Zero initialize all pointer class and struct members

This prevents the pitfall of UB when checking if they have been
assigned something valid by comparing to nullptr.

12 files changed, 41 insertions, 41 deletions

diff --git a/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.h b/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.h
index 11016968ed..37366d3e14 100644
--- a/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.h
+++ b/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.h
@@ -332,7 +332,7 @@ class RenderForwardClustered : public RendererSceneRenderRD {
 		uint32_t instance_buffer_size[RENDER_LIST_MAX] = { 0, 0, 0 };
 		LocalVector<InstanceData> instance_data[RENDER_LIST_MAX];
 
-		LightmapCaptureData *lightmap_captures;
+		LightmapCaptureData *lightmap_captures = nullptr;
 		uint32_t max_lightmap_captures;
 		RID lightmap_capture_buffer;
 
diff --git a/servers/rendering/renderer_rd/forward_clustered/scene_shader_forward_clustered.h b/servers/rendering/renderer_rd/forward_clustered/scene_shader_forward_clustered.h
index c3039e2f7f..1b7709bedb 100644
--- a/servers/rendering/renderer_rd/forward_clustered/scene_shader_forward_clustered.h
+++ b/servers/rendering/renderer_rd/forward_clustered/scene_shader_forward_clustered.h
@@ -42,7 +42,7 @@ private:
 	static SceneShaderForwardClustered *singleton;
 
 public:
-	RendererStorageRD *storage;
+	RendererStorageRD *storage = nullptr;
 
 	enum ShaderVersion {
 		SHADER_VERSION_DEPTH_PASS,
@@ -199,7 +199,7 @@ public:
 	}
 
 	struct MaterialData : public RendererRD::MaterialData {
-		ShaderData *shader_data;
+		ShaderData *shader_data = nullptr;
 		RID uniform_set;
 		uint64_t last_pass = 0;
 		uint32_t index = 0;
diff --git a/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.h b/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.h
index 6162ca55af..0ddfe89eea 100644
--- a/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.h
+++ b/servers/rendering/renderer_rd/forward_mobile/render_forward_mobile.h
@@ -328,7 +328,7 @@ protected:
 		uint32_t max_lightmaps;
 		RID lightmap_buffer;
 
-		LightmapCaptureData *lightmap_captures;
+		LightmapCaptureData *lightmap_captures = nullptr;
 		uint32_t max_lightmap_captures;
 		RID lightmap_capture_buffer;
 
diff --git a/servers/rendering/renderer_rd/forward_mobile/scene_shader_forward_mobile.h b/servers/rendering/renderer_rd/forward_mobile/scene_shader_forward_mobile.h
index 0f5017dba1..b89fe908d3 100644
--- a/servers/rendering/renderer_rd/forward_mobile/scene_shader_forward_mobile.h
+++ b/servers/rendering/renderer_rd/forward_mobile/scene_shader_forward_mobile.h
@@ -40,7 +40,7 @@ namespace RendererSceneRenderImplementation {
 class SceneShaderForwardMobile {
 private:
 	static SceneShaderForwardMobile *singleton;
-	RendererStorageRD *storage;
+	RendererStorageRD *storage = nullptr;
 
 public:
 	enum ShaderVersion {
@@ -163,7 +163,7 @@ public:
 	}
 
 	struct MaterialData : public RendererRD::MaterialData {
-		ShaderData *shader_data;
+		ShaderData *shader_data = nullptr;
 		RID uniform_set;
 		uint64_t last_pass = 0;
 		uint32_t index = 0;
diff --git a/servers/rendering/renderer_rd/pipeline_cache_rd.h b/servers/rendering/renderer_rd/pipeline_cache_rd.h
index 8d82480b38..1e80381d88 100644
--- a/servers/rendering/renderer_rd/pipeline_cache_rd.h
+++ b/servers/rendering/renderer_rd/pipeline_cache_rd.h
@@ -57,7 +57,7 @@ class PipelineCacheRD {
 		RID pipeline;
 	};
 
-	Version *versions;
+	Version *versions = nullptr;
 	uint32_t version_count;
 
 	RID _generate_version(RD::VertexFormatID p_vertex_format_id, RD::FramebufferFormatID p_framebuffer_format_id, bool p_wireframe, uint32_t p_render_pass, uint32_t p_bool_specializations = 0);
diff --git a/servers/rendering/renderer_rd/renderer_canvas_render_rd.h b/servers/rendering/renderer_rd/renderer_canvas_render_rd.h
index b33ee3fbfe..6448e1a664 100644
--- a/servers/rendering/renderer_rd/renderer_canvas_render_rd.h
+++ b/servers/rendering/renderer_rd/renderer_canvas_render_rd.h
@@ -41,7 +41,7 @@
 #include "servers/rendering/shader_compiler.h"
 
 class RendererCanvasRenderRD : public RendererCanvasRender {
-	RendererStorageRD *storage;
+	RendererStorageRD *storage = nullptr;
 
 	enum {
 		BASE_UNIFORM_SET = 0,
@@ -200,7 +200,7 @@ class RendererCanvasRenderRD : public RendererCanvasRender {
 	}
 
 	struct CanvasMaterialData : public RendererRD::MaterialData {
-		CanvasShaderData *shader_data;
+		CanvasShaderData *shader_data = nullptr;
 		RID uniform_set;
 
 		virtual void set_render_priority(int p_priority) {}
@@ -361,7 +361,7 @@ class RendererCanvasRenderRD : public RendererCanvasRender {
 			uint32_t pad2;
 		};
 
