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Fix LOD selection in compatibility backend and clean up LOD code #92287

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May 28, 2024
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Fix LOD selection in compatibility backend and clean up LOD code #92287

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42 changes: 22 additions & 20 deletions drivers/gles3/rasterizer_scene_gles3.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1359,23 +1359,26 @@ void RasterizerSceneGLES3::_fill_render_list(RenderListType p_render_list, const
// LOD

if (p_render_data->screen_mesh_lod_threshold > 0.0 && mesh_storage->mesh_surface_has_lod(surf->surface)) {
// Get the LOD support points on the mesh AABB.
Vector3 lod_support_min = inst->transformed_aabb.get_support(p_render_data->cam_transform.basis.get_column(Vector3::AXIS_Z));
Vector3 lod_support_max = inst->transformed_aabb.get_support(-p_render_data->cam_transform.basis.get_column(Vector3::AXIS_Z));

// Get the distances to those points on the AABB from the camera origin.
float distance_min = (float)p_render_data->cam_transform.origin.distance_to(lod_support_min);
float distance_max = (float)p_render_data->cam_transform.origin.distance_to(lod_support_max);

float distance = 0.0;

if (distance_min * distance_max < 0.0) {
//crossing plane
distance = 0.0;
} else if (distance_min >= 0.0) {
distance = distance_min;
} else if (distance_max <= 0.0) {
distance = -distance_max;
// Check if camera is NOT inside the mesh AABB.
if (!inst->transformed_aabb.has_point(p_render_data->main_cam_transform.origin)) {
// Get the LOD support points on the mesh AABB.
Vector3 lod_support_min = inst->transformed_aabb.get_support(p_render_data->main_cam_transform.basis.get_column(Vector3::AXIS_Z));
Vector3 lod_support_max = inst->transformed_aabb.get_support(-p_render_data->main_cam_transform.basis.get_column(Vector3::AXIS_Z));

// Get the distances to those points on the AABB from the camera origin.
float distance_min = (float)p_render_data->main_cam_transform.origin.distance_to(lod_support_min);
float distance_max = (float)p_render_data->main_cam_transform.origin.distance_to(lod_support_max);

if (distance_min * distance_max < 0.0) {
//crossing plane
distance = 0.0;
} else if (distance_min >= 0.0) {
distance = distance_min;
} else if (distance_max <= 0.0) {
distance = -distance_max;
}
}

if (p_render_data->cam_orthogonal) {
Expand Down Expand Up @@ -1985,7 +1988,6 @@ void RasterizerSceneGLES3::_render_shadows(const RenderDataGLES3 *p_render_data,
LocalVector<int> shadows;
LocalVector<int> directional_shadows;

Plane camera_plane(-p_render_data->cam_transform.basis.get_column(Vector3::AXIS_Z), p_render_data->cam_transform.origin);
float lod_distance_multiplier = p_render_data->cam_projection.get_lod_multiplier();

// Put lights into buckets for omni (cube shadows), directional, and spot.
Expand Down Expand Up @@ -2014,20 +2016,20 @@ void RasterizerSceneGLES3::_render_shadows(const RenderDataGLES3 *p_render_data,

