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-rw-r--r--servers/visual/visual_server_scene.cpp130
1 files changed, 104 insertions, 26 deletions
diff --git a/servers/visual/visual_server_scene.cpp b/servers/visual/visual_server_scene.cpp
index 04dcde1365..697c890c9a 100644
--- a/servers/visual/visual_server_scene.cpp
+++ b/servers/visual/visual_server_scene.cpp
@@ -1257,6 +1257,9 @@ void VisualServerScene::_light_instance_update_shadow(Instance *p_instance, cons
InstanceLightData *light = static_cast<InstanceLightData *>(p_instance->base_data);
+ Transform light_transform = p_instance->transform;
+ light_transform.orthonormalize(); //scale does not count on lights
+
switch (VSG::storage->light_get_type(p_instance->base)) {
case VS::LIGHT_DIRECTIONAL: {
@@ -1359,7 +1362,7 @@ void VisualServerScene::_light_instance_update_shadow(Instance *p_instance, cons
// obtain the light frustm ranges (given endpoints)
- Transform transform = p_instance->transform.orthonormalized(); //discard scale and stabilize light
+ Transform transform = light_transform; //discard scale and stabilize light
Vector3 x_vec = transform.basis.get_axis(Vector3::AXIS_X).normalized();
Vector3 y_vec = transform.basis.get_axis(Vector3::AXIS_Y).normalized();
@@ -1469,7 +1472,7 @@ void VisualServerScene::_light_instance_update_shadow(Instance *p_instance, cons
// a pre pass will need to be needed to determine the actual z-near to be used
- Plane near_plane(p_instance->transform.origin, -p_instance->transform.basis.get_axis(2));
+ Plane near_plane(light_transform.origin, -light_transform.basis.get_axis(2));
for (int j = 0; j < cull_count; j++) {
@@ -1524,14 +1527,14 @@ void VisualServerScene::_light_instance_update_shadow(Instance *p_instance, cons
float z = i == 0 ? -1 : 1;
Vector<Plane> planes;
planes.resize(5);
- planes[0] = p_instance->transform.xform(Plane(Vector3(0, 0, z), radius));
- planes[1] = p_instance->transform.xform(Plane(Vector3(1, 0, z).normalized(), radius));
- planes[2] = p_instance->transform.xform(Plane(Vector3(-1, 0, z).normalized(), radius));
- planes[3] = p_instance->transform.xform(Plane(Vector3(0, 1, z).normalized(), radius));
- planes[4] = p_instance->transform.xform(Plane(Vector3(0, -1, z).normalized(), radius));
+ planes[0] = light_transform.xform(Plane(Vector3(0, 0, z), radius));
+ planes[1] = light_transform.xform(Plane(Vector3(1, 0, z).normalized(), radius));
+ planes[2] = light_transform.xform(Plane(Vector3(-1, 0, z).normalized(), radius));
+ planes[3] = light_transform.xform(Plane(Vector3(0, 1, z).normalized(), radius));
+ planes[4] = light_transform.xform(Plane(Vector3(0, -1, z).normalized(), radius));
int cull_count = p_scenario->octree.cull_convex(planes, instance_shadow_cull_result, MAX_INSTANCE_CULL, VS::INSTANCE_GEOMETRY_MASK);
- Plane near_plane(p_instance->transform.origin, p_instance->transform.basis.get_axis(2) * z);
+ Plane near_plane(light_transform.origin, light_transform.basis.get_axis(2) * z);
for (int j = 0; j < cull_count; j++) {
@@ -1546,7 +1549,7 @@ void VisualServerScene::_light_instance_update_shadow(Instance *p_instance, cons
}
}
- VSG::scene_render->light_instance_set_shadow_transform(light->instance, CameraMatrix(), p_instance->transform, radius, 0, i);
+ VSG::scene_render->light_instance_set_shadow_transform(light->instance, CameraMatrix(), light_transform, radius, 0, i);
VSG::scene_render->render_shadow(light->instance, p_shadow_atlas, i, (RasterizerScene::InstanceBase **)instance_shadow_cull_result, cull_count);
}
} break;
@@ -1577,7 +1580,7 @@ void VisualServerScene::_light_instance_update_shadow(Instance *p_instance, cons