-		LightUniform *light_uniforms;
+		LightUniform *light_uniforms = nullptr;
 
 		RID lights_uniform_buffer;
 		RID canvas_state_buffer;
diff --git a/servers/rendering/renderer_rd/renderer_compositor_rd.h b/servers/rendering/renderer_rd/renderer_compositor_rd.h
index f8bcd81fd7..542cff0159 100644
--- a/servers/rendering/renderer_rd/renderer_compositor_rd.h
+++ b/servers/rendering/renderer_rd/renderer_compositor_rd.h
@@ -48,15 +48,15 @@
 
 class RendererCompositorRD : public RendererCompositor {
 protected:
-	UniformSetCacheRD *uniform_set_cache;
-	RendererCanvasRenderRD *canvas;
+	UniformSetCacheRD *uniform_set_cache = nullptr;
+	RendererCanvasRenderRD *canvas = nullptr;
 	RendererRD::CanvasTextureStorage *canvas_texture_storage;
 	RendererRD::MaterialStorage *material_storage;
 	RendererRD::MeshStorage *mesh_storage;
 	RendererRD::TextureStorage *texture_storage;
 	RendererRD::DecalAtlasStorage *decal_atlas_storage;
-	RendererStorageRD *storage;
-	RendererSceneRenderRD *scene;
+	RendererStorageRD *storage = nullptr;
+	RendererSceneRenderRD *scene = nullptr;
 
 	enum BlitMode {
 		BLIT_MODE_NORMAL,
diff --git a/servers/rendering/renderer_rd/renderer_scene_gi_rd.h b/servers/rendering/renderer_rd/renderer_scene_gi_rd.h
index d51b1bf691..ed60bc4362 100644
--- a/servers/rendering/renderer_rd/renderer_scene_gi_rd.h
+++ b/servers/rendering/renderer_rd/renderer_scene_gi_rd.h
@@ -55,7 +55,7 @@ class RendererSceneRenderRD;
 
 class RendererSceneGIRD {
 private:
-	RendererStorageRD *storage;
+	RendererStorageRD *storage = nullptr;
 
 	/* VOXEL_GI INSTANCE */
 
@@ -331,8 +331,8 @@ public:
 
 	struct VoxelGIInstance {
 		// access to our containers
-		RendererStorageRD *storage;
-		RendererSceneGIRD *gi;
+		RendererStorageRD *storage = nullptr;
+		RendererSceneGIRD *gi = nullptr;
 
 		RID probe;
 		RID texture;
@@ -455,8 +455,8 @@ public:
 		};
 
 		// access to our containers
-		RendererStorageRD *storage;
-		RendererSceneGIRD *gi;
+		RendererStorageRD *storage = nullptr;
+		RendererSceneGIRD *gi = nullptr;
 
 		// used for rendering (voxelization)
 		RID render_albedo;
diff --git a/servers/rendering/renderer_rd/renderer_scene_render_rd.h b/servers/rendering/renderer_rd/renderer_scene_render_rd.h
index 77c0437e83..b2c8daffb1 100644
--- a/servers/rendering/renderer_rd/renderer_scene_render_rd.h
+++ b/servers/rendering/renderer_rd/renderer_scene_render_rd.h
@@ -92,7 +92,7 @@ class RendererSceneRenderRD : public RendererSceneRender {
 	friend RendererSceneGIRD;
 
 protected:
-	RendererStorageRD *storage;
+	RendererStorageRD *storage = nullptr;
 	double time;
 	double time_step = 0;
 
@@ -314,10 +314,10 @@ private:
 	float shadows_quality_radius = 1.0;
 	float directional_shadow_quality_radius = 1.0;
 
-	float *directional_penumbra_shadow_kernel;
-	float *directional_soft_shadow_kernel;
-	float *penumbra_shadow_kernel;
-	float *soft_shadow_kernel;
+	float *directional_penumbra_shadow_kernel = nullptr;
+	float *directional_soft_shadow_kernel = nullptr;
+	float *penumbra_shadow_kernel = nullptr;
+	float *soft_shadow_kernel = nullptr;
 	int directional_penumbra_shadow_samples = 0;
 	int directional_soft_shadow_samples = 0;
 	int penumbra_shadow_samples = 0;
@@ -705,27 +705,27 @@ private:
 		template <class T>
 		struct InstanceSort {
 			float depth;
-			T *instance;
+			T *instance = nullptr;
 			bool operator<(const InstanceSort &p_sort) const {
 				return depth < p_sort.depth;
 			}
 		};
 
