Addition of SDFGI for open world global illumination

Move GI to a deferred pass

1 files changed, 15 insertions, 4 deletions

diff --git a/servers/rendering/rendering_device.h b/servers/rendering/rendering_device.h
index ee39ee11ed..72afc7c621 100644
--- a/servers/rendering/rendering_device.h
+++ b/servers/rendering/rendering_device.h
@@ -467,9 +467,11 @@ public:
 
 	// This ID is warranted to be unique for the same formats, does not need to be freed
 	virtual FramebufferFormatID framebuffer_format_create(const Vector<AttachmentFormat> &p_format) = 0;
+	virtual FramebufferFormatID framebuffer_format_create_empty(const Size2i &p_size) = 0;
 	virtual TextureSamples framebuffer_format_get_texture_samples(FramebufferFormatID p_format) = 0;
 
 	virtual RID framebuffer_create(const Vector<RID> &p_texture_attachments, FramebufferFormatID p_format_check = INVALID_ID) = 0;
+	virtual RID framebuffer_create_empty(const Size2i &p_size, FramebufferFormatID p_format_check = INVALID_ID) = 0;
 
 	virtual FramebufferFormatID framebuffer_get_format(RID p_framebuffer) = 0;
 
@@ -618,8 +620,12 @@ public:
 		UNIFORM_TYPE_MAX
 	};
 
+	enum StorageBufferUsage {
+		STORAGE_BUFFER_USAGE_DISPATCH_INDIRECT = 1
+	};
+
 	virtual RID uniform_buffer_create(uint32_t p_size_bytes, const Vector<uint8_t> &p_data = Vector<uint8_t>()) = 0;
-	virtual RID storage_buffer_create(uint32_t p_size, const Vector<uint8_t> &p_data = Vector<uint8_t>()) = 0;
+	virtual RID storage_buffer_create(uint32_t p_size, const Vector<uint8_t> &p_data = Vector<uint8_t>(), uint32_t p_usage = 0) = 0;
 	virtual RID texture_buffer_create(uint32_t p_size_elements, DataFormat p_format, const Vector<uint8_t> &p_data = Vector<uint8_t>()) = 0;
 
 	struct Uniform {
@@ -940,8 +946,8 @@ public:
 	typedef int64_t DrawListID;
 
 	virtual DrawListID draw_list_begin_for_screen(DisplayServer::WindowID p_screen = 0, const Color &p_clear_color = Color()) = 0;
-	virtual DrawListID draw_list_begin(RID p_framebuffer, InitialAction p_initial_color_action, FinalAction p_final_color_action, InitialAction p_initial_depth_action, FinalAction p_final_depth_action, const Vector<Color> &p_clear_color_values = Vector<Color>(), float p_clear_depth = 1.0, uint32_t p_clear_stencil = 0, const Rect2 &p_region = Rect2()) = 0;
-	virtual Error draw_list_begin_split(RID p_framebuffer, uint32_t p_splits, DrawListID *r_split_ids, InitialAction p_initial_color_action, FinalAction p_final_color_action, InitialAction p_initial_depth_action, FinalAction p_final_depth_action, const Vector<Color> &p_clear_color_values = Vector<Color>(), float p_clear_depth = 1.0, uint32_t p_clear_stencil = 0, const Rect2 &p_region = Rect2()) = 0;
+	virtual DrawListID draw_list_begin(RID p_framebuffer, InitialAction p_initial_color_action, FinalAction p_final_color_action, InitialAction p_initial_depth_action, FinalAction p_final_depth_action, const Vector<Color> &p_clear_color_values = Vector<Color>(), float p_clear_depth = 1.0, uint32_t p_clear_stencil = 0, const Rect2 &p_region = Rect2(), const Vector<RID> &p_storage_textures = Vector<RID>()) = 0;
+	virtual Error draw_list_begin_split(RID p_framebuffer, uint32_t p_splits, DrawListID *r_split_ids, InitialAction p_initial_color_action, FinalAction p_final_color_action, InitialAction p_initial_depth_action, FinalAction p_final_depth_action, const Vector<Color> &p_clear_color_values = Vector<Color>(), float p_clear_depth = 1.0, uint32_t p_clear_stencil = 0, const Rect2 &p_region = Rect2(), const Vector<RID> &p_storage_textures = Vector<RID>()) = 0;
 
