first examples

shaders/006_variables/variables.gdshader

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+shader_type spatial;
+
+/**
+ * This is a documentation comment.
+ * These lines will appear in the inspector when hovering over the shader parameters
+ * You can use [b]BBCode[/b] [i]formatting[/i] in the comment.
+ * The Offset From Ground shifts the model up and down.
+ */
+uniform float offset_from_ground = 0.5;
+
+/**
+ * This parameter influcenes the amount of waves
+ */
+uniform float waves = 8.0;
+uniform float speed = 2.0;
+uniform float wave_height = 0.5;
+
+void vertex() {
+	// Changing the waves parameter changes how warped the sphere is
+	VERTEX.y += offset_from_ground + sin(VERTEX.x * waves + TIME * speed) * wave_height;
+}
+
+void fragment() {
+	ALBEDO = vec3(0.1, 0.2, 0.6);
+}

shaders/006_variables/variables.tscn

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+[gd_scene load_steps=4 format=3 uid="uid://5clduk3kph4t"]
+
+[ext_resource type="Shader" path="res://shaders/006_variables/variables.gdshader" id="1_gh1k7"]
+
+[sub_resource type="ShaderMaterial" id="ShaderMaterial_u3tcf"]
+render_priority = 0
+shader = ExtResource("1_gh1k7")
+shader_parameter/offset_from_ground = 0.5
+shader_parameter/waves = 8.0
+shader_parameter/speed = 2.0
+shader_parameter/wave_height = 0.5
+
+[sub_resource type="SphereMesh" id="SphereMesh_sctja"]
+material = SubResource("ShaderMaterial_u3tcf")
+
+[node name="Variables" type="Node3D"]
+
+[node name="MeshInstance3D" type="MeshInstance3D" parent="."]
+mesh = SubResource("SphereMesh_sctja")