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virtualx-engine/modules/lightmapper_rd/lightmapper_rd.h

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One Copyright Update to rule them all As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see".
2023-01-05 13:25:55 +01:00
/**************************************************************************/
/* lightmapper_rd.h */
/**************************************************************************/
/* 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. */
/**************************************************************************/
Style: Fix missing/invalid copyright headers
2020-05-14 13:20:05 +02:00
New lightmapper -Added LocalVector (needed it) -Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too) -Fixes and changes all around the place -Added library for 128 bits fixed point (required for Delaunay3D)
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#ifndef LIGHTMAPPER_RD_H
#define LIGHTMAPPER_RD_H
Reorganized core/ directory, it was too fatty already -Removed FuncRef, since Callable makes it obsolete -Removed int_types.h as its obsolete in c++11+ -Changed color names code
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#include "core/templates/local_vector.h"
New lightmapper -Added LocalVector (needed it) -Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too) -Fixes and changes all around the place -Added library for 128 bits fixed point (required for Delaunay3D)
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#include "scene/3d/lightmapper.h"
#include "scene/resources/mesh.h"
#include "servers/rendering/rendering_device.h"
GPULightmapper: execute dilate before denoise Dilate fills gaps that are caused by the rasterization. Previously denoise was done before dilate which caused the gaps to become filled (non-zero). This resulted that the gaps were not recognized by dilate and the background color leaked. This is fixed by executing dilate before denoise.
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class RDShaderFile;
New lightmapper -Added LocalVector (needed it) -Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too) -Fixes and changes all around the place -Added library for 128 bits fixed point (required for Delaunay3D)
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class LightmapperRD : public Lightmapper {
GDCLASS(LightmapperRD, Lightmapper)
Rewrite the GPU Lightmapper's indirect lighting logic to match Godot 3.5's CPU Lightmapper. Port over the logic from Godot 3.5 for indirect lighting. This should fix many issues about indirect bounces causing more energy and improve the overall quality of the result.
2023-10-13 19:32:22 +02:00
struct BakeParameters {
float world_size[3] = {};
float bias = 0.0;
float to_cell_offset[3] = {};
int32_t grid_size = 0;
float to_cell_size[3] = {};
uint32_t light_count = 0;
float env_transform[12] = {};
int32_t atlas_size[2] = {};
float exposure_normalization = 0.0f;
uint32_t bounces = 0;
float bounce_indirect_energy = 0.0f;
uint32_t pad[3] = {};
};
New lightmapper -Added LocalVector (needed it) -Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too) -Fixes and changes all around the place -Added library for 128 bits fixed point (required for Delaunay3D)
2020-05-01 14:34:23 +02:00
struct MeshInstance {
MeshData data;
int slice = 0;
Vector2i offset;
};
struct Light {
Initialize class/struct variables with default values in modules/
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float position[3] = {};
New lightmapper -Added LocalVector (needed it) -Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too) -Fixes and changes all around the place -Added library for 128 bits fixed point (required for Delaunay3D)
2020-05-01 14:34:23 +02:00
uint32_t type = LIGHT_TYPE_DIRECTIONAL;
Initialize class/struct variables with default values in modules/
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float direction[3] = {};
float energy = 0.0;
float color[3] = {};
float size = 0.0;
float range = 0.0;
float attenuation = 0.0;
float cos_spot_angle = 0.0;
float inv_spot_attenuation = 0.0;
Rewrite the GPU Lightmapper's indirect lighting logic to match Godot 3.5's CPU Lightmapper. Port over the logic from Godot 3.5 for indirect lighting. This should fix many issues about indirect bounces causing more energy and improve the overall quality of the result.
2023-10-13 19:32:22 +02:00
float indirect_energy = 0.0;
add support for soft shadows to the lightmapper
2022-06-15 00:55:53 +02:00
float shadow_blur = 0.0;
Initialize class/struct variables with default values in modules/
2021-02-08 10:57:18 +01:00
uint32_t static_bake = 0;
Rewrite the GPU Lightmapper's indirect lighting logic to match Godot 3.5's CPU Lightmapper. Port over the logic from Godot 3.5 for indirect lighting. This should fix many issues about indirect bounces causing more energy and improve the overall quality of the result.