// Render cubemap shadows.
for (const int &index : cube_shadows) {
_render_shadow_pass(p_render_data->render_shadows[index].light, p_render_data->shadow_atlas, p_render_data->render_shadows[index].pass, p_render_data->render_shadows[index].instances, camera_plane, lod_distance_multiplier, p_render_data->screen_mesh_lod_threshold, p_render_data->render_info, p_viewport_size, p_render_data->cam_transform);
_render_shadow_pass(p_render_data->render_shadows[index].light, p_render_data->shadow_atlas, p_render_data->render_shadows[index].pass, p_render_data->render_shadows[index].instances, lod_distance_multiplier, p_render_data->screen_mesh_lod_threshold, p_render_data->render_info, p_viewport_size, p_render_data->cam_transform);
}
// Render directional shadows.
for (uint32_t i = 0; i < directional_shadows.size(); i++) {
_render_shadow_pass(p_render_data->render_shadows[directional_shadows[i]].light, p_render_data->shadow_atlas, p_render_data->render_shadows[directional_shadows[i]].pass, p_render_data->render_shadows[directional_shadows[i]].instances, camera_plane, lod_distance_multiplier, p_render_data->screen_mesh_lod_threshold, p_render_data->render_info, p_viewport_size, p_render_data->cam_transform);
_render_shadow_pass(p_render_data->render_shadows[directional_shadows[i]].light, p_render_data->shadow_atlas, p_render_data->render_shadows[directional_shadows[i]].pass, p_render_data->render_shadows[directional_shadows[i]].instances, lod_distance_multiplier, p_render_data->screen_mesh_lod_threshold, p_render_data->render_info, p_viewport_size, p_render_data->cam_transform);
}
// Render positional shadows (Spotlight and Omnilight with dual-paraboloid).
for (uint32_t i = 0; i < shadows.size(); i++) {
_render_shadow_pass(p_render_data->render_shadows[shadows[i]].light, p_render_data->shadow_atlas, p_render_data->render_shadows[shadows[i]].pass, p_render_data->render_shadows[shadows[i]].instances, camera_plane, lod_distance_multiplier, p_render_data->screen_mesh_lod_threshold, p_render_data->render_info, p_viewport_size, p_render_data->cam_transform);
_render_shadow_pass(p_render_data->render_shadows[shadows[i]].light, p_render_data->shadow_atlas, p_render_data->render_shadows[shadows[i]].pass, p_render_data->render_shadows[shadows[i]].instances, lod_distance_multiplier, p_render_data->screen_mesh_lod_threshold, p_render_data->render_info, p_viewport_size, p_render_data->cam_transform);
}
}
}

void RasterizerSceneGLES3::_render_shadow_pass(RID p_light, RID p_shadow_atlas, int p_pass, const PagedArray<RenderGeometryInstance *> &p_instances, const Plane &p_camera_plane, float p_lod_distance_multiplier, float p_screen_mesh_lod_threshold, RenderingMethod::RenderInfo *p_render_info, const Size2i &p_viewport_size, const Transform3D &p_main_cam_transform) {
void RasterizerSceneGLES3::_render_shadow_pass(RID p_light, RID p_shadow_atlas, int p_pass, const PagedArray<RenderGeometryInstance *> &p_instances, float p_lod_distance_multiplier, float p_screen_mesh_lod_threshold, RenderingMethod::RenderInfo *p_render_info, const Size2i &p_viewport_size, const Transform3D &p_main_cam_transform) {
GLES3::LightStorage *light_storage = GLES3::LightStorage::get_singleton();

ERR_FAIL_COND(!light_storage->owns_light_instance(p_light));
Expand Down
2 changes: 1 addition & 1 deletion drivers/gles3/rasterizer_scene_gles3.h
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Original file line number Diff line number Diff line change
Expand Up @@ -640,7 +640,7 @@ class RasterizerSceneGLES3 : public RendererSceneRender {
void _setup_environment(const RenderDataGLES3 *p_render_data, bool p_no_fog, const Size2i &p_screen_size, bool p_flip_y, const Color &p_default_bg_color, bool p_pancake_shadows, float p_shadow_bias = 0.0);
void _fill_render_list(RenderListType p_render_list, const RenderDataGLES3 *p_render_data, PassMode p_pass_mode, bool p_append = false);
void _render_shadows(const RenderDataGLES3 *p_render_data, const Size2i &p_viewport_size = Size2i(1, 1));
void _render_shadow_pass(RID p_light, RID p_shadow_atlas, int p_pass, const PagedArray<RenderGeometryInstance *> &p_instances, const Plane &p_camera_plane = Plane(), float p_lod_distance_multiplier = 0, float p_screen_mesh_lod_threshold = 0.0, RenderingMethod::RenderInfo *p_render_info = nullptr, const Size2i &p_viewport_size = Size2i(1, 1), const Transform3D &p_main_cam_transform = Transform3D());
void _render_shadow_pass(RID p_light, RID p_shadow_atlas, int p_pass, const PagedArray<RenderGeometryInstance *> &p_instances, float p_lod_distance_multiplier = 0, float p_screen_mesh_lod_threshold = 0.0, RenderingMethod::RenderInfo *p_render_info = nullptr, const Size2i &p_viewport_size = Size2i(1, 1), const Transform3D &p_main_cam_transform = Transform3D());
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void _render_post_processing(const RenderDataGLES3 *p_render_data);

