _3D_DISABLED
RENDER_TIMESTAMP("> Render 3D Scene");
Ref<XRInterface> xr_interface;
#ifndef XR_DISABLED
if (p_viewport->use_xr && XRServer::get_singleton() != nullptr) {
xr_interface = XRServer::get_singleton()->get_primary_interface();
}
#endif // XR_DISABLED
if (p_viewport->use_occlusion_culling) {
if (p_viewport->occlusion_buffer_dirty) {
float aspect = p_viewport->size.aspect();
int max_size = occlusion_rays_per_thread * WorkerThreadPool::get_singleton()->get_thread_count();
int viewport_size = p_viewport->size.width * p_viewport->size.height;
max_size = CLAMP(max_size, viewport_size / (32 * 32), viewport_size / (2 * 2)); // At least one depth pixel for every 16x16 region. At most one depth pixel for every 2x2 region.
float height = Math::sqrt(max_size / aspect);
Size2i new_size = Size2i(height * aspect, height);
RendererSceneOcclusionCull::get_singleton()->buffer_set_size(p_viewport->self, new_size);
p_viewport->occlusion_buffer_dirty = false;
}
}
float screen_mesh_lod_threshold = p_viewport->mesh_lod_threshold / float(p_viewport->size.width);
RSG::scene->render_camera(p_viewport->render_buffers, p_viewport->camera, p_viewport->scenario, p_viewport->self, p_viewport->internal_size, p_viewport->jitter_phase_count, screen_mesh_lod_threshold, p_viewport->shadow_atlas, xr_interface, &p_viewport->render_info);
RENDER_TIMESTAMP("< Render 3D Scene");
#endif // _3D_DISABLED
}
void RendererViewport::_draw_viewport(Viewport *p_viewport) {
if (p_viewport->measure_render_time) {
String rt_id = "vp_begin_" + itos(p_viewport->self.get_id());
RSG::utilities->capture_timestamp(rt_id);
timestamp_vp_map[rt_id] = p_viewport->self;
}
if (OS::get_singleton()->get_current_rendering_method() == "gl_compatibility") {
// This is currently needed for GLES to keep the current window being rendered to up to date
DisplayServer::get_singleton()->gl_window_make_current(p_viewport->viewport_to_screen);
}
/* Camera should always be BEFORE any other 3D */
bool can_draw_2d = !p_viewport->disable_2d && p_viewport->view_count == 1; // Stereo rendering does not support 2D, no depth data
bool scenario_draw_canvas_bg = false; //draw canvas, or some layer of it, as BG for 3D instead of in front
int scenario_canvas_max_layer = 0;
bool force_clear_render_target = false;
for (int i = 0; i < RS::VIEWPORT_RENDER_INFO_TYPE_MAX; i++) {
for (int j = 0; j < RS::VIEWPORT_RENDER_INFO_MAX; j++) {
p_viewport->render_info.info[i][j] = 0;
}
}
if (RSG::scene->is_scenario(p_viewport->scenario)) {
RID environment = RSG::scene->scenario_get_environment(p_viewport->scenario);
if (RSG::scene->is_environment(environment)) {
if (can_draw_2d && !viewport_is_environment_disabled(p_viewport)) {
scenario_draw_canvas_bg = RSG::scene->environment_get_background(environment) == RS::ENV_BG_CANVAS;
scenario_canvas_max_layer = RSG::scene->environment_get_canvas_max_layer(environment);
} else if (RSG::scene->environment_get_background(environment) == RS::ENV_BG_CANVAS) {
// The scene renderer will still copy over the last frame, so we need to clear the render target.