2023-10-13 19:32:22 +02:00
uint32_t pad = 0;
New lightmapper -Added LocalVector (needed it) -Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too) -Fixes and changes all around the place -Added library for 128 bits fixed point (required for Delaunay3D)
2020-05-01 14:34:23 +02:00
bool operator<(const Light &p_light) const {
return type < p_light.type;
}
};
struct Vertex {
Initialize class/struct variables with default values in modules/
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float position[3] = {};
float normal_z = 0.0;
float uv[2] = {};
float normal_xy[2] = {};
New lightmapper -Added LocalVector (needed it) -Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too) -Fixes and changes all around the place -Added library for 128 bits fixed point (required for Delaunay3D)
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bool operator==(const Vertex &p_vtx) const {
return (position[0] == p_vtx.position[0]) &&
clang-format: Disable alignment of operands, too unreliable Sets `AlignOperands` to `DontAlign`. `clang-format` developers seem to mostly care about space-based indentation and every other version of clang-format breaks the bad mismatch of tabs and spaces that it seems to use for operand alignment. So it's better without, so that it respects our two-tabs `ContinuationIndentWidth`.
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(position[1] == p_vtx.position[1]) &&
(position[2] == p_vtx.position[2]) &&
(uv[0] == p_vtx.uv[0]) &&
(uv[1] == p_vtx.uv[1]) &&
(normal_xy[0] == p_vtx.normal_xy[0]) &&
(normal_xy[1] == p_vtx.normal_xy[1]) &&
(normal_z == p_vtx.normal_z);
New lightmapper -Added LocalVector (needed it) -Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too) -Fixes and changes all around the place -Added library for 128 bits fixed point (required for Delaunay3D)
2020-05-01 14:34:23 +02:00
}
};
struct Edge {
Vector3 a;
Vector3 b;
Vector3 na;
Vector3 nb;
bool operator==(const Edge &p_seam) const {
return a == p_seam.a && b == p_seam.b && na == p_seam.na && nb == p_seam.nb;
}
Edge() {
}
Edge(const Vector3 &p_a, const Vector3 &p_b, const Vector3 &p_na, const Vector3 &p_nb) {
a = p_a;
b = p_b;
na = p_na;
nb = p_nb;
}
};
struct Probe {
Initialize class/struct variables with default values in modules/
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float position[4] = {};
New lightmapper -Added LocalVector (needed it) -Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too) -Fixes and changes all around the place -Added library for 128 bits fixed point (required for Delaunay3D)
2020-05-01 14:34:23 +02:00
};
Vector<Probe> probe_positions;
struct EdgeHash {
_FORCE_INLINE_ static uint32_t hash(const Edge &p_edge) {
Clean up Hash Functions Clean up and do fixes to hash functions and newly introduced murmur3 hashes in #61934 * Clean up usage of murmur3 * Fixed usages of binary murmur3 on floats (this is invalid) * Changed DJB2 to use xor (which seems to be better)
2022-06-18 16:20:55 +02:00
uint32_t h = hash_murmur3_one_float(p_edge.a.x);
h = hash_murmur3_one_float(p_edge.a.y, h);
h = hash_murmur3_one_float(p_edge.a.z, h);
h = hash_murmur3_one_float(p_edge.b.x, h);
h = hash_murmur3_one_float(p_edge.b.y, h);
h = hash_murmur3_one_float(p_edge.b.z, h);
New lightmapper -Added LocalVector (needed it) -Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too) -Fixes and changes all around the place -Added library for 128 bits fixed point (required for Delaunay3D)
2020-05-01 14:34:23 +02:00
return h;
}
};
struct EdgeUV2 {
Vector2 a;
Vector2 b;
Vector2i indices;
bool operator==(const EdgeUV2 &p_uv2) const {
return a == p_uv2.a && b == p_uv2.b;
}
bool seam_found = false;
EdgeUV2(Vector2 p_a, Vector2 p_b, Vector2i p_indices) {
a = p_a;
b = p_b;
indices = p_indices;
}
EdgeUV2() {}
};
struct Seam {
Vector2i a;
Vector2i b;
uint32_t slice;
bool operator<(const Seam &p_seam) const {
return slice < p_seam.slice;
}
};
struct VertexHash {
_FORCE_INLINE_ static uint32_t hash(const Vertex &p_vtx) {
Clean up Hash Functions Clean up and do fixes to hash functions and newly introduced murmur3 hashes in #61934 * Clean up usage of murmur3 * Fixed usages of binary murmur3 on floats (this is invalid) * Changed DJB2 to use xor (which seems to be better)
2022-06-18 16:20:55 +02:00
uint32_t h = hash_murmur3_one_float(p_vtx.position[0]);
h = hash_murmur3_one_float(p_vtx.position[1], h);
h = hash_murmur3_one_float(p_vtx.position[2], h);
h = hash_murmur3_one_float(p_vtx.uv[0], h);
h = hash_murmur3_one_float(p_vtx.uv[1], h);
h = hash_murmur3_one_float(p_vtx.normal_xy[0], h);
h = hash_murmur3_one_float(p_vtx.normal_xy[1], h);
h = hash_murmur3_one_float(p_vtx.normal_z, h);
return hash_fmix32(h);
New lightmapper -Added LocalVector (needed it) -Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too) -Fixes and changes all around the place -Added library for 128 bits fixed point (required for Delaunay3D)
2020-05-01 14:34:23 +02:00
}
};
GPULightmapper's triangles and their bounding box will be in-sync Previously the bounding boxes and triangles were maintained in two separate arrays (Vectors). As the triangle vector was sorted and the bounding-box array was not , the order of both arrays differed. This meant that the index in one was different than the other, which caused lookup issues. To prevent this, the bounding-box is now part of the triangle structure so that there is a single structure that cannot become out-of-sync anymore.
