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-rw-r--r--modules/gltf/gltf_document.cpp2
-rw-r--r--modules/lightmapper_rd/lm_compute.glsl73
-rw-r--r--modules/raycast/raycast_occlusion_cull.cpp123
-rw-r--r--modules/raycast/raycast_occlusion_cull.h17
4 files changed, 123 insertions, 92 deletions
diff --git a/modules/gltf/gltf_document.cpp b/modules/gltf/gltf_document.cpp
index d4f4221663..df2856ec7c 100644
--- a/modules/gltf/gltf_document.cpp
+++ b/modules/gltf/gltf_document.cpp
@@ -6744,6 +6744,8 @@ Error GLTFDocument::_serialize_file(Ref<GLTFState> state, const String p_path) {
Error GLTFDocument::save_scene(Node *p_node, const String &p_path,
const String &p_src_path, uint32_t p_flags,
float p_bake_fps, Ref<GLTFState> r_state) {
+ ERR_FAIL_NULL_V(p_node, ERR_INVALID_PARAMETER);
+
Ref<GLTFDocument> gltf_document;
gltf_document.instantiate();
if (r_state == Ref<GLTFState>()) {
diff --git a/modules/lightmapper_rd/lm_compute.glsl b/modules/lightmapper_rd/lm_compute.glsl
index a71652d5c4..25b334c5eb 100644
--- a/modules/lightmapper_rd/lm_compute.glsl
+++ b/modules/lightmapper_rd/lm_compute.glsl
@@ -115,7 +115,12 @@ bool ray_hits_triangle(vec3 from, vec3 dir, float max_dist, vec3 p0, vec3 p1, ve
return (r_distance > params.bias) && (r_distance < max_dist) && all(greaterThanEqual(r_barycentric, vec3(0.0)));
}
-bool trace_ray(vec3 p_from, vec3 p_to
+const uint RAY_MISS = 0;
+const uint RAY_FRONT = 1;
+const uint RAY_BACK = 2;
+const uint RAY_ANY = 3;
+
+uint trace_ray(vec3 p_from, vec3 p_to
#if defined(MODE_BOUNCE_LIGHT) || defined(MODE_LIGHT_PROBES)
,
out uint r_triangle, out vec3 r_barycentric
@@ -125,6 +130,7 @@ bool trace_ray(vec3 p_from, vec3 p_to
out float r_distance, out vec3 r_normal
#endif
) {
+
/* world coords */
vec3 rel = p_to - p_from;
@@ -150,10 +156,7 @@ bool trace_ray(vec3 p_from, vec3 p_to
while (all(greaterThanEqual(icell, ivec3(0))) && all(lessThan(icell, ivec3(params.grid_size))) && iters < 1000) {
uvec2 cell_data = texelFetch(usampler3D(grid, linear_sampler), icell, 0).xy;
if (cell_data.x > 0) { //triangles here
- bool hit = false;
-#if defined(MODE_UNOCCLUDE)
- bool hit_backface = false;
-#endif
+ uint hit = RAY_MISS;
float best_distance = 1e20;
for (uint i = 0; i < cell_data.x; i++) {
@@ -173,57 +176,46 @@ bool trace_ray(vec3 p_from, vec3 p_to
vec3 vtx0 = vertices.data[triangle.indices.x].position;
vec3 vtx1 = vertices.data[triangle.indices.y].position;
vec3 vtx2 = vertices.data[triangle.indices.z].position;
-#if defined(MODE_UNOCCLUDE)
+#if defined(MODE_UNOCCLUDE) || defined(MODE_BOUNCE_LIGHT) || defined(MODE_LIGHT_PROBES)
vec3 normal = -normalize(cross((vtx0 - vtx1), (vtx0 - vtx2)));
bool backface = dot(normal, dir) >= 0.0;
#endif
+
float distance;
vec3 barycentric;
if (ray_hits_triangle(p_from, dir, rel_len, vtx0, vtx1, vtx2, distance, barycentric)) {
#ifdef MODE_DIRECT_LIGHT
- return true; //any hit good
+ return RAY_ANY; //any hit good
#endif
-#if defined(MODE_UNOCCLUDE)
+#if defined(MODE_UNOCCLUDE) || defined(MODE_BOUNCE_LIGHT) || defined(MODE_LIGHT_PROBES)
if (!backface) {
// the case of meshes having both a front and back face in the same plane is more common than
// expected, so if this is a front-face, bias it closer to the ray origin, so it always wins over the back-face
distance = max(params.bias, distance - params.bias);
}
- hit = true;
-
if (distance < best_distance) {
- hit_backface = backface;
+ hit = backface ? RAY_BACK : RAY_FRONT;
best_distance = distance;
+#if defined(MODE_UNOCCLUDE)
r_distance = distance;
r_normal = normal;
- }
-
#endif
-
#if defined(MODE_BOUNCE_LIGHT) || defined(MODE_LIGHT_PROBES)
-
- hit = true;
- if (distance < best_distance) {
- best_distance = distance;
r_triangle = tidx;
r_barycentric = barycentric;
+#endif
}
#endif
}
}
-#if defined(MODE_UNOCCLUDE)