force_clear_render_target = true;
}
}
}
bool can_draw_3d = RSG::scene->is_camera(p_viewport->camera) && !p_viewport->disable_3d;
if ((scenario_draw_canvas_bg || can_draw_3d) && !p_viewport->render_buffers.is_valid()) {
//wants to draw 3D but there is no render buffer, create
p_viewport->render_buffers = RSG::scene->render_buffers_create();
_configure_3d_render_buffers(p_viewport);
}
Color bgcolor = p_viewport->transparent_bg ? Color(0, 0, 0, 0) : RSG::texture_storage->get_default_clear_color();
if (p_viewport->clear_mode != RS::VIEWPORT_CLEAR_NEVER) {
RSG::texture_storage->render_target_request_clear(p_viewport->render_target, bgcolor);
if (p_viewport->clear_mode == RS::VIEWPORT_CLEAR_ONLY_NEXT_FRAME) {
p_viewport->clear_mode = RS::VIEWPORT_CLEAR_NEVER;
}
}
if (!scenario_draw_canvas_bg && can_draw_3d) {
if (force_clear_render_target) {
RSG::texture_storage->render_target_do_clear_request(p_viewport->render_target);
}
_draw_3d(p_viewport);
}
if (can_draw_2d) {
RBMap<Viewport::CanvasKey, Viewport::CanvasData *> canvas_map;
Rect2 clip_rect(0, 0, p_viewport->size.x, p_viewport->size.y);
RendererCanvasRender::Light *lights = nullptr;
RendererCanvasRender::Light *lights_with_shadow = nullptr;
RendererCanvasRender::Light *directional_lights = nullptr;
RendererCanvasRender::Light *directional_lights_with_shadow = nullptr;
if (p_viewport->sdf_active) {
// Process SDF.
Rect2 sdf_rect = RSG::texture_storage->render_target_get_sdf_rect(p_viewport->render_target);
RendererCanvasRender::LightOccluderInstance *occluders = nullptr;
// Make list of occluders.
for (KeyValue<RID, Viewport::CanvasData> &E : p_viewport->canvas_map) {
RendererCanvasCull::Canvas *canvas = static_cast<RendererCanvasCull::Canvas *>(E.value.canvas);
Transform2D xf = _canvas_get_transform(p_viewport, canvas, &E.value, clip_rect.size);
for (RendererCanvasRender::LightOccluderInstance *F : canvas->occluders) {
if (!F->enabled) {
continue;
}
if (!RSG::canvas->_interpolation_data.interpolation_enabled || !F->interpolated) {
F->xform_cache = xf * F->xform_curr;
} else {
real_t f = Engine::get_singleton()->get_physics_interpolation_fraction();
TransformInterpolator::interpolate_transform_2d(F->xform_prev, F->xform_curr, F->xform_cache, f);
F->xform_cache = xf * F->xform_cache;
}
if (sdf_rect.intersects_transformed(F->xform_cache, F->aabb_cache)) {
F->next = occluders;
occluders = F;
}
}
}
RSG::canvas_render->render_sdf(p_viewport->render_target, occluders);
RSG::texture_storage->render_target_mark_sdf_enabled(p_viewport->render_target, true);
p_viewport->sdf_active = false; // If used, gets set active again.
} else {
RSG::texture_storage->render_target_mark_sdf_enabled(p_viewport->render_target, false);
}
Rect2 shadow_rect;
int shadow_count = 0;
int directional_light_count = 0;
RENDER_TIMESTAMP("Cull 2D Lights");
for (KeyValue<RID, Viewport::CanvasData> &E : p_viewport->canvas_map) {
RendererCanvasCull::Canvas *canvas = static_cast<RendererCanvasCull::Canvas *>(E.value.canvas);
Transform2D xf = _canvas_get_transform(p_viewport, canvas, &E.value, clip_rect.size);
// Find lights in canvas.
for (RendererCanvasRender::Light *F : canvas->lights) {
RendererCanvasRender::Light *cl = F;
if (cl->enabled && cl->texture.is_valid()) {
//not super efficient..
