feat: update some nodes a bit

Cargo.lock

@@ -66,6 +66,7 @@ checksum = "92ecc6618181def0457392ccd0ee51198e065e016d1d527a7ac1b6dc7c1f09d2"
 name = "leaf"
 version = "0.1.0"
 dependencies = [
+ "glam",
  "nodarium_macros",
  "nodarium_utils",
 ]

app/src/lib/graph-interface/graph/drop.events.ts

@@ -1,5 +1,5 @@
-import { toast } from '@nodarium/ui';
 import { GraphSchema, type NodeId } from '@nodarium/types';
+import { toast } from '@nodarium/ui';
 import type { GraphManager } from '../graph-manager.svelte';
 import type { GraphState } from '../graph-state.svelte';
 

app/src/lib/result-viewer/debug.ts

@@ -32,7 +32,7 @@ function writePath(scene: Group, data: Int32Array): Vector3[] {
 
   // Instanced spheres at points
   if (positions.length > 0) {
-    const sphereGeometry = new SphereGeometry(0.05, 8, 8); // keep low-poly
+    const sphereGeometry = new SphereGeometry(0.02, 8, 8); // keep low-poly
     const sphereMaterial = new MeshBasicMaterial({
       color: 0xff0000,
       depthTest: false

app/src/lib/runtime/runtime-executor.ts

@@ -134,6 +134,14 @@ function getValue(input: NodeInput, value?: unknown) {
     return encodeFloat(value as number);
   }
 
+  if (input.type === 'select' && typeof value !== 'number') {
+    const index = input.options?.indexOf(value as string);
+    if (index === undefined || index < 0) {
+      throw new Error(`Unknown value ${value} for select input ${input.label}`);
+    }
+    return index;
+  }
+
   if (Array.isArray(value)) {
     if (input.type === 'vec3' || input.type === 'shape') {
       return [
@@ -159,6 +167,8 @@ function getValue(input: NodeInput, value?: unknown) {
     return value;
   }
 
+  console.log({ input, value });
+
   throw new Error(`Unknown input type ${input.type}`);
 }
 
@@ -312,7 +322,6 @@ export class MemoryRuntimeExecutor implements RuntimeExecutor {
         continue;
       }
 
-
       a = performance.now();
 
       // Collect the inputs for the node

app/src/lib/runtime/worker-runtime-executor.ts

@@ -12,8 +12,8 @@ export class WorkerRuntimeExecutor implements RuntimeExecutor {
   getPerformanceData() {
     return this.worker.getPerformanceData();
   }
-  getDebugData() {
+  async getDebugData() {
-    return this.worker.getDebugData();
+    return await this.worker.getDebugData();
   }
   set useRuntimeCache(useCache: boolean) {
     this.worker.setUseRuntimeCache(useCache);

app/src/routes/+page.svelte

@@ -299,7 +299,11 @@
             bind:showHelp={appSettings.value.nodeInterface.showHelp}
             bind:settings={graphSettings}
             bind:settingTypes={graphSettingTypes}
-            onsave={async (g) => { pendingSave = true; await pm.saveGraph(g); pendingSave = false; }}
+            onsave={async (g) => {
+              pendingSave = true;
+              await pm.saveGraph(g);
+              pendingSave = false;
+            }}
             onresult={(result) => handleUpdate(result as Graph)}
           />
         {/key}

nodes/max/plantarium/gravity/src/input.json

@@ -13,19 +13,28 @@
       "max": 1,
       "value": 1
     },
-    "curviness": {
-      "type": "float",
-      "hidden": true,
-      "min": 0,
-      "max": 1,
-      "value": 0.5
-    },
     "depth": {
       "type": "integer",
       "min": 1,
       "max": 10,
       "hidden": true,
       "value": 1
+    },
+    "elasticity": {
+      "type": "float",
+      "description": "How rigid the stem is. 0 = rope (uniform droop), 1 = stiff rod (only the tip bends).",
+      "min": 0,
+      "max": 1,
+      "step": 0.05,
+      "value": 0.3
+    },
+    "mode": {
+      "type": "select",
+      "internal": true,
+      "label": "Mode",
+      "options": ["closed-form", "chain"],
+      "hidden": true,
+      "description": "closed-form lerps each segment toward gravity; chain is a forward-kinematic cantilever where each segment rotates by an angle that grows along the stem."
     }
   }
 }