template <PassMode p_pass_mode>
Expand Down
26 changes: 12 additions & 14 deletions servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -972,14 +972,14 @@ void RenderForwardClustered::_fill_render_list(RenderListType p_render_list, con
float distance = 0.0;

// Check if camera is NOT inside the mesh AABB.
if (!inst->transformed_aabb.has_point(p_render_data->scene_data->cam_transform.origin)) {
if (!inst->transformed_aabb.has_point(p_render_data->scene_data->main_cam_transform.origin)) {
// Get the LOD support points on the mesh AABB.
Vector3 lod_support_min = inst->transformed_aabb.get_support(p_render_data->scene_data->cam_transform.basis.get_column(Vector3::AXIS_Z));
Vector3 lod_support_max = inst->transformed_aabb.get_support(-p_render_data->scene_data->cam_transform.basis.get_column(Vector3::AXIS_Z));
Vector3 lod_support_min = inst->transformed_aabb.get_support(p_render_data->scene_data->main_cam_transform.basis.get_column(Vector3::AXIS_Z));
Vector3 lod_support_max = inst->transformed_aabb.get_support(-p_render_data->scene_data->main_cam_transform.basis.get_column(Vector3::AXIS_Z));

// Get the distances to those points on the AABB from the camera origin.
float distance_min = (float)p_render_data->scene_data->cam_transform.origin.distance_to(lod_support_min);
float distance_max = (float)p_render_data->scene_data->cam_transform.origin.distance_to(lod_support_max);
float distance_min = (float)p_render_data->scene_data->main_cam_transform.origin.distance_to(lod_support_min);
float distance_max = (float)p_render_data->scene_data->main_cam_transform.origin.distance_to(lod_support_max);

if (distance_min * distance_max < 0.0) {
//crossing plane
Expand Down Expand Up @@ -1388,7 +1388,6 @@ void RenderForwardClustered::_pre_opaque_render(RenderDataRD *p_render_data, boo
p_render_data->shadows.clear();
p_render_data->directional_shadows.clear();

Plane camera_plane(-p_render_data->scene_data->cam_transform.basis.get_column(Vector3::AXIS_Z), p_render_data->scene_data->cam_transform.origin);
float lod_distance_multiplier = p_render_data->scene_data->cam_projection.get_lod_multiplier();
{
for (int i = 0; i < p_render_data->render_shadow_count; i++) {
Expand All @@ -1407,7 +1406,7 @@ void RenderForwardClustered::_pre_opaque_render(RenderDataRD *p_render_data, boo
RENDER_TIMESTAMP("Render OmniLight Shadows");
// Cube shadows are rendered in their own way.
for (const int &index : p_render_data->cube_shadows) {
_render_shadow_pass(p_render_data->render_shadows[index].light, p_render_data->shadow_atlas, p_render_data->render_shadows[index].pass, p_render_data->render_shadows[index].instances, camera_plane, lod_distance_multiplier, p_render_data->scene_data->screen_mesh_lod_threshold, true, true, true, p_render_data->render_info, viewport_size, p_render_data->scene_data->cam_transform);
_render_shadow_pass(p_render_data->render_shadows[index].light, p_render_data->shadow_atlas, p_render_data->render_shadows[index].pass, p_render_data->render_shadows[index].instances, lod_distance_multiplier, p_render_data->scene_data->screen_mesh_lod_threshold, true, true, true, p_render_data->render_info, viewport_size, p_render_data->scene_data->cam_transform);
}

if (p_render_data->directional_shadows.size()) {
Expand Down Expand Up @@ -1437,11 +1436,11 @@ void RenderForwardClustered::_pre_opaque_render(RenderDataRD *p_render_data, boo