Vector3(0, -1, 0)
};
- Transform xform = p_instance->transform * Transform().looking_at(view_normals[i], view_up[i]);
+ Transform xform = light_transform * Transform().looking_at(view_normals[i], view_up[i]);
Vector<Plane> planes = cm.get_projection_planes(xform);
@@ -1602,7 +1605,7 @@ void VisualServerScene::_light_instance_update_shadow(Instance *p_instance, cons
}
//restore the regular DP matrix
- VSG::scene_render->light_instance_set_shadow_transform(light->instance, CameraMatrix(), p_instance->transform, radius, 0, 0);
+ VSG::scene_render->light_instance_set_shadow_transform(light->instance, CameraMatrix(), light_transform, radius, 0, 0);
} break;
}
@@ -1616,10 +1619,10 @@ void VisualServerScene::_light_instance_update_shadow(Instance *p_instance, cons
CameraMatrix cm;
cm.set_perspective(angle * 2.0, 1.0, 0.01, radius);
- Vector<Plane> planes = cm.get_projection_planes(p_instance->transform);
+ Vector<Plane> planes = cm.get_projection_planes(light_transform);
int cull_count = p_scenario->octree.cull_convex(planes, instance_shadow_cull_result, MAX_INSTANCE_CULL, VS::INSTANCE_GEOMETRY_MASK);
- Plane near_plane(p_instance->transform.origin, -p_instance->transform.basis.get_axis(2));
+ Plane near_plane(light_transform.origin, -light_transform.basis.get_axis(2));
for (int j = 0; j < cull_count; j++) {
Instance *instance = instance_shadow_cull_result[j];
@@ -1633,7 +1636,7 @@ void VisualServerScene::_light_instance_update_shadow(Instance *p_instance, cons
}
}
- VSG::scene_render->light_instance_set_shadow_transform(light->instance, cm, p_instance->transform, radius, 0, 0);
+ VSG::scene_render->light_instance_set_shadow_transform(light->instance, cm, light_transform, radius, 0, 0);
VSG::scene_render->render_shadow(light->instance, p_shadow_atlas, 0, (RasterizerScene::InstanceBase **)instance_shadow_cull_result, cull_count);
} break;
@@ -1674,7 +1677,8 @@ void VisualServerScene::render_camera(RID p_camera, RID p_scenario, Size2 p_view
} break;
}
- _render_scene(camera->transform, camera_matrix, ortho, camera->env, camera->visible_layers, p_scenario, p_shadow_atlas, RID(), -1);
+ _prepare_scene(camera->transform, camera_matrix, ortho, camera->env, camera->visible_layers, p_scenario, p_shadow_atlas, RID());
+ _render_scene(camera->transform, camera_matrix, ortho, camera->env, p_scenario, p_shadow_atlas, RID(), -1);
}
void VisualServerScene::render_camera(Ref<ARVRInterface> &p_interface, ARVRInterface::Eyes p_eye, RID p_camera, RID p_scenario, Size2 p_viewport_size, RID p_shadow_atlas) {
@@ -1684,7 +1688,6 @@ void VisualServerScene::render_camera(Ref<ARVRInterface> &p_interface, ARVRInter
ERR_FAIL_COND(!camera);
/* SETUP CAMERA, we are ignoring type and FOV here */
- bool ortho = false;
float aspect = p_viewport_size.width / (float)p_viewport_size.height;
CameraMatrix camera_matrix = p_interface->get_projection_for_eye(p_eye, aspect, camera->znear, camera->zfar);
@@ -1693,10 +1696,79 @@ void VisualServerScene::render_camera(Ref<ARVRInterface> &p_interface, ARVRInter
Transform world_origin = ARVRServer::get_singleton()->get_world_origin();
Transform cam_transform = p_interface->get_transform_for_eye(p_eye, world_origin);
- _render_scene(cam_transform, camera_matrix, ortho, camera->env, camera->visible_layers, p_scenario, p_shadow_atlas, RID(), -1);
+ // For stereo render we only prepare for our left eye and then reuse the outcome for our right eye
+ if (p_eye == ARVRInterface::EYE_LEFT) {
+ ///@TODO possibly move responsibility for this into our ARVRServer or ARVRInterface?