+#if defined(MODE_UNOCCLUDE) || defined(MODE_BOUNCE_LIGHT) || defined(MODE_LIGHT_PROBES)
- if (hit) {
- return hit_backface;
- }
-#endif
-#if defined(MODE_BOUNCE_LIGHT) || defined(MODE_LIGHT_PROBES)
- if (hit) {
- return true;
+ if (hit != RAY_MISS) {
+ return hit;
}
#endif
}
@@ -239,7 +231,7 @@ bool trace_ray(vec3 p_from, vec3 p_to
iters++;
}
- return false;
+ return RAY_MISS;
}
const float PI = 3.14159265f;
@@ -339,7 +331,7 @@ void main() {
continue; //no need to do anything
}
- if (!trace_ray(position + light_dir * params.bias, light_pos)) {
+ if (trace_ray(position + light_dir * params.bias, light_pos) == RAY_MISS) {
vec3 light = lights.data[i].color * lights.data[i].energy * attenuation;
if (lights.data[i].static_bake) {
static_light += light;
@@ -410,6 +402,7 @@ void main() {
vec4(0.0, 0.0, 0.0, 1.0));
#endif
vec3 light_average = vec3(0.0);
+ float active_rays = 0.0;
for (uint i = params.ray_from; i < params.ray_to; i++) {
vec3 ray_dir = normal_mat * vogel_hemisphere(i, params.ray_count, quick_hash(vec2(atlas_pos)));
@@ -417,7 +410,8 @@ void main() {
vec3 barycentric;
vec3 light = vec3(0.0);
- if (trace_ray(position + ray_dir * params.bias, position + ray_dir * length(params.world_size), tidx, barycentric)) {
+ uint trace_result = trace_ray(position + ray_dir * params.bias, position + ray_dir * length(params.world_size), tidx, barycentric);
+ if (trace_result == RAY_FRONT) {
//hit a triangle
vec2 uv0 = vertices.data[triangles.data[tidx].indices.x].uv;
vec2 uv1 = vertices.data[triangles.data[tidx].indices.y].uv;
@@ -425,7 +419,8 @@ void main() {
vec3 uvw = vec3(barycentric.x * uv0 + barycentric.y * uv1 + barycentric.z * uv2, float(triangles.data[tidx].slice));
light = textureLod(sampler2DArray(source_light, linear_sampler), uvw, 0.0).rgb;
- } else if (params.env_transform[0][3] == 0.0) { // Use env_transform[0][3] to indicate when we are computing the first bounce
+ active_rays += 1.0;
+ } else if (trace_result == RAY_MISS && params.env_transform[0][3] == 0.0) { // Use env_transform[0][3] to indicate when we are computing the first bounce
// Did not hit a triangle, reach out for the sky
vec3 sky_dir = normalize(mat3(params.env_transform) * ray_dir);
@@ -439,6 +434,7 @@ void main() {
st /= vec2(PI * 2.0, PI);
light = textureLod(sampler2D(environment, linear_sampler), st, 0.0).rgb;
+ active_rays += 1.0;
}
light_average += light;
@@ -462,7 +458,9 @@ void main() {
if (params.ray_from == 0) {
light_total = vec3(0.0);
} else {
- light_total = imageLoad(bounce_accum, ivec3(atlas_pos, params.atlas_slice)).rgb;
+ vec4 accum = imageLoad(bounce_accum, ivec3(atlas_pos, params.atlas_slice));
+ light_total = accum.rgb;
+ active_rays += accum.a;
}
light_total += light_average;
@@ -477,7 +475,9 @@ void main() {
#endif
if (params.ray_to == params.ray_count) {
- light_total /= float(params.ray_count);
+ if (active_rays > 0) {
+ light_total /= active_rays;
+ }
imageStore(dest_light, ivec3(atlas_pos, params.atlas_slice), vec4(light_total, 1.0));
#ifndef USE_SH_LIGHTMAPS
vec4 accum = imageLoad(accum_light, ivec3(atlas_pos, params.atlas_slice));
@@ -485,7 +485,7 @@ void main() {
imageStore(accum_light, ivec3(atlas_pos, params.atlas_slice), accum);
#endif
} else {
- imageStore(bounce_accum, ivec3(atlas_pos, params.atlas_slice), vec4(light_total, 1.0));
+ imageStore(bounce_accum, ivec3(atlas_pos, params.atlas_slice), vec4(light_total, active_rays));
}
#endif
@@ -518,7 +518,7 @@ void main() {
float d;
vec3 norm;
- if (trace_ray(base_pos, ray_to, d, norm)) {
+ if (trace_ray(base_pos, ray_to, d, norm) == RAY_BACK) {
if (d < min_d) {
vertex_pos = base_pos + rays[i] * d + norm * params.bias * 10.0; //this bias needs to be greater than the regular bias, because otherwise later, rays will go the other side when pointing back.
