235 lines
6.7 KiB
C++
235 lines
6.7 KiB
C++
/*************************************************************************/
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/* gi_probe.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md) */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef GIPROBE_H
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#define GIPROBE_H
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#include "multimesh_instance.h"
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#include "scene/3d/visual_instance.h"
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class GIProbeData : public Resource {
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GDCLASS(GIProbeData, Resource);
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RID probe;
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protected:
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static void _bind_methods();
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public:
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void set_bounds(const Rect3 &p_bounds);
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Rect3 get_bounds() const;
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void set_cell_size(float p_size);
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float get_cell_size() const;
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void set_to_cell_xform(const Transform &p_xform);
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Transform get_to_cell_xform() const;
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void set_dynamic_data(const PoolVector<int> &p_data);
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PoolVector<int> get_dynamic_data() const;
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void set_dynamic_range(int p_range);
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int get_dynamic_range() const;
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void set_propagation(float p_range);
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float get_propagation() const;
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void set_energy(float p_range);
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float get_energy() const;
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void set_bias(float p_range);
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float get_bias() const;
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void set_normal_bias(float p_range);
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float get_normal_bias() const;
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void set_interior(bool p_enable);
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bool is_interior() const;
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void set_compress(bool p_enable);
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bool is_compressed() const;
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virtual RID get_rid() const;
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GIProbeData();
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~GIProbeData();
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};
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class GIProbe : public VisualInstance {
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GDCLASS(GIProbe, VisualInstance);
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public:
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enum Subdiv {
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SUBDIV_64,
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SUBDIV_128,
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SUBDIV_256,
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SUBDIV_512,
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SUBDIV_MAX
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};
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private:
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//stuff used for bake
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struct Baker {
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enum {
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CHILD_EMPTY = 0xFFFFFFFF
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};
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struct Cell {
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uint32_t childs[8];
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float albedo[3]; //albedo in RGB24
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float emission[3]; //accumulated light in 16:16 fixed point (needs to be integer for moving lights fast)
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float normal[3];
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uint32_t used_sides;
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float alpha; //used for upsampling
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int level;
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Cell() {
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for (int i = 0; i < 8; i++) {
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childs[i] = CHILD_EMPTY;
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}
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for (int i = 0; i < 3; i++) {
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emission[i] = 0;
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albedo[i] = 0;
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normal[i] = 0;
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}
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alpha = 0;
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used_sides = 0;
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level = 0;
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}
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};
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Vector<Cell> bake_cells;
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int cell_subdiv;
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struct MaterialCache {
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//128x128 textures
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Vector<Color> albedo;
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Vector<Color> emission;
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};
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Vector<Color> _get_bake_texture(Ref<Image> p_image, const Color &p_color);
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Map<Ref<Material>, MaterialCache> material_cache;
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MaterialCache _get_material_cache(Ref<Material> p_material);
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int leaf_voxel_count;
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Rect3 po2_bounds;
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int axis_cell_size[3];
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struct PlotMesh {
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Ref<Material> override_material;
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Vector<Ref<Material> > instance_materials;
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Ref<ArrayMesh> mesh;
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Transform local_xform;
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};
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Transform to_cell_space;
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List<PlotMesh> mesh_list;
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};
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Ref<GIProbeData> probe_data;
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RID gi_probe;
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Subdiv subdiv;
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Vector3 extents;
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int dynamic_range;
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float energy;
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float bias;
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float normal_bias;
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float propagation;
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bool interior;
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bool compress;
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int color_scan_cell_width;
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int bake_texture_size;
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Vector<Color> _get_bake_texture(Ref<Image> p_image, const Color &p_color);
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Baker::MaterialCache _get_material_cache(Ref<Material> p_material, Baker *p_baker);
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void _plot_face(int p_idx, int p_level, int p_x, int p_y, int p_z, const Vector3 *p_vtx, const Vector2 *p_uv, const Baker::MaterialCache &p_material, const Rect3 &p_aabb, Baker *p_baker);
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void _plot_mesh(const Transform &p_xform, Ref<ArrayMesh> &p_mesh, Baker *p_baker, const Vector<Ref<Material> > &p_materials, const Ref<Material> &p_override_material);
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void _find_meshes(Node *p_at_node, Baker *p_baker);
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void _fixup_plot(int p_idx, int p_level, int p_x, int p_y, int p_z, Baker *p_baker);
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void _debug_mesh(int p_idx, int p_level, const Rect3 &p_aabb, Ref<MultiMesh> &p_multimesh, int &idx, Baker *p_baker);
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void _create_debug_mesh(Baker *p_baker);
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void _debug_bake();
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protected:
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static void _bind_methods();
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public:
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void set_probe_data(const Ref<GIProbeData> &p_data);
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Ref<GIProbeData> get_probe_data() const;
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void set_subdiv(Subdiv p_subdiv);
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Subdiv get_subdiv() const;
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void set_extents(const Vector3 &p_extents);
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Vector3 get_extents() const;
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void set_dynamic_range(int p_dynamic_range);
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int get_dynamic_range() const;
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void set_energy(float p_energy);
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float get_energy() const;
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void set_bias(float p_bias);
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float get_bias() const;
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void set_normal_bias(float p_normal_bias);
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float get_normal_bias() const;
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void set_propagation(float p_propagation);
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float get_propagation() const;
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void set_interior(bool p_enable);
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bool is_interior() const;
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void set_compress(bool p_enable);
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bool is_compressed() const;
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void bake(Node *p_from_node = NULL, bool p_create_visual_debug = false);
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virtual Rect3 get_aabb() const;
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virtual PoolVector<Face3> get_faces(uint32_t p_usage_flags) const;
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GIProbe();
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~GIProbe();
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};
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VARIANT_ENUM_CAST(GIProbe::Subdiv)
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#endif // GIPROBE_H
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