Size2 tsize = RSG::texture_storage->texture_size_with_proxy(cl->texture);
tsize *= cl->scale;
Vector2 offset = tsize / 2.0;
Rect2 local_rect = Rect2(-offset + cl->texture_offset, tsize);
if (!RSG::canvas->_interpolation_data.interpolation_enabled || !cl->interpolated) {
cl->xform_cache = xf * cl->xform_curr;
} else {
real_t f = Engine::get_singleton()->get_physics_interpolation_fraction();
TransformInterpolator::interpolate_transform_2d(cl->xform_prev, cl->xform_curr, cl->xform_cache, f);
cl->xform_cache = xf * cl->xform_cache;
}
cl->rect_cache = cl->xform_cache.xform(local_rect);
if (clip_rect.intersects(cl->rect_cache)) {
cl->filter_next_ptr = lights;
lights = cl;
Transform2D scale;
scale.scale(local_rect.size);
scale.columns[2] = local_rect.position;
cl->light_shader_xform = cl->xform_cache * scale;
if (cl->use_shadow) {
cl->shadows_next_ptr = lights_with_shadow;
if (lights_with_shadow == nullptr) {
shadow_rect = cl->rect_cache;
} else {
shadow_rect = shadow_rect.merge(cl->rect_cache);
}
lights_with_shadow = cl;
cl->radius_cache = local_rect.size.length();
}
}
}
}
for (RendererCanvasRender::Light *F : canvas->directional_lights) {
RendererCanvasRender::Light *cl = F;
if (cl->enabled) {
cl->filter_next_ptr = directional_lights;
directional_lights = cl;
if (!RSG::canvas->_interpolation_data.interpolation_enabled || !cl->interpolated) {
cl->xform_cache = xf * cl->xform_curr;
} else {
real_t f = Engine::get_singleton()->get_physics_interpolation_fraction();
TransformInterpolator::interpolate_transform_2d(cl->xform_prev, cl->xform_curr, cl->xform_cache, f);
cl->xform_cache = xf * cl->xform_cache;
}
cl->xform_cache.columns[2] = Vector2(); //translation is pointless
if (cl->use_shadow) {
cl->shadows_next_ptr = directional_lights_with_shadow;
directional_lights_with_shadow = cl;
}
directional_light_count++;
if (directional_light_count == RS::MAX_2D_DIRECTIONAL_LIGHTS) {
break;
}
}
}
canvas_map[Viewport::CanvasKey(E.key, E.value.layer, E.value.sublayer)] = &E.value;
}
if (lights_with_shadow) {
//update shadows if any
RendererCanvasRender::LightOccluderInstance *occluders = nullptr;
RENDER_TIMESTAMP("> Render PointLight2D Shadows");
RENDER_TIMESTAMP("Cull LightOccluder2Ds");
//make list of occluders
for (KeyValue<RID, Viewport::CanvasData> &E : p_viewport->canvas_map) {
RendererCanvasCull::Canvas *canvas = static_cast<RendererCanvasCull::Canvas *>(E.value.canvas);
Transform2D xf = _canvas_get_transform(p_viewport, canvas, &E.value, clip_rect.size);
for (RendererCanvasRender::LightOccluderInstance *F : canvas->occluders) {
if (!F->enabled) {
continue;
}
if (!RSG::canvas->_interpolation_data.interpolation_enabled || !F->interpolated) {
F->xform_cache = xf * F->xform_curr;
} else {
real_t f = Engine::get_singleton()->get_physics_interpolation_fraction();
TransformInterpolator::interpolate_transform_2d(F->xform_prev, F->xform_curr, F->xform_cache, f);
F->xform_cache = xf * F->xform_cache;
}
if (shadow_rect.intersects_transformed(F->xform_cache, F->aabb_cache)) {
F->next = occluders;
occluders = F;
}
}
}
//update the light shadowmaps with them
RendererCanvasRender::Light *light = lights_with_shadow;
while (light) {
RENDER_TIMESTAMP("Render PointLight2D Shadow");
RSG::canvas_render->light_update_shadow(light->light_internal, shadow_count++, light->xform_cache.affine_inverse(), light->item_shadow_mask, light->radius_cache / 1000.0, light->radius_cache * 1.1, occluders, light->rect_cache);