min_d = d;
@@ -558,7 +558,8 @@ void main() {
vec3 barycentric;
vec3 light;
- if (trace_ray(position + ray_dir * params.bias, position + ray_dir * length(params.world_size), tidx, barycentric)) {
+ uint trace_result = trace_ray(position + ray_dir * params.bias, position + ray_dir * length(params.world_size), tidx, barycentric);
+ if (trace_result == RAY_FRONT) {
vec2 uv0 = vertices.data[triangles.data[tidx].indices.x].uv;
vec2 uv1 = vertices.data[triangles.data[tidx].indices.y].uv;
vec2 uv2 = vertices.data[triangles.data[tidx].indices.z].uv;
@@ -566,7 +567,7 @@ void main() {
light = textureLod(sampler2DArray(source_light, linear_sampler), uvw, 0.0).rgb;
light += textureLod(sampler2DArray(source_direct_light, linear_sampler), uvw, 0.0).rgb;
- } else {
+ } else if (trace_result == RAY_MISS) {
//did not hit a triangle, reach out for the sky
vec3 sky_dir = normalize(mat3(params.env_transform) * ray_dir);
diff --git a/modules/raycast/raycast_occlusion_cull.cpp b/modules/raycast/raycast_occlusion_cull.cpp
index 88c0145ebc..a55b81c05d 100644
--- a/modules/raycast/raycast_occlusion_cull.cpp
+++ b/modules/raycast/raycast_occlusion_cull.cpp
@@ -66,28 +66,45 @@ void RaycastOcclusionCull::RaycastHZBuffer::resize(const Size2i &p_size) {
void RaycastOcclusionCull::RaycastHZBuffer::update_camera_rays(const Transform3D &p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_orthogonal, ThreadWorkPool &p_thread_work_pool) {
CameraRayThreadData td;
- td.camera_matrix = p_cam_projection;
- td.camera_transform = p_cam_transform;
- td.camera_orthogonal = p_cam_orthogonal;
td.thread_count = p_thread_work_pool.get_thread_count();
+ td.z_near = p_cam_projection.get_z_near();
+ td.z_far = p_cam_projection.get_z_far() * 1.05f;
+ td.camera_pos = p_cam_transform.origin;
+ td.camera_dir = -p_cam_transform.basis.get_axis(2);
+ td.camera_orthogonal = p_cam_orthogonal;
+
+ CameraMatrix inv_camera_matrix = p_cam_projection.inverse();
+ Vector3 camera_corner_proj = Vector3(-1.0f, -1.0f, -1.0f);
+ Vector3 camera_corner_view = inv_camera_matrix.xform(camera_corner_proj);
+ td.pixel_corner = p_cam_transform.xform(camera_corner_view);
+
+ Vector3 top_corner_proj = Vector3(-1.0f, 1.0f, -1.0f);
+ Vector3 top_corner_view = inv_camera_matrix.xform(top_corner_proj);
+ Vector3 top_corner_world = p_cam_transform.xform(top_corner_view);
+
+ Vector3 left_corner_proj = Vector3(1.0f, -1.0f, -1.0f);
+ Vector3 left_corner_view = inv_camera_matrix.xform(left_corner_proj);
+ Vector3 left_corner_world = p_cam_transform.xform(left_corner_view);
+
+ td.pixel_u_interp = left_corner_world - td.pixel_corner;
+ td.pixel_v_interp = top_corner_world - td.pixel_corner;
+
+ debug_tex_range = td.z_far;
+
p_thread_work_pool.do_work(td.thread_count, this, &RaycastHZBuffer::_camera_rays_threaded, &td);
}
-void RaycastOcclusionCull::RaycastHZBuffer::_camera_rays_threaded(uint32_t p_thread, RaycastOcclusionCull::RaycastHZBuffer::CameraRayThreadData *p_data) {
+void RaycastOcclusionCull::RaycastHZBuffer::_camera_rays_threaded(uint32_t p_thread, const CameraRayThreadData *p_data) {
uint32_t packs_total = camera_rays.size();