+
+ // Center our transform, we assume basis is equal.
+ Transform mono_transform = cam_transform;
+ Transform right_transform = p_interface->get_transform_for_eye(ARVRInterface::EYE_RIGHT, world_origin);
+ mono_transform.origin += right_transform.origin;
+ mono_transform.origin *= 0.5;
+
+ // We need to combine our projection frustums for culling.
+ // Ideally we should use our clipping planes for this and combine them,
+ // however our shadow map logic uses our projection matrix.
+ // Note: as our left and right frustums should be mirrored, we don't need our right projection matrix.
+
+ // - get some base values we need
+ float eye_dist = (mono_transform.origin - cam_transform.origin).length();
+ float z_near = camera_matrix.get_z_near(); // get our near plane
+ float z_far = camera_matrix.get_z_far(); // get our far plane
+ float width = (2.0 * z_near) / camera_matrix.matrix[0][0];
+ float x_shift = width * camera_matrix.matrix[2][0];
+ float height = (2.0 * z_near) / camera_matrix.matrix[1][1];
+ float y_shift = height * camera_matrix.matrix[2][1];
+
+ // printf("Eye_dist = %f, Near = %f, Far = %f, Width = %f, Shift = %f\n", eye_dist, z_near, z_far, width, x_shift);
+
+ // - calculate our near plane size (horizontal only, right_near is mirrored)
+ float left_near = -eye_dist - ((width - x_shift) * 0.5);
+
+ // - calculate our far plane size (horizontal only, right_far is mirrored)
+ float left_far = -eye_dist - (z_far * (width - x_shift) * 0.5 / z_near);
+ float left_far_right_eye = eye_dist - (z_far * (width + x_shift) * 0.5 / z_near);
+ if (left_far > left_far_right_eye) {
+ // on displays smaller then double our iod, the right eye far frustrum can overtake the left eyes.
+ left_far = left_far_right_eye;
+ }
+
+ // - figure out required z-shift
+ float slope = (left_far - left_near) / (z_far - z_near);
+ float z_shift = (left_near / slope) - z_near;
+
+ // - figure out new vertical near plane size (this will be slightly oversized thanks to our z-shift)
+ float top_near = (height - y_shift) * 0.5;
+ top_near += (top_near / z_near) * z_shift;
+ float bottom_near = -(height + y_shift) * 0.5;
+ bottom_near += (bottom_near / z_near) * z_shift;
+
+ // printf("Left_near = %f, Left_far = %f, Top_near = %f, Bottom_near = %f, Z_shift = %f\n", left_near, left_far, top_near, bottom_near, z_shift);
+
+ // - generate our frustum
+ CameraMatrix combined_matrix;
+ combined_matrix.set_frustum(left_near, -left_near, bottom_near, top_near, z_near + z_shift, z_far + z_shift);
+
+ // and finally move our camera back
+ Transform apply_z_shift;
+ apply_z_shift.origin = Vector3(0.0, 0.0, z_shift); // z negative is forward so this moves it backwards
+ mono_transform *= apply_z_shift;
+
+ // now prepare our scene with our adjusted transform projection matrix
+ _prepare_scene(mono_transform, combined_matrix, false, camera->env, camera->visible_layers, p_scenario, p_shadow_atlas, RID());
+ } else if (p_eye == ARVRInterface::EYE_MONO) {
+ // For mono render, prepare as per usual
+ _prepare_scene(cam_transform, camera_matrix, false, camera->env, camera->visible_layers, p_scenario, p_shadow_atlas, RID());
+ }
+
+ // And render our scene...