//render directional shadows
for (uint32_t i = 0; i < p_render_data->directional_shadows.size(); i++) {
_render_shadow_pass(p_render_data->render_shadows[p_render_data->directional_shadows[i]].light, p_render_data->shadow_atlas, p_render_data->render_shadows[p_render_data->directional_shadows[i]].pass, p_render_data->render_shadows[p_render_data->directional_shadows[i]].instances, camera_plane, lod_distance_multiplier, p_render_data->scene_data->screen_mesh_lod_threshold, false, i == p_render_data->directional_shadows.size() - 1, false, p_render_data->render_info, viewport_size, p_render_data->scene_data->cam_transform);
_render_shadow_pass(p_render_data->render_shadows[p_render_data->directional_shadows[i]].light, p_render_data->shadow_atlas, p_render_data->render_shadows[p_render_data->directional_shadows[i]].pass, p_render_data->render_shadows[p_render_data->directional_shadows[i]].instances, lod_distance_multiplier, p_render_data->scene_data->screen_mesh_lod_threshold, false, i == p_render_data->directional_shadows.size() - 1, false, p_render_data->render_info, viewport_size, p_render_data->scene_data->cam_transform);
}
//render positional shadows
for (uint32_t i = 0; i < p_render_data->shadows.size(); i++) {
_render_shadow_pass(p_render_data->render_shadows[p_render_data->shadows[i]].light, p_render_data->shadow_atlas, p_render_data->render_shadows[p_render_data->shadows[i]].pass, p_render_data->render_shadows[p_render_data->shadows[i]].instances, camera_plane, lod_distance_multiplier, p_render_data->scene_data->screen_mesh_lod_threshold, i == 0, i == p_render_data->shadows.size() - 1, true, p_render_data->render_info, viewport_size, p_render_data->scene_data->cam_transform);
_render_shadow_pass(p_render_data->render_shadows[p_render_data->shadows[i]].light, p_render_data->shadow_atlas, p_render_data->render_shadows[p_render_data->shadows[i]].pass, p_render_data->render_shadows[p_render_data->shadows[i]].instances, lod_distance_multiplier, p_render_data->scene_data->screen_mesh_lod_threshold, i == 0, i == p_render_data->shadows.size() - 1, true, p_render_data->render_info, viewport_size, p_render_data->scene_data->cam_transform);
}

_render_shadow_process();
Expand Down Expand Up @@ -2371,7 +2370,7 @@ void RenderForwardClustered::_render_buffers_debug_draw(const RenderDataRD *p_re
}
}

void RenderForwardClustered::_render_shadow_pass(RID p_light, RID p_shadow_atlas, int p_pass, const PagedArray<RenderGeometryInstance *> &p_instances, const Plane &p_camera_plane, float p_lod_distance_multiplier, float p_screen_mesh_lod_threshold, bool p_open_pass, bool p_close_pass, bool p_clear_region, RenderingMethod::RenderInfo *p_render_info, const Size2i &p_viewport_size, const Transform3D &p_main_cam_transform) {
void RenderForwardClustered::_render_shadow_pass(RID p_light, RID p_shadow_atlas, int p_pass, const PagedArray<RenderGeometryInstance *> &p_instances, float p_lod_distance_multiplier, float p_screen_mesh_lod_threshold, bool p_open_pass, bool p_close_pass, bool p_clear_region, RenderingMethod::RenderInfo *p_render_info, const Size2i &p_viewport_size, const Transform3D &p_main_cam_transform) {
RendererRD::LightStorage *light_storage = RendererRD::LightStorage::get_singleton();