nodes/max/plantarium/gravity/src/lib.rs

@@ -20,7 +20,11 @@ pub fn execute(input: &[i32]) -> Vec<i32> {
     let args = split_args(input);
 
     let plants = split_args(args[0]);
-    let depth = evaluate_int(args[3]);
+    let depth = evaluate_int(args[2]);
+    let elasticity = evaluate_float(args[3]).clamp(0.0, 1.0);
+    let mode = evaluate_int(args[4]); // 0 = closed-form, 1 = verlet
+    // 0 → sqrt (rope), 1 → ~4.5 (only the tip droops)
+    let bend_exponent = 0.5 + elasticity * 4.0;
 
     let mut max_depth = 0;
     for path_data in plants.iter() {
@@ -42,50 +46,124 @@ pub fn execute(input: &[i32]) -> Vec<i32> {
             let mut output_data = path_data.clone();
             let output = wrap_path_mut(&mut output_data);
 
-            let mut offset_vec = Vec3::ZERO;
+            if mode == 1 {
+                // Forward-kinematic cantilever chain. Each segment rotates around
+                // an axis perpendicular to (rest_dir, gravity) by an angle that
+                // grows with alpha along the stem. Positions are built from the
+                // anchored base outward, so segment lengths are preserved by
+                // construction (no iteration, no rescaling, no oscillation).
 
-            for i in 0..path.length - 1 {
+                let raw_strength = evaluate_float(args[1]);
-                let alpha = i as f32 / (path.length - 1) as f32;
+                let gravity_dir = Vec3::new(0.0, -1.0, 0.0);
-                let start_index = i * 4;
 
-                let start_point = Vec3::from_slice(&path.points[start_index..start_index + 3]);
+                // Tip bend angle in radians. PI/2 = horizontal tip at strength=1.
-                let end_point = Vec3::from_slice(&path.points[start_index + 4..start_index + 7]);
+                let max_angle = raw_strength * std::f32::consts::FRAC_PI_2;
 
-                let direction = end_point - start_point;
+                let original: Vec<Vec3> = (0..path.length)
+                    .map(|i| {
+                        let s = i * 4;
+                        Vec3::from_slice(&path.points[s..s + 3])
+                    })
+                    .collect();
 
-                let length = direction.length();
+                let seg_lens: Vec<f32> = (0..path.length - 1)
+                    .map(|i| (original[i + 1] - original[i]).length())
+                    .collect();
+                let rest_dirs: Vec<Vec3> = (0..path.length - 1)
+                    .map(|i| {
+                        let d = original[i + 1] - original[i];
+                        let l = d.length();
+                        if l > 0.0001 { d / l } else { Vec3::Y }
+                    })
+                    .collect();
 
-                let curviness = evaluate_float(args[2]);
+                let mut cur = vec![Vec3::ZERO; path.length];
-                let strength =
+                cur[0] = original[0];
-                    evaluate_float(args[1]) / curviness.max(0.0001) * evaluate_float(args[1]);
 
-                log!(
+                for i in 1..path.length {
-                    "length: {}, curviness: {}, strength: {}",
+                    let seg_idx = i - 1;
-                    length,
+                    let alpha = if path.length > 2 {
-                    curviness,
+                        seg_idx as f32 / (path.length - 2) as f32
-                    strength
+                    } else {
-                );
+                        1.0
+                    };
+                    let bend_angle = max_angle * alpha.powf(bend_exponent);
 
-                let down_point = Vec3::new(0.0, -length * strength, 0.0);
+                    let rest_dir = rest_dirs[seg_idx];
+                    let mut bend_axis = rest_dir.cross(gravity_dir);
+                    let axis_len = bend_axis.length();
+                    bend_axis = if axis_len > 0.0001 {
+                        bend_axis / axis_len
+                    } else {
+                        // rest_dir parallel to gravity — pick an arbitrary
+                        // perpendicular axis to break symmetry.
+                        Vec3::X
+                    };
 