2021-09-11 14:02:37 +02:00
struct Triangle {
uint32_t indices[3] = {};
uint32_t slice = 0;
Initialize class/struct variables with default values in modules/
2021-02-08 10:57:18 +01:00
float min_bounds[3] = {};
float pad0 = 0.0;
float max_bounds[3] = {};
float pad1 = 0.0;
New lightmapper -Added LocalVector (needed it) -Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too) -Fixes and changes all around the place -Added library for 128 bits fixed point (required for Delaunay3D)
2020-05-01 14:34:23 +02:00
bool operator<(const Triangle &p_triangle) const {
return slice < p_triangle.slice;
}
};
Vector<MeshInstance> mesh_instances;
Vector<Light> lights;
struct TriangleSort {
Initialize class/struct variables with default values in modules/
2021-02-08 10:57:18 +01:00
uint32_t cell_index = 0;
uint32_t triangle_index = 0;
New lightmapper -Added LocalVector (needed it) -Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too) -Fixes and changes all around the place -Added library for 128 bits fixed point (required for Delaunay3D)
2020-05-01 14:34:23 +02:00
bool operator<(const TriangleSort &p_triangle_sort) const {
return cell_index < p_triangle_sort.cell_index; //sorting by triangle index in this case makes no sense
}
};
Fix some array size function definition mismatch.
2022-08-04 13:06:17 +02:00
void _plot_triangle_into_triangle_index_list(int p_size, const Vector3i &p_ofs, const AABB &p_bounds, const Vector3 p_points[3], uint32_t p_triangle_index, LocalVector<TriangleSort> &triangles, uint32_t p_grid_size);
New lightmapper -Added LocalVector (needed it) -Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too) -Fixes and changes all around the place -Added library for 128 bits fixed point (required for Delaunay3D)
2020-05-01 14:34:23 +02:00
struct RasterPushConstant {
Initialize class/struct variables with default values in modules/
2021-02-08 10:57:18 +01:00
float atlas_size[2] = {};
float uv_offset[2] = {};
float to_cell_size[3] = {};
uint32_t base_triangle = 0;
float to_cell_offset[3] = {};
float bias = 0.0;
int32_t grid_size[3] = {};
uint32_t pad2 = 0;
New lightmapper -Added LocalVector (needed it) -Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too) -Fixes and changes all around the place -Added library for 128 bits fixed point (required for Delaunay3D)
2020-05-01 14:34:23 +02:00
};
struct RasterSeamsPushConstant {
Initialize class/struct variables with default values in modules/
2021-02-08 10:57:18 +01:00
uint32_t base_index = 0;
uint32_t slice = 0;
float uv_offset[2] = {};
uint32_t debug = 0;
float blend = 0.0;
uint32_t pad[2] = {};
New lightmapper -Added LocalVector (needed it) -Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too) -Fixes and changes all around the place -Added library for 128 bits fixed point (required for Delaunay3D)
2020-05-01 14:34:23 +02:00
};
struct PushConstant {
Rewrite the GPU Lightmapper's indirect lighting logic to match Godot 3.5's CPU Lightmapper. Port over the logic from Godot 3.5 for indirect lighting. This should fix many issues about indirect bounces causing more energy and improve the overall quality of the result.