ERR_FAIL_COND(!light_storage->owns_light_instance(p_light));
Expand Down Expand Up @@ -2526,7 +2525,7 @@ void RenderForwardClustered::_render_shadow_pass(RID p_light, RID p_shadow_atlas

if (render_cubemap) {
//rendering to cubemap
_render_shadow_append(render_fb, p_instances, light_projection, light_transform, zfar, 0, 0, reverse_cull_face, false, false, use_pancake, p_camera_plane, p_lod_distance_multiplier, p_screen_mesh_lod_threshold, Rect2(), false, true, true, true, p_render_info, p_viewport_size, p_main_cam_transform);
_render_shadow_append(render_fb, p_instances, light_projection, light_transform, zfar, 0, 0, reverse_cull_face, false, false, use_pancake, p_lod_distance_multiplier, p_screen_mesh_lod_threshold, Rect2(), false, true, true, true, p_render_info, p_viewport_size, p_main_cam_transform);
if (finalize_cubemap) {
_render_shadow_process();
_render_shadow_end();
Expand All @@ -2544,7 +2543,7 @@ void RenderForwardClustered::_render_shadow_pass(RID p_light, RID p_shadow_atlas

} else {
//render shadow
_render_shadow_append(render_fb, p_instances, light_projection, light_transform, zfar, 0, 0, reverse_cull_face, using_dual_paraboloid, using_dual_paraboloid_flip, use_pancake, p_camera_plane, p_lod_distance_multiplier, p_screen_mesh_lod_threshold, atlas_rect, flip_y, p_clear_region, p_open_pass, p_close_pass, p_render_info, p_viewport_size, p_main_cam_transform);
_render_shadow_append(render_fb, p_instances, light_projection, light_transform, zfar, 0, 0, reverse_cull_face, using_dual_paraboloid, using_dual_paraboloid_flip, use_pancake, p_lod_distance_multiplier, p_screen_mesh_lod_threshold, atlas_rect, flip_y, p_clear_region, p_open_pass, p_close_pass, p_render_info, p_viewport_size, p_main_cam_transform);
}
}

Expand All @@ -2557,7 +2556,7 @@ void RenderForwardClustered::_render_shadow_begin() {
scene_state.instance_data[RENDER_LIST_SECONDARY].clear();
}

void RenderForwardClustered::_render_shadow_append(RID p_framebuffer, const PagedArray<RenderGeometryInstance *> &p_instances, const Projection &p_projection, const Transform3D &p_transform, float p_zfar, float p_bias, float p_normal_bias, bool p_reverse_cull_face, bool p_use_dp, bool p_use_dp_flip, bool p_use_pancake, const Plane &p_camera_plane, float p_lod_distance_multiplier, float p_screen_mesh_lod_threshold, const Rect2i &p_rect, bool p_flip_y, bool p_clear_region, bool p_begin, bool p_end, RenderingMethod::RenderInfo *p_render_info, const Size2i &p_viewport_size, const Transform3D &p_main_cam_transform) {
void RenderForwardClustered::_render_shadow_append(RID p_framebuffer, const PagedArray<RenderGeometryInstance *> &p_instances, const Projection &p_projection, const Transform3D &p_transform, float p_zfar, float p_bias, float p_normal_bias, bool p_reverse_cull_face, bool p_use_dp, bool p_use_dp_flip, bool p_use_pancake, float p_lod_distance_multiplier, float p_screen_mesh_lod_threshold, const Rect2i &p_rect, bool p_flip_y, bool p_clear_region, bool p_begin, bool p_end, RenderingMethod::RenderInfo *p_render_info, const Size2i &p_viewport_size, const Transform3D &p_main_cam_transform) {
uint32_t shadow_pass_index = scene_state.shadow_passes.size();

