From eaf8e5ce52331d05ee117c21e114ab0990dd3a9b Mon Sep 17 00:00:00 2001 From: lawnjelly Date: Tue, 21 Jan 2020 18:39:16 +0000 Subject: [PATCH] Change CameraMatrix::get_viewport_size to get_viewport_half_extents Fixes #26637. Fixes #19900. The viewport_size returned by get_viewport_size was previously incorrect, being half the correct value. The function is renamed to get_viewport_half_extents, and now returns a Vector2. Code which called this function has also been modified accordingly. This PR also fixes shadow culling when using ortho cameras, because the correct input for CameraMatrix::set_orthogonal should be the full HEIGHT from get_viewport_half_extents, and not half the width. It also fixes state.ubo_data.viewport_size in rasterizer_scene_gles3.cpp to be the width and the height of the viewport in pixels as stated in the documentation, rather than the current value which is half the viewport extents in worldspace, presumed to be a bug. --- core/math/camera_matrix.cpp | 10 ++++------ core/math/camera_matrix.h | 2 +- drivers/gles2/rasterizer_scene_gles2.cpp | 8 ++++---- drivers/gles3/rasterizer_scene_gles3.cpp | 18 +++++++++++------- editor/plugins/spatial_editor_plugin.cpp | 5 ++--- scene/3d/arvr_nodes.cpp | 10 ++++------ scene/3d/camera.cpp | 10 ++++------ servers/visual/visual_server_scene.cpp | 14 +++++++------- 8 files changed, 37 insertions(+), 40 deletions(-) diff --git a/core/math/camera_matrix.cpp b/core/math/camera_matrix.cpp index 165bb9f823e..380bae871a1 100644 --- a/core/math/camera_matrix.cpp +++ b/core/math/camera_matrix.cpp @@ -247,7 +247,7 @@ real_t CameraMatrix::get_z_near() const { return new_plane.d; } -void CameraMatrix::get_viewport_size(real_t &r_width, real_t &r_height) const { +Vector2 CameraMatrix::get_viewport_half_extents() const { const real_t *matrix = (const real_t *)this->matrix; ///////--- Near Plane ---/////// @@ -273,8 +273,7 @@ void CameraMatrix::get_viewport_size(real_t &r_width, real_t &r_height) const { Vector3 res; near_plane.intersect_3(right_plane, top_plane, &res); - r_width = res.x; - r_height = res.y; + return Vector2(res.x, res.y); } bool CameraMatrix::get_endpoints(const Transform &p_transform, Vector3 *p_8points) const { @@ -563,9 +562,8 @@ CameraMatrix::operator String() const { real_t CameraMatrix::get_aspect() const { - real_t w, h; - get_viewport_size(w, h); - return w / h; + Vector2 vp_he = get_viewport_half_extents(); + return vp_he.x / vp_he.y; } int CameraMatrix::get_pixels_per_meter(int p_for_pixel_width) const { diff --git a/core/math/camera_matrix.h b/core/math/camera_matrix.h index 59e34c08554..2eed6d25d60 100644 --- a/core/math/camera_matrix.h +++ b/core/math/camera_matrix.h @@ -73,7 +73,7 @@ struct CameraMatrix { Vector get_projection_planes(const Transform &p_transform) const; bool get_endpoints(const Transform &p_transform, Vector3 *p_8points) const; - void get_viewport_size(real_t &r_width, real_t &r_height) const; + Vector2 get_viewport_half_extents() const; void invert(); CameraMatrix inverse() const; diff --git a/drivers/gles2/rasterizer_scene_gles2.cpp b/drivers/gles2/rasterizer_scene_gles2.cpp index 6b1574bbbdb..4ffd24862d9 100644 --- a/drivers/gles2/rasterizer_scene_gles2.cpp +++ b/drivers/gles2/rasterizer_scene_gles2.cpp @@ -2685,14 +2685,14 @@ void RasterizerSceneGLES2::_draw_sky(RasterizerStorageGLES2::Sky *p_sky, const C }; if (!asymmetrical) { - float vw, vh, zn; - camera.get_viewport_size(vw, vh); + Vector2 vp_he = camera.get_viewport_half_extents(); + float zn; zn = p_projection.get_z_near(); for (int i = 0; i < 4; i++) { Vector3 uv = vertices[i * 2 + 1]; - uv.x = (uv.x * 2.0 - 1.0) * vw; - uv.y = -(uv.y * 2.0 - 1.0) * vh; + uv.x = (uv.x * 2.0 - 1.0) * vp_he.x; + uv.y = -(uv.y * 2.0 - 1.0) * vp_he.y; uv.z = -zn; vertices[i * 2 + 1] = p_transform.basis.xform(uv).normalized(); vertices[i * 2 + 1].z = -vertices[i * 2 + 1].z; diff --git