uint32_t total_threads = p_data->thread_count;
uint32_t from = p_thread * packs_total / total_threads;
uint32_t to = (p_thread + 1 == total_threads) ? packs_total : ((p_thread + 1) * packs_total / total_threads);
- _generate_camera_rays(p_data->camera_transform, p_data->camera_matrix, p_data->camera_orthogonal, from, to);
+ _generate_camera_rays(p_data, from, to);
}
-void RaycastOcclusionCull::RaycastHZBuffer::_generate_camera_rays(const Transform3D &p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_orthogonal, int p_from, int p_to) {
- Size2i buffer_size = sizes[0];
-
- CameraMatrix inv_camera_matrix = p_cam_projection.inverse();
- float z_far = p_cam_projection.get_z_far() * 1.05f;
- debug_tex_range = z_far;
+void RaycastOcclusionCull::RaycastHZBuffer::_generate_camera_rays(const CameraRayThreadData *p_data, int p_from, int p_to) {
+ const Size2i &buffer_size = sizes[0];
RayPacket *ray_packets = camera_rays.ptr();
uint32_t *ray_masks = camera_ray_masks.ptr();
@@ -98,56 +115,52 @@ void RaycastOcclusionCull::RaycastHZBuffer::_generate_camera_rays(const Transfor
int tile_y = (i / packs_size.x) * TILE_SIZE;
for (int j = 0; j < TILE_RAYS; j++) {
- float x = tile_x + j % TILE_SIZE;
- float y = tile_y + j / TILE_SIZE;
-
- ray_masks[i * TILE_RAYS + j] = ~0U;
+ int x = tile_x + j % TILE_SIZE;
+ int y = tile_y + j / TILE_SIZE;
if (x >= buffer_size.x || y >= buffer_size.y) {
ray_masks[i * TILE_RAYS + j] = 0U;
- } else {
- float u = x / (buffer_size.x - 1);
- float v = y / (buffer_size.y - 1);
- u = u * 2.0f - 1.0f;
- v = v * 2.0f - 1.0f;
-
- Plane pixel_proj = Plane(u, v, -1.0, 1.0);
- Plane pixel_view = inv_camera_matrix.xform4(pixel_proj);
- Vector3 pixel_world = p_cam_transform.xform(pixel_view.normal);
-
- Vector3 dir;
- if (p_cam_orthogonal) {
- dir = -p_cam_transform.basis.get_axis(2);
- } else {
- dir = (pixel_world - p_cam_transform.origin).normalized();
- }
-
- packet.ray.org_x[j] = pixel_world.x;
- packet.ray.org_y[j] = pixel_world.y;
- packet.ray.org_z[j] = pixel_world.z;
+ continue;
+ }
- packet.ray.dir_x[j] = dir.x;
- packet.ray.dir_y[j] = dir.y;
- packet.ray.dir_z[j] = dir.z;
+ ray_masks[i * TILE_RAYS + j] = ~0U;
- packet.ray.tnear[j] = 0.0f;
+ float u = (float(x) + 0.5f) / buffer_size.x;
+ float v = (float(y) + 0.5f) / buffer_size.y;
+ Vector3 pixel_pos = p_data->pixel_corner + u * p_data->pixel_u_interp + v * p_data->pixel_v_interp;
- packet.ray.time[j] = 0.0f;
+ packet.ray.tnear[j] = p_data->z_near;
- packet.ray.flags[j] = 0;
- packet.ray.mask[j] = -1;
- packet.hit.geomID[j] = RTC_INVALID_GEOMETRY_ID;
+ Vector3 dir;
+ if (p_data->camera_orthogonal) {
+ dir = -p_data->camera_dir;
+ packet.ray.org_x[j] = pixel_pos.x - dir.x * p_data->z_near;
+ packet.ray.org_y[j] = pixel_pos.y - dir.y * p_data->z_near;
+ packet.ray.org_z[j] = pixel_pos.z - dir.z * p_data->z_near;
+ } else {
+ dir = (pixel_pos - p_data->camera_pos).normalized();
+ packet.ray.org_x[j] = p_data->camera_pos.x;
+ packet.ray.org_y[j] = p_data->camera_pos.y;
+ packet.ray.org_z[j] = p_data->camera_pos.z;
+ packet.ray.tnear[j] /= dir.dot(p_data->camera_dir);
}