-                let mut mid_point = lerp_vec3(direction, down_point, curviness * alpha.sqrt());
+                    // Rodrigues' rotation formula
+                    let (sin_a, cos_a) = bend_angle.sin_cos();
+                    let bent_dir = rest_dir * cos_a
+                        + bend_axis.cross(rest_dir) * sin_a
+                        + bend_axis * bend_axis.dot(rest_dir) * (1.0 - cos_a);
 
-                if mid_point[0] == 0.0 && mid_point[2] == 0.0 {
+                    cur[i] = cur[i - 1] + bent_dir * seg_lens[seg_idx];
-                    mid_point[0] += 0.0001;
-                    mid_point[2] += 0.0001;
                 }
 
-                // Correct midpoint length
+                for i in 0..path.length {
-                mid_point *= length / mid_point.length();
+                    let s = i * 4;
+                    output.points[s] = cur[i].x;
+                    output.points[s + 1] = cur[i].y;
+                    output.points[s + 2] = cur[i].z;
+                }
+            } else {
+                // Closed-form: per-segment lerp toward a downward vector
+                let mut offset_vec = Vec3::ZERO;
 
-                let final_end_point = start_point + mid_point;
+                for i in 0..path.length - 1 {
-                let offset_end_point = end_point + offset_vec;
+                    let alpha = i as f32 / (path.length - 1) as f32;
+                    let start_index = i * 4;
 
-                output.points[start_index + 4] = offset_end_point[0];
+                    let start_point = Vec3::from_slice(&path.points[start_index..start_index + 3]);
-                output.points[start_index + 5] = offset_end_point[1];
+                    let end_point =
-                output.points[start_index + 6] = offset_end_point[2];
+                        Vec3::from_slice(&path.points[start_index + 4..start_index + 7]);
 
-                offset_vec += final_end_point - end_point;
+                    let direction = end_point - start_point;
+
+                    let length = direction.length();
+
+                    let curviness = elasticity.max(0.0001);
+                    let strength_arg = evaluate_float(args[1]) * 10.0;
+                    let strength = strength_arg / curviness * strength_arg;
+
+                    log!(
+                        "length: {}, curviness: {}, strength: {}",
+                        length,
+                        curviness,
+                        strength
+                    );
+
+                    let down_point = Vec3::new(0.0, -length * strength, 0.0);
+
+                    let mut mid_point =
+                        lerp_vec3(direction, down_point, curviness * alpha.powf(bend_exponent));
+
+                    if mid_point[0] == 0.0 && mid_point[2] == 0.0 {
+                        mid_point[0] += 0.0001;
+                        mid_point[2] += 0.0001;
+                    }
+
+                    // Correct midpoint length
+                    mid_point *= length / mid_point.length();
+
+                    let final_end_point = start_point + mid_point;
+                    let offset_end_point = end_point + offset_vec;
+
+                    output.points[start_index + 4] = offset_end_point[0];
+                    output.points[start_index + 5] = offset_end_point[1];
+                    output.points[start_index + 6] = offset_end_point[2];
+
+                    offset_vec += final_end_point - end_point;
+                }
             }
             output_data
         })

nodes/max/plantarium/leaf/Cargo.toml

@@ -8,5 +8,6 @@ edition = "2018"
 crate-type = ["cdylib", "rlib"]
 
 [dependencies]
+glam = "0.30.10"
 nodarium_macros = { version = "0.1.0", path = "../../../../packages/macros" }
 nodarium_utils = { version = "0.1.0", path = "../../../../packages/utils" }

nodes/max/plantarium/leaf/src/input.json

@@ -19,6 +19,33 @@
       "max": 64,
       "value": 1,
       "hidden": true
+    },
+    "yCurve": {
+      "type": "float",
+      "description": "Curl the leaf upward along its length (radians). 0 = flat, ~1.57 = 90° tip curl.",
+      "min": -3.14,
+      "max": 3.14,
+      "step": 0.05,
+      "value": 0,
+      "hidden": true
+    },
+    "yTwist": {
+      "type": "float",
+      "description": "Twist around the leaf's spine. Combined with yCurve, produces a 3D spiral.",
+      "min": -6.28,
+      "max": 6.28,
+      "step": 0.05,
+      "value": 0,
+      "hidden": true
+    },
+    "xCurve": {
+      "type": "float",
+      "description": "Curl each cross-section into an arc, mirrored around the midrib. 0 = flat, ~1.57 = U-shape.",
+      "min": -3.14,
+      "max": 3.14,
+      "step": 0.05,
+      "value": 0,
+      "hidden": true
     }
   }
 }

nodes/max/plantarium/leaf/src/lib.rs

@@ -1,6 +1,7 @@
 use std::convert::TryInto;
 use std::f32::consts::PI;
 