a/drivers/gles3/rasterizer_scene_gles3.cpp b/drivers/gles3/rasterizer_scene_gles3.cpp index 0ed2637a118..2a59772a601 100644 --- a/drivers/gles3/rasterizer_scene_gles3.cpp +++ b/drivers/gles3/rasterizer_scene_gles3.cpp @@ -2538,14 +2538,14 @@ void RasterizerSceneGLES3::_draw_sky(RasterizerStorageGLES3::Sky *p_sky, const C }; if (!asymmetrical) { - float vw, vh, zn; - camera.get_viewport_size(vw, vh); + Vector2 vp_he = camera.get_viewport_half_extents(); + float zn; zn = p_projection.get_z_near(); for (int i = 0; i < 4; i++) { Vector3 uv = vertices[i * 2 + 1]; - uv.x = (uv.x * 2.0 - 1.0) * vw; - uv.y = -(uv.y * 2.0 - 1.0) * vh; + uv.x = (uv.x * 2.0 - 1.0) * vp_he.x; + uv.y = -(uv.y * 2.0 - 1.0) * vp_he.y; uv.z = -zn; vertices[i * 2 + 1] = p_transform.basis.xform(uv).normalized(); vertices[i * 2 + 1].z = -vertices[i * 2 + 1].z; @@ -4181,11 +4181,15 @@ void RasterizerSceneGLES3::render_scene(const Transform &p_cam_transform, const state.ubo_data.shadow_dual_paraboloid_render_zfar = 0; state.ubo_data.opaque_prepass_threshold = 0.99; - p_cam_projection.get_viewport_size(state.ubo_data.viewport_size[0], state.ubo_data.viewport_size[1]); + int viewport_width_pixels = storage->frame.current_rt->width; + int viewport_height_pixels = storage->frame.current_rt->height; + + state.ubo_data.viewport_size[0] = viewport_width_pixels; + state.ubo_data.viewport_size[1] = viewport_height_pixels; if (storage->frame.current_rt) { - state.ubo_data.screen_pixel_size[0] = 1.0 / storage->frame.current_rt->width; - state.ubo_data.screen_pixel_size[1] = 1.0 / storage->frame.current_rt->height; + state.ubo_data.screen_pixel_size[0] = 1.0 / viewport_width_pixels; + state.ubo_data.screen_pixel_size[1] = 1.0 / viewport_height_pixels; } _setup_environment(env, p_cam_projection, p_cam_transform, p_reflection_probe.is_valid()); diff --git a/editor/plugins/spatial_editor_plugin.cpp b/editor/plugins/spatial_editor_plugin.cpp index bf87bfc14d6..31e6b65640a 100644 --- a/editor/plugins/spatial_editor_plugin.cpp +++ b/editor/plugins/spatial_editor_plugin.cpp @@ -428,8 +428,7 @@ Vector3 SpatialEditorViewport::_get_screen_to_space(const Vector3 &p_vector3) { } else { cm.set_perspective(get_fov(), get_size().aspect(), get_znear() + p_vector3.z, get_zfar()); } - float screen_w, screen_h; - cm.get_viewport_size(screen_w, screen_h); + Vector2 screen_he = cm.get_viewport_half_extents(); Transform camera_transform; camera_transform.translate(cursor.pos); @@ -437,7 +436,7 @@ Vector3 SpatialEditorViewport::_get_screen_to_space(const Vector3 &p_vector3) { camera_transform.basis.rotate(Vector3(0, 1, 0), -cursor.y_rot); camera_transform.translate(0, 0, cursor.distance); - return camera_transform.xform(Vector3(((p_vector3.x / get_size().width) * 2.0 - 1.0) * screen_w, ((1.0 - (p_vector3.y / get_size().height)) * 2.0 - 1.0) * screen_h, -(get_znear() + p_vector3.z))); + return camera_transform.xform(Vector3(((p_vector3.x / get_size().width) * 2.0 - 1.0) * screen_he.x, ((1.0 - (p_vector3.y / get_size().height)) * 2.0 - 1.0) * screen_he.y, -(get_znear() + p_vector3.z))); } void SpatialEditorViewport::_select_region() { diff --git a/scene/3d/arvr_nodes.cpp b/scene/3d/arvr_nodes.cpp index 82293268b92..0f74bf673cb 100644 --- a/scene/3d/arvr_nodes.cpp +++ b/scene/3d/arvr_nodes.cpp @@ -85,9 +85,8 @@ Vector3 ARVRCamera::project_local_ray_normal(const Point2 &p_pos) const { Vector3 ray; CameraMatrix cm = arvr_interface->get_projection_for_eye(ARVRInterface::EYE_MONO, viewport_size.aspect(), get_znear(), get_zfar()); - float screen_w, screen_h; - cm.get_viewport_size(screen_w, screen_h); - ray = Vector3(((cpos.x / viewport_size.width) * 2.0 - 1.0) * screen_w, ((1.0 - (cpos.y / viewport_size.height)) * 2.0 - 1.0) * screen_h, -get_znear()).normalized(); + Vector2 screen_he = cm.get_viewport_half_extents(); + ray = Vector3(((cpos.x / viewport_size.width) * 2.0 - 1.0) * screen_he.x, ((1.0 - (cpos.y / viewport_size.height)) * 2.0 - 1.0) * screen_he.y, -get_znear()).normalized(); return ray; }; @@ -138,13 +137,12 @@ Vector3 ARVRCamera::project_position(const Point2 &p_point, float p_z_depth) con CameraMatrix cm = arvr_interface->get_projection_for_eye(ARVRInterface::EYE_MONO, viewport_size.aspect(), get_znear(), get_zfar()); - Size2 vp_size; - cm.get_viewport_size(vp_size.x, vp_size.y); + Vector2 vp_he = cm.get_viewport_half_extents(); Vector2 point; point.x = (p_point.x / viewport_size.x) * 2.0 - 1.0; point.y = (1.0 - (p_point.y / viewport_size.y)) * 2.0 - 1.0; - point *= vp_size; + point *= vp_he; Vector3 p(point.x, point.y, -p_z_depth); diff --git a/scene/3d/camera.cpp b/scene/3d/camera.cpp index 3a30755f7fa..640189a26eb 100644 --- a/scene/3d/camera.cpp +++ b/scene/3d/camera.cpp @@ -291,9 +291,8 @@ Vector3 Camera::project_local_ray_normal(const Point2 &p_pos) const { } else { CameraMatrix cm; cm.set_perspective(fov, viewport_size.aspect(), near, far, keep_aspect == KEEP_WIDTH); - float screen_w, screen_h; - cm.get_viewport_size(screen_w, screen_h); - ray = Vector3(((cpos.x / viewport_size.width) * 2.0 - 1.0) * screen_w, ((1.0 - (cpos.y / viewport_size.height)) * 2.0 - 1.0) * screen_h, -near).normalized(); + Vector2 screen_he = cm.get_viewport_half_extents(); + ray = Vector3(((cpos.x / viewport_size.width) * 2.0 - 1.0) * screen_he.x, ((1.0 - (cpos.y / viewport_size.height)) * 2.0 - 1.0) * screen_he.y, -near).normalized(); } return ray; @@ -402,13 +401,12 @@ Vector3 Camera::project_position(const Point2 &p_point, float p_z_depth) const { else cm.set_perspective(fov, viewport_size.aspect(), p_z_depth, far, keep_aspect == KEEP_WIDTH); - Size2 vp_size; - cm.get_viewport_size(vp_size.x, vp_size.y); + Vector2 vp_he = cm.get_viewport_half_extents(); Vector2 point; point.x = (p_point.x / viewport_size.x) * 2.0 - 1.0; point.y = (1.0 - (p_point.y / viewport_size.y)) * 2.0 - 1.0; - point *= vp_size; + point *= vp_he; Vector3 p(point.x, point.y, -p_z_depth); diff --git a/servers/visual/visual_server_scene.cpp b/servers/visual/visual_server_scene.cpp index bf9db616e4c..ede906bf06e 100644 --- a/servers/visual/visual_server_scene.cpp +++ b/servers/visual/visual_server_scene.cpp @@ -1398,9 +1398,9 @@ bool VisualServerScene::_light_instance_update_shadow(Instance *p_instance, cons if (p_cam_orthogonal) { - float w, h; - p_cam_projection.get_viewport_size(w, h); - camera_matrix.set_orthogonal(w, aspect, distances[(i == 0 || !overlap) ? i : i - 1], distances[i + 1], false); + Vector2 vp_he = p_cam_projection.get_viewport_half_extents(); + + camera_matrix.set_orthogonal(vp_he.y * 2.0, aspect, distances[(i == 0 || !overlap) ? i : i - 1], distances[i + 1], false); } else { float fov = p_cam_projection.get_fov(); @@ -2088,8 +2088,8 @@ void VisualServerScene::_prepare_scene(const Transform p_cam_transform, const Ca float zn = p_cam_projection.get_z_near(); Plane p(cam_xf.origin + cam_xf.basis.get_axis(2) * -zn, -cam_xf.basis.get_axis(2)); //camera near plane - float vp_w, vp_h; //near plane size in screen coordinates - p_cam_projection.get_viewport_size(vp_w, vp_h); + // near plane half width and height + Vector2 vp_half_extents = p_cam_projection.get_viewport_half_extents(); switch (VSG::storage->light_get_type(ins->base)) { @@ -2115,7 +2115,7 @@ void VisualServerScene::_prepare_scene(const Transform p_cam_transform, const Ca } float screen_diameter = points[0].distance_to(points[1]) * 2; - coverage = screen_diameter / (vp_w + vp_h); + coverage = screen_diameter / (vp_half_extents.x + vp_half_extents.y); } break; case VS::LIGHT_SPOT: { @@ -2144,7 +2144,7 @@ void VisualServerScene::_prepare_scene(const Transform p_cam_transform, const Ca } float screen_diameter = points[0].distance_to(points[1]) * 2; - coverage = screen_diameter / (vp_w + vp_h); + coverage = screen_diameter / (vp_half_extents.x + vp_half_extents.y); } break; default: {