light = light->shadows_next_ptr;
}
RENDER_TIMESTAMP("< Render PointLight2D Shadows");
}
if (directional_lights_with_shadow) {
//update shadows if any
RendererCanvasRender::Light *light = directional_lights_with_shadow;
while (light) {
Vector2 light_dir = -light->xform_cache.columns[1].normalized(); // Y is light direction
float cull_distance = light->directional_distance;
Vector2 light_dir_sign;
light_dir_sign.x = (Math::abs(light_dir.x) < CMP_EPSILON) ? 0.0 : ((light_dir.x > 0.0) ? 1.0 : -1.0);
light_dir_sign.y = (Math::abs(light_dir.y) < CMP_EPSILON) ? 0.0 : ((light_dir.y > 0.0) ? 1.0 : -1.0);
Vector2 points[6];
int point_count = 0;
for (int j = 0; j < 4; j++) {
static const Vector2 signs[4] = { Vector2(1, 1), Vector2(1, 0), Vector2(0, 0), Vector2(0, 1) };
Vector2 sign_cmp = signs[j] * 2.0 - Vector2(1.0, 1.0);
Vector2 point = clip_rect.position + clip_rect.size * signs[j];
if (sign_cmp == light_dir_sign) {
//both point in same direction, plot offsetted
points[point_count++] = point + light_dir * cull_distance;
} else if (sign_cmp.x == light_dir_sign.x || sign_cmp.y == light_dir_sign.y) {
int next_j = (j + 1) % 4;
Vector2 next_sign_cmp = signs[next_j] * 2.0 - Vector2(1.0, 1.0);
//one point in the same direction, plot segment
if (next_sign_cmp.x == light_dir_sign.x || next_sign_cmp.y == light_dir_sign.y) {
if (light_dir_sign.x != 0.0 || light_dir_sign.y != 0.0) {
points[point_count++] = point;
}
points[point_count++] = point + light_dir * cull_distance;
} else {
points[point_count++] = point + light_dir * cull_distance;
if (light_dir_sign.x != 0.0 || light_dir_sign.y != 0.0) {
points[point_count++] = point;
}
}
} else {
//plot normally
points[point_count++] = point;
}
}
Vector2 xf_points[6];
RendererCanvasRender::LightOccluderInstance *occluders = nullptr;
RENDER_TIMESTAMP("> Render DirectionalLight2D Shadows");
// Make list of occluders.
for (KeyValue<RID, Viewport::CanvasData> &E : p_viewport->canvas_map) {
RendererCanvasCull::Canvas *canvas = static_cast<RendererCanvasCull::Canvas *>(E.value.canvas);
Transform2D xf = _canvas_get_transform(p_viewport, canvas, &E.value, clip_rect.size);
for (RendererCanvasRender::LightOccluderInstance *F : canvas->occluders) {
if (!F->enabled) {
continue;
}
if (!RSG::canvas->_interpolation_data.interpolation_enabled || !F->interpolated) {
F->xform_cache = xf * F->xform_curr;
} else {
real_t f = Engine::get_singleton()->get_physics_interpolation_fraction();
TransformInterpolator::interpolate_transform_2d(F->xform_prev, F->xform_curr, F->xform_cache, f);
F->xform_cache = xf * F->xform_cache;
}
Transform2D localizer = F->xform_cache.affine_inverse();
for (int j = 0; j < point_count; j++) {
xf_points[j] = localizer.xform(points[j]);
}
if (F->aabb_cache.intersects_filled_polygon(xf_points, point_count)) {
F->next = occluders;
occluders = F;
}
}
}
RSG::canvas_render->light_update_directional_shadow(light->light_internal, shadow_count++, light->xform_cache, light->item_shadow_mask, cull_distance, clip_rect, occluders);
light = light->shadows_next_ptr;
}
RENDER_TIMESTAMP("< Render DirectionalLight2D Shadows");
}
if (scenario_draw_canvas_bg && canvas_map.begin() && canvas_map.begin()->key.get_layer() > scenario_canvas_max_layer) {
// There may be an outstanding clear request if a clear was requested, but no 2D elements were drawn.