SceneState::ShadowPass shadow_pass;
Expand Down Expand Up @@ -2615,7 +2614,6 @@ void RenderForwardClustered::_render_shadow_append(RID p_framebuffer, const Page
shadow_pass.pass_mode = pass_mode;

shadow_pass.rp_uniform_set = RID(); //will be filled later when instance buffer is complete
shadow_pass.camera_plane = p_camera_plane;
shadow_pass.screen_mesh_lod_threshold = scene_data.screen_mesh_lod_threshold;
shadow_pass.lod_distance_multiplier = scene_data.lod_distance_multiplier;

Expand Down
5 changes: 2 additions & 3 deletions servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.h
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Original file line number Diff line number Diff line change
Expand Up @@ -347,7 +347,6 @@ class RenderForwardClustered : public RendererSceneRenderRD {
PassMode pass_mode;

RID rp_uniform_set;
Plane camera_plane;
float lod_distance_multiplier;
float screen_mesh_lod_threshold;

Expand Down Expand Up @@ -594,9 +593,9 @@ class RenderForwardClustered : public RendererSceneRenderRD {

/* Render shadows */

void _render_shadow_pass(RID p_light, RID p_shadow_atlas, int p_pass, const PagedArray<RenderGeometryInstance *> &p_instances, const Plane &p_camera_plane = Plane(), float p_lod_distance_multiplier = 0, float p_screen_mesh_lod_threshold = 0.0, bool p_open_pass = true, bool p_close_pass = true, bool p_clear_region = true, RenderingMethod::RenderInfo *p_render_info = nullptr, const Size2i &p_viewport_size = Size2i(1, 1), const Transform3D &p_main_cam_transform = Transform3D());
void _render_shadow_pass(RID p_light, RID p_shadow_atlas, int p_pass, const PagedArray<RenderGeometryInstance *> &p_instances, float p_lod_distance_multiplier = 0, float p_screen_mesh_lod_threshold = 0.0, bool p_open_pass = true, bool p_close_pass = true, bool p_clear_region = true, RenderingMethod::RenderInfo *p_render_info = nullptr, const Size2i &p_viewport_size = Size2i(1, 1), const Transform3D &p_main_cam_transform = Transform3D());
void _render_shadow_begin();
void _render_shadow_append(RID p_framebuffer, const PagedArray<RenderGeometryInstance *> &p_instances, const Projection &p_projection, const Transform3D &p_transform, float p_zfar, float p_bias, float p_normal_bias, bool p_reverse_cull_face, bool p_use_dp, bool p_use_dp_flip, bool p_use_pancake, const Plane &p_camera_plane = Plane(), float p_lod_distance_multiplier = 0.0, float p_screen_mesh_lod_threshold = 0.0, const Rect2i &p_rect = Rect2i(), bool p_flip_y = false, bool p_clear_region = true, bool p_begin = true, bool p_end = true, RenderingMethod::RenderInfo *p_render_info = nullptr, const Size2i &p_viewport_size = Size2i(1, 1), const Transform3D &p_main_cam_transform = Transform3D());
void _render_shadow_append(RID p_framebuffer, const PagedArray<RenderGeometryInstance *> &p_instances, const Projection &p_projection, const Transform3D &p_transform, float p_zfar, float p_bias, float p_normal_bias, bool p_reverse_cull_face, bool p_use_dp, bool p_use_dp_flip, bool p_use_pancake, float p_lod_distance_multiplier = 0.0, float p_screen_mesh_lod_threshold = 0.0, const Rect2i &p_rect = Rect2i(), bool p_flip_y = false, bool p_clear_region = true, bool p_begin = true, bool p_end = true, RenderingMethod::RenderInfo *p_render_info = nullptr, const Size2i &p_viewport_size = Size2i(1, 1), const Transform3D &p_main_cam_transform = Transform3D());
void _render_shadow_process();
void _render_shadow_end();

Expand Down
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