- packet.ray.tfar[j] = z_far;
+ packet.ray.dir_x[j] = dir.x;
+ packet.ray.dir_y[j] = dir.y;
+ packet.ray.dir_z[j] = dir.z;
+
+ packet.ray.tfar[j] = p_data->z_far;
+ packet.ray.time[j] = 0.0f;
+
+ packet.ray.flags[j] = 0;
+ packet.ray.mask[j] = -1;
+ packet.hit.geomID[j] = RTC_INVALID_GEOMETRY_ID;
}
}
}
-void RaycastOcclusionCull::RaycastHZBuffer::sort_rays() {
- if (is_empty()) {
- return;
- }
+void RaycastOcclusionCull::RaycastHZBuffer::sort_rays(const Vector3 &p_camera_dir, bool p_orthogonal) {
+ ERR_FAIL_COND(is_empty());
Size2i buffer_size = sizes[0];
for (int i = 0; i < packs_size.y; i++) {
@@ -161,7 +174,17 @@ void RaycastOcclusionCull::RaycastHZBuffer::sort_rays() {
}
int k = tile_i * TILE_SIZE + tile_j;
int packet_index = i * packs_size.x + j;
- mips[0][y * buffer_size.x + x] = camera_rays[packet_index].ray.tfar[k];
+ float d = camera_rays[packet_index].ray.tfar[k];
+
+ if (!p_orthogonal) {
+ const float &dir_x = camera_rays[packet_index].ray.dir_x[k];
+ const float &dir_y = camera_rays[packet_index].ray.dir_y[k];
+ const float &dir_z = camera_rays[packet_index].ray.dir_z[k];
+ float cos_theta = p_camera_dir.x * dir_x + p_camera_dir.y * dir_y + p_camera_dir.z * dir_z;
+ d *= cos_theta;
+ }
+
+ mips[0][y * buffer_size.x + x] = d;
}
}
}
@@ -514,7 +537,7 @@ void RaycastOcclusionCull::buffer_update(RID p_buffer, const Transform3D &p_cam_
buffer.update_camera_rays(p_cam_transform, p_cam_projection, p_cam_orthogonal, p_thread_pool);
scenario.raycast(buffer.camera_rays, buffer.camera_ray_masks, p_thread_pool);
- buffer.sort_rays();
+ buffer.sort_rays(-p_cam_transform.basis.get_axis(2), p_cam_orthogonal);
buffer.update_mips();
}
diff --git a/modules/raycast/raycast_occlusion_cull.h b/modules/raycast/raycast_occlusion_cull.h
index 85710a790c..cc87a6342c 100644
--- a/modules/raycast/raycast_occlusion_cull.h
+++ b/modules/raycast/raycast_occlusion_cull.h
@@ -51,15 +51,20 @@ public:
Size2i packs_size;
struct CameraRayThreadData {
- CameraMatrix camera_matrix;
- Transform3D camera_transform;
- bool camera_orthogonal;
int thread_count;
+ float z_near;
+ float z_far;
+ Vector3 camera_dir;
+ Vector3 camera_pos;
+ Vector3 pixel_corner;
+ Vector3 pixel_u_interp;
+ Vector3 pixel_v_interp;
+ bool camera_orthogonal;
Size2i buffer_size;
};
- void _camera_rays_threaded(uint32_t p_thread, CameraRayThreadData *p_data);
- void _generate_camera_rays(const Transform3D &p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_orthogonal, int p_from, int p_to);
+ void _camera_rays_threaded(uint32_t p_thread, const CameraRayThreadData *p_data);
+ void _generate_camera_rays(const CameraRayThreadData *p_data, int p_from, int p_to);
public:
LocalVector<RayPacket> camera_rays;
@@ -68,7 +73,7 @@ public:
virtual void clear() override;
virtual void resize(const Size2i &p_size) override;
- void sort_rays();
+ void sort_rays(const Vector3 &p_camera_dir, bool p_orthogonal);
void update_camera_rays(const Transform3D &p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_orthogonal, ThreadWorkPool &p_thread_work_pool);
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 18:42:21 +0000