// Clear now otherwise we copy over garbage from the render target.
RSG::texture_storage->render_target_do_clear_request(p_viewport->render_target);
if (!can_draw_3d) {
RSG::scene->render_empty_scene(p_viewport->render_buffers, p_viewport->scenario, p_viewport->shadow_atlas);
} else {
_draw_3d(p_viewport);
}
scenario_draw_canvas_bg = false;
}
for (const KeyValue<Viewport::CanvasKey, Viewport::CanvasData *> &E : canvas_map) {
RendererCanvasCull::Canvas *canvas = static_cast<RendererCanvasCull::Canvas *>(E.value->canvas);
Transform2D xform = _canvas_get_transform(p_viewport, canvas, E.value, clip_rect.size);
RendererCanvasRender::Light *canvas_lights = nullptr;
RendererCanvasRender::Light *canvas_directional_lights = nullptr;
RendererCanvasRender::Light *ptr = lights;
while (ptr) {
if (E.value->layer >= ptr->layer_min && E.value->layer <= ptr->layer_max) {
ptr->next_ptr = canvas_lights;
canvas_lights = ptr;
}
ptr = ptr->filter_next_ptr;
}
ptr = directional_lights;
while (ptr) {
if (E.value->layer >= ptr->layer_min && E.value->layer <= ptr->layer_max) {
ptr->next_ptr = canvas_directional_lights;
canvas_directional_lights = ptr;
}
ptr = ptr->filter_next_ptr;
}
RSG::canvas->render_canvas(p_viewport->render_target, canvas, xform, canvas_lights, canvas_directional_lights, clip_rect, p_viewport->texture_filter, p_viewport->texture_repeat, p_viewport->snap_2d_transforms_to_pixel, p_viewport->snap_2d_vertices_to_pixel, p_viewport->canvas_cull_mask, &p_viewport->render_info);
if (RSG::canvas->was_sdf_used()) {
p_viewport->sdf_active = true;
}
if (scenario_draw_canvas_bg && E.key.get_layer() >= scenario_canvas_max_layer) {
// There may be an outstanding clear request if a clear was requested, but no 2D elements were drawn.
// Clear now otherwise we copy over garbage from the render target.
RSG::texture_storage->render_target_do_clear_request(p_viewport->render_target);
if (!can_draw_3d) {
RSG::scene->render_empty_scene(p_viewport->render_buffers, p_viewport->scenario, p_viewport->shadow_atlas);
} else {
_draw_3d(p_viewport);
}
scenario_draw_canvas_bg = false;
}
}
if (scenario_draw_canvas_bg) {
// There may be an outstanding clear request if a clear was requested, but no 2D elements were drawn.
// Clear now otherwise we copy over garbage from the render target.
RSG::texture_storage->render_target_do_clear_request(p_viewport->render_target);
if (!can_draw_3d) {
RSG::scene->render_empty_scene(p_viewport->render_buffers, p_viewport->scenario, p_viewport->shadow_atlas);
} else {
_draw_3d(p_viewport);
}
}
}
if (RSG::texture_storage->render_target_is_clear_requested(p_viewport->render_target)) {
//was never cleared in the end, force clear it
RSG::texture_storage->render_target_do_clear_request(p_viewport->render_target);
}
if (RSG::texture_storage->render_target_get_msaa_needs_resolve(p_viewport->render_target)) {
WARN_PRINT_ONCE("2D MSAA is enabled while there is no 2D content. Disable 2D MSAA for better performance.");
RSG::texture_storage->render_target_do_msaa_resolve(p_viewport->render_target);
}
if (p_viewport->measure_render_time) {
String rt_id = "vp_end_" + itos(p_viewport->self.get_id());
RSG::utilities->capture_timestamp(rt_id);
timestamp_vp_map[rt_id] = p_viewport->self;
}
}
void RendererViewport::draw_viewports(bool p_swap_buffers) {
timestamp_vp_map.clear();
#ifndef XR_DISABLED
// get our xr interface in case we need it
Ref<XRInterface> xr_interface;
XRServer *xr_server = XRServer::get_singleton();
if (xr_server != nullptr) {