+ _render_scene(cam_transform, camera_matrix, false, camera->env, p_scenario, p_shadow_atlas, RID(), -1);
};
-void VisualServerScene::_render_scene(const Transform p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_orthogonal, RID p_force_environment, uint32_t p_visible_layers, RID p_scenario, RID p_shadow_atlas, RID p_reflection_probe, int p_reflection_probe_pass) {
+void VisualServerScene::_prepare_scene(const Transform p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_orthogonal, RID p_force_environment, uint32_t p_visible_layers, RID p_scenario, RID p_shadow_atlas, RID p_reflection_probe) {
+ // 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
Scenario *scenario = scenario_owner.getornull(p_scenario);
@@ -1713,7 +1785,7 @@ void VisualServerScene::_render_scene(const Transform p_cam_transform, const Cam
float z_far = p_cam_projection.get_z_far();
/* STEP 2 - CULL */
- int cull_count = scenario->octree.cull_convex(planes, instance_cull_result, MAX_INSTANCE_CULL);
+ instance_cull_count = scenario->octree.cull_convex(planes, instance_cull_result, MAX_INSTANCE_CULL);
light_cull_count = 0;
reflection_probe_cull_count = 0;
@@ -1731,7 +1803,7 @@ void VisualServerScene::_render_scene(const Transform p_cam_transform, const Cam
/* STEP 4 - REMOVE FURTHER CULLED OBJECTS, ADD LIGHTS */
- for (int i = 0; i < cull_count; i++) {
+ for (int i = 0; i < instance_cull_count; i++) {
Instance *ins = instance_cull_result[i];
@@ -1857,8 +1929,8 @@ void VisualServerScene::_render_scene(const Transform p_cam_transform, const Cam
if (!keep) {
// remove, no reason to keep
- cull_count--;
- SWAP(instance_cull_result[i], instance_cull_result[cull_count]);
+ instance_cull_count--;
+ SWAP(instance_cull_result[i], instance_cull_result[instance_cull_count]);
i--;
ins->last_render_pass = 0; // make invalid
} else {
@@ -1870,7 +1942,7 @@ void VisualServerScene::_render_scene(const Transform p_cam_transform, const Cam
/* STEP 5 - PROCESS LIGHTS */
RID *directional_light_ptr = &light_instance_cull_result[light_cull_count];
- int directional_light_count = 0;
+ directional_light_count = 0;
// directional lights
{
@@ -2007,6 +2079,11 @@ void VisualServerScene::_render_scene(const Transform p_cam_transform, const Cam
}
}
}
+}
+
+void VisualServerScene::_render_scene(const Transform p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_orthogonal, RID p_force_environment, RID p_scenario, RID p_shadow_atlas, RID p_reflection_probe, int p_reflection_probe_pass) {
+
+ Scenario *scenario = scenario_owner.getornull(p_scenario);
/* ENVIRONMENT */
@@ -2018,9 +2095,9 @@ void VisualServerScene::_render_scene(const Transform p_cam_transform, const Cam
else
environment = scenario->fallback_environment;
- /* STEP 6 - PROCESS GEOMETRY AND DRAW SCENE*/
+ /* PROCESS GEOMETRY AND DRAW SCENE */
- VSG::scene_render->render_scene(p_cam_transform, p_cam_projection, p_cam_orthogonal, (RasterizerScene::InstanceBase **)instance_cull_result, cull_count, light_instance_cull_result, light_cull_count + directional_light_count, reflection_probe_instance_cull_result, reflection_probe_cull_count, environment, p_shadow_atlas, scenario->reflection_atlas, p_reflection_probe, p_reflection_probe_pass);
+ VSG::scene_render->render_scene(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, environment, p_shadow_atlas, scenario->reflection_atlas, p_reflection_probe, p_reflection_probe_pass);
}
void VisualServerScene::render_empty_scene(RID p_scenario, RID p_shadow_atlas) {
@@ -2093,7 +2170,8 @@ bool VisualServerScene::_render_reflection_probe_step(Instance *p_instance, int
shadow_atlas = scenario->reflection_probe_shadow_atlas;
}
- _render_scene(xform, cm, false, RID(), VSG::storage->reflection_probe_get_cull_mask(p_instance->base), p_instance->scenario->self, shadow_atlas, reflection_probe->instance, p_step);
+ _prepare_scene(xform, cm, false, RID(), VSG::storage->reflection_probe_get_cull_mask(p_instance->base), p_instance->scenario->self, shadow_atlas, reflection_probe->instance);
+ _render_scene(xform, cm, false, RID(), p_instance->scenario->self, shadow_atlas, reflection_probe->instance, p_step);
} else {
//do roughness postprocess step until it believes it's done
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 05:31:28 +0000