-		ReflectionData *reflections;
+		ReflectionData *reflections = nullptr;
 		InstanceSort<ReflectionProbeInstance> *reflection_sort;
 		uint32_t max_reflections;
 		RID reflection_buffer;
 		uint32_t max_reflection_probes_per_instance;
 		uint32_t reflection_count = 0;
 
-		DecalData *decals;
+		DecalData *decals = nullptr;
 		InstanceSort<DecalInstance> *decal_sort;
 		uint32_t max_decals;
 		RID decal_buffer;
 		uint32_t decal_count;
 
-		LightData *omni_lights;
-		LightData *spot_lights;
+		LightData *omni_lights = nullptr;
+		LightData *spot_lights = nullptr;
 
 		InstanceSort<LightInstance> *omni_light_sort;
 		InstanceSort<LightInstance> *spot_light_sort;
@@ -735,7 +735,7 @@ private:
 		uint32_t omni_light_count = 0;
 		uint32_t spot_light_count = 0;
 
-		DirectionalLightData *directional_lights;
+		DirectionalLightData *directional_lights = nullptr;
 		uint32_t max_directional_lights;
 		RID directional_light_buffer;
 
@@ -938,7 +938,7 @@ private:
 	};
 
 	struct FogMaterialData : public RendererRD::MaterialData {
-		FogShaderData *shader_data;
+		FogShaderData *shader_data = nullptr;
 		RID uniform_set;
 		bool uniform_set_updated;
 
diff --git a/servers/rendering/renderer_rd/renderer_scene_sky_rd.h b/servers/rendering/renderer_rd/renderer_scene_sky_rd.h
index 7a3e545add..010e2178a9 100644
--- a/servers/rendering/renderer_rd/renderer_scene_sky_rd.h
+++ b/servers/rendering/renderer_rd/renderer_scene_sky_rd.h
@@ -63,7 +63,7 @@ public:
 	};
 
 private:
-	RendererStorageRD *storage;
+	RendererStorageRD *storage = nullptr;
 	RD::DataFormat texture_format = RD::DATA_FORMAT_R16G16B16A16_SFLOAT;
 
 	RID index_buffer;
@@ -162,8 +162,8 @@ public:
 
 		UBO ubo;
 
-		SkyDirectionalLightData *directional_lights;
-		SkyDirectionalLightData *last_frame_directional_lights;
+		SkyDirectionalLightData *directional_lights = nullptr;
+		SkyDirectionalLightData *last_frame_directional_lights = nullptr;
 		uint32_t max_directional_lights;
 		uint32_t last_frame_directional_light_count;
 		RID directional_light_buffer;
@@ -228,7 +228,7 @@ public:
 	} sky_shader;
 
 	struct SkyMaterialData : public RendererRD::MaterialData {
-		SkyShaderData *shader_data;
+		SkyShaderData *shader_data = nullptr;
 		RID uniform_set;
 		bool uniform_set_updated;
 
@@ -262,7 +262,7 @@ public:
 		Sky *dirty_list = nullptr;
 
 		//State to track when radiance cubemap needs updating
-		SkyMaterialData *prev_material;
+		SkyMaterialData *prev_material = nullptr;
 		Vector3 prev_position;
 		float prev_time;
 
diff --git a/servers/rendering/renderer_rd/storage_rd/material_storage.h b/servers/rendering/renderer_rd/storage_rd/material_storage.h
index 69b7b702b0..270d9f0982 100644
--- a/servers/rendering/renderer_rd/storage_rd/material_storage.h
+++ b/servers/rendering/renderer_rd/storage_rd/material_storage.h
@@ -73,7 +73,7 @@ typedef ShaderData *(*ShaderDataRequestFunction)();
 struct Material;
 
 struct Shader {
-	ShaderData *data;
+	ShaderData *data = nullptr;
 	String code;
 	ShaderType type;
 	Map<StringName, Map<int, RID>> default_texture_parameter;
@@ -177,9 +177,9 @@ struct GlobalVariables {
 	List<RID> materials_using_texture;
 
 	RID buffer;
-	Value *buffer_values;
-	ValueUsage *buffer_usage;
-	bool *buffer_dirty_regions;
+	Value *buffer_values = nullptr;
+	ValueUsage *buffer_usage = nullptr;
+	bool *buffer_dirty_regions = nullptr;
 	uint32_t buffer_dirty_region_count = 0;
 
 	uint32_t buffer_size;
diff --git a/servers/rendering/renderer_rd/storage_rd/mesh_storage.h b/servers/rendering/renderer_rd/storage_rd/mesh_storage.h
index 8806a2a358..e8da8ad563 100644
--- a/servers/rendering/renderer_rd/storage_rd/mesh_storage.h
+++ b/servers/rendering/renderer_rd/storage_rd/mesh_storage.h
@@ -149,7 +149,7 @@ struct Mesh {
 /* Mesh Instance */
 
 struct MeshInstance {
-	Mesh *mesh;
+	Mesh *mesh = nullptr;
 	RID skeleton;
 	struct Surface {
 		RID vertex_buffer;