// let our XR server know we're about to render our frames so we can get our frame timing
xr_server->pre_render();
// retrieve the interface responsible for rendering
xr_interface = xr_server->get_primary_interface();
}
#endif // XR_DISABLED
if (Engine::get_singleton()->is_editor_hint()) {
RSG::texture_storage->set_default_clear_color(GLOBAL_GET("rendering/environment/defaults/default_clear_color"));
}
if (sorted_active_viewports_dirty) {
sorted_active_viewports = _sort_active_viewports();
sorted_active_viewports_dirty = false;
}
HashMap<DisplayServer::WindowID, Vector<BlitToScreen>> blit_to_screen_list;
//draw viewports
RENDER_TIMESTAMP("> Render Viewports");
//determine what is visible
draw_viewports_pass++;
for (int i = sorted_active_viewports.size() - 1; i >= 0; i--) { //to compute parent dependency, must go in reverse draw order
Viewport *vp = sorted_active_viewports[i];
if (vp->update_mode == RS::VIEWPORT_UPDATE_DISABLED) {
continue;
}
if (!vp->render_target.is_valid()) {
continue;
}
//ERR_CONTINUE(!vp->render_target.is_valid());
bool visible = vp->viewport_to_screen_rect != Rect2();
#ifndef XR_DISABLED
if (vp->use_xr) {
if (xr_interface.is_valid()) {
// Ignore update mode we have to commit frames to our XR interface
visible = true;
// Override our size, make sure it matches our required size and is created as a stereo target
Size2 xr_size = xr_interface->get_render_target_size();
_viewport_set_size(vp, xr_size.width, xr_size.height, xr_interface->get_view_count());
} else {
// don't render anything
visible = false;
vp->size = Size2();
}
} else
#endif // XR_DISABLED
{
if (vp->update_mode == RS::VIEWPORT_UPDATE_ALWAYS || vp->update_mode == RS::VIEWPORT_UPDATE_ONCE) {
visible = true;
}
if (vp->update_mode == RS::VIEWPORT_UPDATE_WHEN_VISIBLE && RSG::texture_storage->render_target_was_used(vp->render_target)) {
visible = true;
}
if (vp->update_mode == RS::VIEWPORT_UPDATE_WHEN_PARENT_VISIBLE) {
Viewport *parent = viewport_owner.get_or_null(vp->parent);
if (parent && parent->last_pass == draw_viewports_pass) {
visible = true;
}
}
}
visible = visible && vp->size.x > 1 && vp->size.y > 1;
if (visible) {
vp->last_pass = draw_viewports_pass;
}
}
int vertices_drawn = 0;
int objects_drawn = 0;
int draw_calls_used = 0;
for (int i = 0; i < sorted_active_viewports.size(); i++) {
Viewport *vp = sorted_active_viewports[i];
if (vp->last_pass != draw_viewports_pass) {
continue; //should not draw
}
RENDER_TIMESTAMP("> Render Viewport " + itos(i));
RSG::texture_storage->render_target_set_as_unused(vp->render_target);
#ifndef XR_DISABLED
if (vp->use_xr && xr_interface.is_valid()) {
// Inform XR interface we're about to render its viewport,
// if this returns false we don't render.
// This usually is a result of the player taking off their headset and OpenXR telling us to skip
// rendering frames.
if (xr_interface->pre_draw_viewport(vp->render_target)) {
RSG::texture_storage->render_target_set_override(vp->render_target,
xr_interface->get_color_texture(),
xr_interface->get_depth_texture(),
xr_interface->get_velocity_texture(),
xr_interface->get_velocity_depth_texture());
RSG::texture_storage->render_target_set_velocity_target_size(vp->render_target, xr_interface->get_velocity_target_size());
if (xr_interface->get_velocity_texture().is_valid()) {
_viewport_set_force_motion_vectors(vp, true);
} else {
_viewport_set_force_motion_vectors(vp, false);
}
RSG::texture_storage->render_target_set_render_region(vp->render_target, xr_interface->get_render_region());
// render...
