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Code Releases Wiki Activity

Implement Particle Trails

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-Enable the trails and set the length in seconds
-Provide a mesh with a skeleton and a skin
-Or, alternatively use one of the built-in TubeTrailMesh/RibbonTrailMesh
-Works deterministically
-Fixed particle collisions (were broken)
-Not working in 2D yet (that will happen next)
This commit is contained in:
reduz
2021-04-27 12:43:49 -03:00
parent 0ad03ba052
commit 90056460ad
33 changed files with 1576 additions and 180 deletions
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31
scene/3d/gpu_particles_3d.h
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@@ -34,6 +34,7 @@
#include "core/templates/rid.h"
#include "scene/3d/visual_instance_3d.h"
#include "scene/resources/material.h"
#include "scene/resources/skin.h"
class GPUParticles3D : public GeometryInstance3D {
private:
@@ -46,6 +47,13 @@ public:
DRAW_ORDER_VIEW_DEPTH,
};
enum TransformAlign {
TRANSFORM_ALIGN_DISABLED,
TRANSFORM_ALIGN_Z_BILLBOARD,
TRANSFORM_ALIGN_Y_TO_VELOCITY,
TRANSFORM_ALIGN_Z_BILLBOARD_Y_TO_VELOCITY
};
enum {
MAX_DRAW_PASSES = 4
};
@@ -64,17 +72,26 @@ private:
bool local_coords;
int fixed_fps;
bool fractional_delta;
bool interpolate = true;
NodePath sub_emitter;
float collision_base_size;
bool trail_enabled = false;
float trail_length = 0.3;
TransformAlign transform_align = TRANSFORM_ALIGN_DISABLED;
Ref<Material> process_material;
DrawOrder draw_order;
Vector<Ref<Mesh>> draw_passes;
Ref<Skin> skin;
void _attach_sub_emitter();
void _skinning_changed();
protected:
static void _bind_methods();
void _notification(int p_what);
@@ -96,6 +113,8 @@ public:
void set_process_material(const Ref<Material> &p_material);
void set_speed_scale(float p_scale);
void set_collision_base_size(float p_ratio);
void set_enable_trail(bool p_enabled);
void set_trail_length(float p_seconds);
bool is_emitting() const;
int get_amount() const;
@@ -109,6 +128,8 @@ public:
Ref<Material> get_process_material() const;
float get_speed_scale() const;
float get_collision_base_size() const;
bool is_trail_enabled() const;
float get_trail_length() const;
void set_fixed_fps(int p_count);
int get_fixed_fps() const;
@@ -116,6 +137,9 @@ public:
void set_fractional_delta(bool p_enable);
bool get_fractional_delta() const;
void set_interpolate(bool p_enable);
bool get_interpolate() const;
void set_draw_order(DrawOrder p_order);
DrawOrder get_draw_order() const;
@@ -130,6 +154,12 @@ public:
void set_sub_emitter(const NodePath &p_path);
NodePath get_sub_emitter() const;
void set_skin(const Ref<Skin> &p_skin);
Ref<Skin> get_skin() const;
void set_transform_align(TransformAlign p_align);
TransformAlign get_transform_align() const;
void restart();
enum EmitFlags {
@@ -148,6 +178,7 @@ public:
};
VARIANT_ENUM_CAST(GPUParticles3D::DrawOrder)
VARIANT_ENUM_CAST(GPUParticles3D::TransformAlign)
VARIANT_ENUM_CAST(GPUParticles3D::EmitFlags)
#endif // PARTICLES_H