2023-10-13 19:32:22 +02:00
uint32_t atlas_slice = 0;
Initialize class/struct variables with default values in modules/
2021-02-08 10:57:18 +01:00
uint32_t ray_count = 0;
uint32_t ray_from = 0;
Rewrite the GPU Lightmapper's indirect lighting logic to match Godot 3.5's CPU Lightmapper. Port over the logic from Godot 3.5 for indirect lighting. This should fix many issues about indirect bounces causing more energy and improve the overall quality of the result.
2023-10-13 19:32:22 +02:00
uint32_t ray_to = 0;
uint32_t region_ofs[2] = {};
uint32_t probe_count = 0;
uint32_t pad = 0;
New lightmapper -Added LocalVector (needed it) -Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too) -Fixes and changes all around the place -Added library for 128 bits fixed point (required for Delaunay3D)
2020-05-01 14:34:23 +02:00
};
Vector<Ref<Image>> bake_textures;
Vector<Color> probe_values;
Replace OIDN denoiser with a JNLM denoiser compute shader implementation.
2023-09-11 19:59:50 +02:00
struct DenoiseParams {
float spatial_bandwidth;
float light_bandwidth;
float albedo_bandwidth;
float normal_bandwidth;
float filter_strength;
float pad[3];
};
New lightmapper -Added LocalVector (needed it) -Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too) -Fixes and changes all around the place -Added library for 128 bits fixed point (required for Delaunay3D)
2020-05-01 14:34:23 +02:00
BakeError _blit_meshes_into_atlas(int p_max_texture_size, Vector<Ref<Image>> &albedo_images, Vector<Ref<Image>> &emission_images, AABB &bounds, Size2i &atlas_size, int &atlas_slices, BakeStepFunc p_step_function, void *p_bake_userdata);
GPULightmapper's triangles and their bounding box will be in-sync Previously the bounding boxes and triangles were maintained in two separate arrays (Vectors). As the triangle vector was sorted and the bounding-box array was not , the order of both arrays differed. This meant that the index in one was different than the other, which caused lookup issues. To prevent this, the bounding-box is now part of the triangle structure so that there is a single structure that cannot become out-of-sync anymore.
2021-09-11 14:02:37 +02:00
void _create_acceleration_structures(RenderingDevice *rd, Size2i atlas_size, int atlas_slices, AABB &bounds, int grid_size, Vector<Probe> &probe_positions, GenerateProbes p_generate_probes, Vector<int> &slice_triangle_count, Vector<int> &slice_seam_count, RID &vertex_buffer, RID &triangle_buffer, RID &lights_buffer, RID &triangle_cell_indices_buffer, RID &probe_positions_buffer, RID &grid_texture, RID &seams_buffer, BakeStepFunc p_step_function, void *p_bake_userdata);
New lightmapper -Added LocalVector (needed it) -Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too) -Fixes and changes all around the place -Added library for 128 bits fixed point (required for Delaunay3D)
2020-05-01 14:34:23 +02:00
void _raster_geometry(RenderingDevice *rd, Size2i atlas_size, int atlas_slices, int grid_size, AABB bounds, float p_bias, Vector<int> slice_triangle_count, RID position_tex, RID unocclude_tex, RID normal_tex, RID raster_depth_buffer, RID rasterize_shader, RID raster_base_uniform);
GPULightmapper: execute dilate before denoise Dilate fills gaps that are caused by the rasterization. Previously denoise was done before dilate which caused the gaps to become filled (non-zero). This resulted that the gaps were not recognized by dilate and the background color leaked. This is fixed by executing dilate before denoise.
2021-09-26 09:16:31 +02:00
BakeError _dilate(RenderingDevice *rd, Ref<RDShaderFile> &compute_shader, RID &compute_base_uniform_set, PushConstant &push_constant, RID &source_light_tex, RID &dest_light_tex, const Size2i &atlas_size, int atlas_slices);
Replace OIDN denoiser with a JNLM denoiser compute shader implementation.