RSG::scene->set_debug_draw_mode(vp->debug_draw);
// and draw viewport
_draw_viewport(vp);
// commit our eyes
Vector<BlitToScreen> blits = xr_interface->post_draw_viewport(vp->render_target, vp->viewport_to_screen_rect);
if (vp->viewport_to_screen != DisplayServer::INVALID_WINDOW_ID) {
if (RSG::rasterizer->is_opengl()) {
if (blits.size() > 0) {
RSG::rasterizer->blit_render_targets_to_screen(vp->viewport_to_screen, blits.ptr(), blits.size());
RSG::rasterizer->gl_end_frame(p_swap_buffers);
}
} else if (blits.size() > 0) {
if (!blit_to_screen_list.has(vp->viewport_to_screen)) {
blit_to_screen_list[vp->viewport_to_screen] = Vector<BlitToScreen>();
}
for (int b = 0; b < blits.size(); b++) {
blit_to_screen_list[vp->viewport_to_screen].push_back(blits[b]);
}
}
}
}
} else
#endif // XR_DISABLED
{
RSG::scene->set_debug_draw_mode(vp->debug_draw);
// render standard mono camera
_draw_viewport(vp);
if (vp->viewport_to_screen != DisplayServer::INVALID_WINDOW_ID && (!vp->viewport_render_direct_to_screen || !RSG::rasterizer->is_low_end())) {
//copy to screen if set as such
BlitToScreen blit;
blit.render_target = vp->render_target;
if (vp->viewport_to_screen_rect != Rect2()) {
blit.dst_rect = vp->viewport_to_screen_rect;
} else {
blit.dst_rect.position = Vector2();
blit.dst_rect.size = vp->size;
}
if (RSG::rasterizer->is_opengl()) {
RSG::rasterizer->blit_render_targets_to_screen(vp->viewport_to_screen, &blit, 1);
RSG::rasterizer->gl_end_frame(p_swap_buffers);
} else {
Vector<BlitToScreen> *blits = blit_to_screen_list.getptr(vp->viewport_to_screen);
if (blits == nullptr) {
blits = &blit_to_screen_list.insert(vp->viewport_to_screen, Vector<BlitToScreen>())->value;
}
blits->push_back(blit);
}
}
}
if (vp->update_mode == RS::VIEWPORT_UPDATE_ONCE) {
vp->update_mode = RS::VIEWPORT_UPDATE_DISABLED;
}
RENDER_TIMESTAMP("< Render Viewport " + itos(i));
// 3D render info.
objects_drawn += vp->render_info.info[RS::VIEWPORT_RENDER_INFO_TYPE_VISIBLE][RS::VIEWPORT_RENDER_INFO_OBJECTS_IN_FRAME] + vp->render_info.info[RS::VIEWPORT_RENDER_INFO_TYPE_SHADOW][RS::VIEWPORT_RENDER_INFO_OBJECTS_IN_FRAME];
vertices_drawn += vp->render_info.info[RS::VIEWPORT_RENDER_INFO_TYPE_VISIBLE][RS::VIEWPORT_RENDER_INFO_PRIMITIVES_IN_FRAME] + vp->render_info.info[RS::VIEWPORT_RENDER_INFO_TYPE_SHADOW][RS::VIEWPORT_RENDER_INFO_PRIMITIVES_IN_FRAME];
draw_calls_used += vp->render_info.info[RS::VIEWPORT_RENDER_INFO_TYPE_VISIBLE][RS::VIEWPORT_RENDER_INFO_DRAW_CALLS_IN_FRAME] + vp->render_info.info[RS::VIEWPORT_RENDER_INFO_TYPE_SHADOW][RS::VIEWPORT_RENDER_INFO_DRAW_CALLS_IN_FRAME];
// 2D render info.