 	virtual void draw_list_bind_render_pipeline(DrawListID p_list, RID p_render_pipeline) = 0;
 	virtual void draw_list_bind_uniform_set(DrawListID p_list, RID p_uniform_set, uint32_t p_index) = 0;
@@ -968,10 +974,14 @@ public:
 	virtual void compute_list_bind_uniform_set(ComputeListID p_list, RID p_uniform_set, uint32_t p_index) = 0;
 	virtual void compute_list_set_push_constant(ComputeListID p_list, const void *p_data, uint32_t p_data_size) = 0;
 	virtual void compute_list_dispatch(ComputeListID p_list, uint32_t p_x_groups, uint32_t p_y_groups, uint32_t p_z_groups) = 0;
+	virtual void compute_list_dispatch_threads(ComputeListID p_list, uint32_t p_x_threads, uint32_t p_y_threads, uint32_t p_z_threads, uint32_t p_x_local_group, uint32_t p_y_local_group, uint32_t p_z_local_group);
+	virtual void compute_list_dispatch_indirect(ComputeListID p_list, RID p_buffer, uint32_t p_offset) = 0;
 	virtual void compute_list_add_barrier(ComputeListID p_list) = 0;
 
 	virtual void compute_list_end() = 0;
 
+	virtual void full_barrier() = 0;
+
 	/***************/
 	/**** FREE! ****/
 	/***************/
@@ -1070,7 +1080,7 @@ protected:
 
 	RID _render_pipeline_create(RID p_shader, FramebufferFormatID p_framebuffer_format, VertexFormatID p_vertex_format, RenderPrimitive p_render_primitive, const Ref<RDPipelineRasterizationState> &p_rasterization_state, const Ref<RDPipelineMultisampleState> &p_multisample_state, const Ref<RDPipelineDepthStencilState> &p_depth_stencil_state, const Ref<RDPipelineColorBlendState> &p_blend_state, int p_dynamic_state_flags = 0);
 
-	Vector<int64_t> _draw_list_begin_split(RID p_framebuffer, uint32_t p_splits, InitialAction p_initial_color_action, FinalAction p_final_color_action, InitialAction p_initial_depth_action, FinalAction p_final_depth_action, const Vector<Color> &p_clear_color_values = Vector<Color>(), float p_clear_depth = 1.0, uint32_t p_clear_stencil = 0, const Rect2 &p_region = Rect2());
+	Vector<int64_t> _draw_list_begin_split(RID p_framebuffer, uint32_t p_splits, InitialAction p_initial_color_action, FinalAction p_final_color_action, InitialAction p_initial_depth_action, FinalAction p_final_depth_action, const Vector<Color> &p_clear_color_values = Vector<Color>(), float p_clear_depth = 1.0, uint32_t p_clear_stencil = 0, const Rect2 &p_region = Rect2(), const TypedArray<RID> &p_storage_textures = TypedArray<RID>());
 	void _draw_list_set_push_constant(DrawListID p_list, const Vector<uint8_t> &p_data, uint32_t p_data_size);
 	void _compute_list_set_push_constant(ComputeListID p_list, const Vector<uint8_t> &p_data, uint32_t p_data_size);
 };
@@ -1089,6 +1099,7 @@ VARIANT_ENUM_CAST(RenderingDevice::SamplerRepeatMode)
 VARIANT_ENUM_CAST(RenderingDevice::SamplerBorderColor)
 VARIANT_ENUM_CAST(RenderingDevice::VertexFrequency)
 VARIANT_ENUM_CAST(RenderingDevice::IndexBufferFormat)
+VARIANT_ENUM_CAST(RenderingDevice::StorageBufferUsage)
 VARIANT_ENUM_CAST(RenderingDevice::UniformType)
 VARIANT_ENUM_CAST(RenderingDevice::RenderPrimitive)
 VARIANT_ENUM_CAST(RenderingDevice::PolygonCullMode)