Use fill() to fill an entire image instead of setting pixels individually.

editor/plugins/curve_editor_plugin.cpp

@@ -803,11 +803,8 @@ Ref<Texture2D> CurvePreviewGenerator::generate(const Ref<Resource> &p_from, cons
 	im.create(thumbnail_size, thumbnail_size / 2, false, Image::FORMAT_RGBA8);
 
 	Color bg_color(0.1, 0.1, 0.1, 1.0);
-	for (int i = 0; i < thumbnail_size; i++) {
-		for (int j = 0; j < thumbnail_size / 2; j++) {
-			im.set_pixel(i, j, bg_color);
-		}
-	}
+
+	im.fill(bg_color);
 
 	Color line_color(0.8, 0.8, 0.8, 1.0);
 	float range_y = curve.get_max_value() - curve.get_min_value();

editor/plugins/editor_preview_plugins.cpp

@@ -514,11 +514,7 @@ Ref<Texture2D> EditorScriptPreviewPlugin::generate(const RES &p_from, const Size
 	}
 	bg_color.a = MAX(bg_color.a, 0.2); // some background
 
-	for (int i = 0; i < thumbnail_size; i++) {
-		for (int j = 0; j < thumbnail_size; j++) {
-			img->set_pixel(i, j, bg_color);
-		}
-	}
+	img->fill(bg_color);
 
 	const int x0 = thumbnail_size / 8;
 	const int y0 = thumbnail_size / 8;

modules/lightmapper_rd/lightmapper_rd.cpp

@@ -775,11 +775,7 @@ LightmapperRD::BakeError LightmapperRD::bake(BakeQuality p_quality, bool p_use_d
 			} else {
 				panorama_tex.instantiate();
 				panorama_tex->create(8, 8, false, Image::FORMAT_RGBAF);
-				for (int i = 0; i < 8; i++) {
-					for (int j = 0; j < 8; j++) {
-						panorama_tex->set_pixel(i, j, Color(0, 0, 0, 1));
-					}
-				}
+				panorama_tex->fill(Color(0, 0, 0, 1));
 			}
 
 			RD::TextureFormat tfp;

scene/3d/lightmap_gi.cpp

@@ -942,11 +942,7 @@ LightmapGI::BakeError LightmapGI::bake(Node *p_from_node, String p_image_data_pa
 				c.r *= environment_custom_energy;
 				c.g *= environment_custom_energy;
 				c.b *= environment_custom_energy;
-				for (int i = 0; i < 128; i++) {
-					for (int j = 0; j < 64; j++) {
-						environment_image->set_pixel(i, j, c);
-					}
-				}
+				environment_image->fill(c);
 
 			} break;
 		}

servers/rendering/renderer_rd/renderer_scene_render_rd.cpp

@@ -545,11 +545,7 @@ Ref<Image> RendererSceneRenderRD::environment_bake_panorama(RID p_env, bool p_ba
 		Ref<Image> panorama;
 		panorama.instantiate();
 		panorama->create(p_size.width, p_size.height, false, Image::FORMAT_RGBAF);
-		for (int x = 0; x < p_size.width; x++) {
-			for (int y = 0; y < p_size.height; y++) {
-				panorama->set_pixel(x, y, panorama_color);
-			}
-		}
+		panorama->fill(panorama_color);
 		return panorama;
 	}
 

servers/rendering/renderer_rd/renderer_storage_rd.cpp

@@ -971,12 +971,7 @@ void RendererStorageRD::texture_2d_placeholder_initialize(RID p_texture) {
 	Ref<Image> image;
 	image.instantiate();
 	image->create(4, 4, false, Image::FORMAT_RGBA8);
-
-	for (int i = 0; i < 4; i++) {
-		for (int j = 0; j < 4; j++) {
-			image->set_pixel(i, j, Color(1, 0, 1, 1));
-		}
-	}
+	image->fill(Color(1, 0, 1, 1));
 
 	texture_2d_initialize(p_texture, image);
 }
@@ -987,12 +982,7 @@ void RendererStorageRD::texture_2d_layered_placeholder_initialize(RID p_texture,
 	Ref<Image> image;
 	image.instantiate();
 	image->create(4, 4, false, Image::FORMAT_RGBA8);
-
-	for (int i = 0; i < 4; i++) {
-		for (int j = 0; j < 4; j++) {
-			image->set_pixel(i, j, Color(1, 0, 1, 1));
-		}
-	}
+	image->fill(Color(1, 0, 1, 1));
 
 	Vector<Ref<Image>> images;
 	if (p_layered_type == RS::TEXTURE_LAYERED_2D_ARRAY) {
@@ -1013,12 +1003,7 @@ void RendererStorageRD::texture_3d_placeholder_initialize(RID p_texture) {
 	Ref<Image> image;
 	image.instantiate();
 	image->create(4, 4, false, Image::FORMAT_RGBA8);
-
-	for (int i = 0; i < 4; i++) {
-		for (int j = 0; j < 4; j++) {
-			image->set_pixel(i, j, Color(1, 0, 1, 1));
-		}
-	}
+	image->fill(Color(1, 0, 1, 1));
 
 	Vector<Ref<Image>> images;
 	//cube