objects_drawn += vp->render_info.info[RS::VIEWPORT_RENDER_INFO_TYPE_CANVAS][RS::VIEWPORT_RENDER_INFO_OBJECTS_IN_FRAME];
vertices_drawn += vp->render_info.info[RS::VIEWPORT_RENDER_INFO_TYPE_CANVAS][RS::VIEWPORT_RENDER_INFO_PRIMITIVES_IN_FRAME];
draw_calls_used += vp->render_info.info[RS::VIEWPORT_RENDER_INFO_TYPE_CANVAS][RS::VIEWPORT_RENDER_INFO_DRAW_CALLS_IN_FRAME];
}
RSG::scene->set_debug_draw_mode(RS::VIEWPORT_DEBUG_DRAW_DISABLED);
total_objects_drawn = objects_drawn;
total_vertices_drawn = vertices_drawn;
total_draw_calls_used = draw_calls_used;
RENDER_TIMESTAMP("< Render Viewports");
if (p_swap_buffers && !blit_to_screen_list.is_empty()) {
for (const KeyValue<int, Vector<BlitToScreen>> &E : blit_to_screen_list) {
RSG::rasterizer->blit_render_targets_to_screen(E.key, E.value.ptr(), E.value.size());
}
}
}
RID RendererViewport::viewport_allocate() {
return viewport_owner.allocate_rid();
}
void RendererViewport::viewport_initialize(RID p_rid) {
viewport_owner.initialize_rid(p_rid);
Viewport *viewport = viewport_owner.get_or_null(p_rid);
viewport->self = p_rid;
viewport->render_target = RSG::texture_storage->render_target_create();
viewport->shadow_atlas = RSG::light_storage->shadow_atlas_create();
viewport->viewport_render_direct_to_screen = false;
viewport->fsr_enabled = !RSG::rasterizer->is_low_end() && !viewport->disable_3d;
}
void RendererViewport::viewport_set_use_xr(RID p_viewport, bool p_use_xr) {
Viewport *viewport = viewport_owner.get_or_null(p_viewport);
ERR_FAIL_NULL(viewport);
if (viewport->use_xr == p_use_xr) {
return;
}
viewport->use_xr = p_use_xr;
// Re-configure the 3D render buffers when disabling XR. They'll get
// re-configured when enabling XR in draw_viewports().
if (!p_use_xr) {
viewport->view_count = 1;
_configure_3d_render_buffers(viewport);
}
}
void RendererViewport::viewport_set_scaling_3d_mode(RID p_viewport, RS::ViewportScaling3DMode p_mode) {
Viewport *viewport = viewport_owner.get_or_null(p_viewport);
ERR_FAIL_NULL(viewport);
ERR_FAIL_COND_EDMSG(p_mode == RS::VIEWPORT_SCALING_3D_MODE_FSR && OS::get_singleton()->get_current_rendering_method() != "forward_plus", "FSR1 is only available when using the Forward+ renderer.");
ERR_FAIL_COND_EDMSG(p_mode == RS::VIEWPORT_SCALING_3D_MODE_FSR2 && OS::get_singleton()->get_current_rendering_method() != "forward_plus", "FSR2 is only available when using the Forward+ renderer.");
if (viewport->scaling_3d_mode == p_mode) {
return;
}
bool motion_vectors_before = _viewport_requires_motion_vectors(viewport);
viewport->scaling_3d_mode = p_mode;
bool motion_vectors_after = _viewport_requires_motion_vectors(viewport);
if (motion_vectors_before != motion_vectors_after) {
num_viewports_with_motion_vectors += motion_vectors_after ? 1 : -1;
}
_configure_3d_render_buffers(viewport);
}
void RendererViewport::viewport_set_fsr_sharpness(RID p_viewport, float p_sharpness) {
Viewport *viewport = viewport_owner.get_or_null(p_viewport);
ERR_FAIL_NULL(viewport);
viewport->fsr_sharpness = p_sharpness;
_configure_3d_render_buffers(viewport);
}
void RendererViewport::viewport_set_texture_mipmap_bias(RID p_viewport, float p_mipmap_bias) {