2023-09-11 19:59:50 +02:00
BakeError _denoise(RenderingDevice *p_rd, Ref<RDShaderFile> &p_compute_shader, const RID &p_compute_base_uniform_set, PushConstant &p_push_constant, RID p_source_light_tex, RID p_source_normal_tex, RID p_dest_light_tex, float p_denoiser_strength, const Size2i &p_atlas_size, int p_atlas_slices, bool p_bake_sh, BakeStepFunc p_step_function);
GPULightmapper: execute dilate before denoise Dilate fills gaps that are caused by the rasterization. Previously denoise was done before dilate which caused the gaps to become filled (non-zero). This resulted that the gaps were not recognized by dilate and the background color leaked. This is fixed by executing dilate before denoise.
2021-09-26 09:16:31 +02:00
Re-add optional OIDN denoise as an external executable.
2023-10-04 21:32:39 +02:00
Error _store_pfm(RenderingDevice *p_rd, RID p_atlas_tex, int p_index, const Size2i &p_atlas_size, const String &p_name);
Ref<Image> _read_pfm(const String &p_name);
BakeError _denoise_oidn(RenderingDevice *p_rd, RID p_source_light_tex, RID p_source_normal_tex, RID p_dest_light_tex, const Size2i &p_atlas_size, int p_atlas_slices, bool p_bake_sh, const String &p_exe);
New lightmapper -Added LocalVector (needed it) -Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too) -Fixes and changes all around the place -Added library for 128 bits fixed point (required for Delaunay3D)
2020-05-01 14:34:23 +02:00
public:
Add override keywords.
2020-07-10 12:34:39 +02:00
virtual void add_mesh(const MeshData &p_mesh) override;
Rewrite the GPU Lightmapper's indirect lighting logic to match Godot 3.5's CPU Lightmapper. Port over the logic from Godot 3.5 for indirect lighting. This should fix many issues about indirect bounces causing more energy and improve the overall quality of the result.
2023-10-13 19:32:22 +02:00
virtual void add_directional_light(bool p_static, const Vector3 &p_direction, const Color &p_color, float p_energy, float p_indirect_energy, float p_angular_distance, float p_shadow_blur) override;
virtual void add_omni_light(bool p_static, const Vector3 &p_position, const Color &p_color, float p_energy, float p_indirect_energy, float p_range, float p_attenuation, float p_size, float p_shadow_blur) override;
virtual void add_spot_light(bool p_static, const Vector3 &p_position, const Vector3 p_direction, const Color &p_color, float p_energy, float p_indirect_energy, float p_range, float p_attenuation, float p_spot_angle, float p_spot_attenuation, float p_size, float p_shadow_blur) override;
Add override keywords.
2020-07-10 12:34:39 +02:00
virtual void add_probe(const Vector3 &p_position) override;
Rewrite the GPU Lightmapper's indirect lighting logic to match Godot 3.5's CPU Lightmapper. Port over the logic from Godot 3.5 for indirect lighting. This should fix many issues about indirect bounces causing more energy and improve the overall quality of the result.
2023-10-13 19:32:22 +02:00
virtual BakeError bake(BakeQuality p_quality, bool p_use_denoiser, float p_denoiser_strength, int p_bounces, float p_bounce_indirect_energy, float p_bias, int p_max_texture_size, bool p_bake_sh, bool p_texture_for_bounces, GenerateProbes p_generate_probes, const Ref<Image> &p_environment_panorama, const Basis &p_environment_transform, BakeStepFunc p_step_function = nullptr, void *p_bake_userdata = nullptr, float p_exposure_normalization = 1.0) override;
Add override keywords.
2020-07-10 12:34:39 +02:00
int get_bake_texture_count() const override;
Ref<Image> get_bake_texture(int p_index) const override;
int get_bake_mesh_count() const override;
Variant get_bake_mesh_userdata(int p_index) const override;
Rect2 get_bake_mesh_uv_scale(int p_index) const override;
int get_bake_mesh_texture_slice(int p_index) const override;
int get_bake_probe_count() const override;
Vector3 get_bake_probe_point(int p_probe) const override;
Vector<Color> get_bake_probe_sh(int p_probe) const override;
New lightmapper -Added LocalVector (needed it) -Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too) -Fixes and changes all around the place -Added library for 128 bits fixed point (required for Delaunay3D)
2020-05-01 14:34:23 +02:00
LightmapperRD();
};
Code quality: Fix header guards consistency Adds `header_guards.sh` bash script, used in CI to validate future changes. Can be run locally to fix invalid header guards.
2022-07-23 23:41:51 +02:00
#endif // LIGHTMAPPER_RD_H
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