+use glam::Vec3;
 use nodarium_macros::nodarium_definition_file;
 use nodarium_macros::nodarium_execute;
 use nodarium_utils::encode_float;
@@ -42,6 +43,9 @@ pub fn execute(input: &[i32]) -> Vec<i32> {
     let input_path = split_args(args[0])[0];
     let size = evaluate_float(args[1]);
     let width_resolution = evaluate_int(args[2]).max(3) as usize;
+    let y_curve = evaluate_float(args[3]);
+    let y_twist = evaluate_float(args[4]);
+    let x_curve = evaluate_float(args[5]);
     let path_length = (input_path.len() - 4) / 2;
 
     let slice_count = path_length;
@@ -93,27 +97,97 @@ pub fn execute(input: &[i32]) -> Vec<i32> {
 
     // Writing Positions
     let width = 50.0;
+    let leaf_length: f32 = 100.0;
     let mut positions = vec![[0.0f32; 3]; position_amount];
+
+    // Pre-compute a local frame (center, normal=local-Y, binormal=local-X) for
+    // each slice by walking the FK chain. At each step we bend around the
+    // current binormal (curls the leaf) and twist around the current tangent
+    // (rotates the bend plane → spiral).
+    let segs = (slice_count - 1).max(1) as f32;
+    let bend_per_step = y_curve / segs;
+    let twist_per_step = y_twist / segs;
+
+    let mut centers: Vec<Vec3> = Vec::with_capacity(slice_count);
+    let mut frame_n: Vec<Vec3> = Vec::with_capacity(slice_count);
+    let mut frame_b: Vec<Vec3> = Vec::with_capacity(slice_count);
+
+    let mut tangent = Vec3::new(0.0, 0.0, 1.0);
+    let mut normal = Vec3::new(0.0, 1.0, 0.0);
+    let mut binormal = Vec3::new(1.0, 0.0, 0.0);
+
+    let pz_first = decode_float(input_path[2 + 1]);
+    let mut center = Vec3::new(0.0, 0.0, pz_first - leaf_length);
+
     for i in 0..slice_count {
-        let ax = i as f32 / (slice_count -1) as f32;
+        centers.push(center);
+        frame_n.push(normal);
+        frame_b.push(binormal);
 
+        if i + 1 < slice_count {
+            let pz_curr = decode_float(input_path[2 + i * 2 + 1]);
+            let pz_next = decode_float(input_path[2 + (i + 1) * 2 + 1]);
+            let seg_len = pz_next - pz_curr;
+
+            center = center + tangent * seg_len;
+
+            // Bend around binormal — tilts tangent toward normal
+            let (sin_b, cos_b) = bend_per_step.sin_cos();
+            let new_t = tangent * cos_b + normal * sin_b;
+            let new_n = -tangent * sin_b + normal * cos_b;
+            tangent = new_t;
+            normal = new_n;
+
+            // Twist around tangent — rotates normal/binormal so the next bend
+            // happens in a rotated plane
+            let (sin_tw, cos_tw) = twist_per_step.sin_cos();
+            let new_n2 = normal * cos_tw + binormal * sin_tw;
+            let new_b = -normal * sin_tw + binormal * cos_tw;
+            normal = new_n2;
+            binormal = new_b;
+        }
+    }
+
+    for i in 0..slice_count {
+        let ax = i as f32 / segs;
         let px = decode_float(input_path[2 + i * 2 + 0]);
-        let pz = decode_float(input_path[2 + i * 2 + 1]);
+        let hw = width - px; // half-width at this slice
 
+        let c = centers[i];
+        let n = frame_n[i];
+        let b = frame_b[i];
 
         for j in 0..width_resolution {
             let alpha = j as f32 / (width_resolution - 1) as f32;
-            let x = 2.0 * (-px * (alpha - 0.5) + alpha * width);
+            // Signed cross-section parameter, -1 (left edge) → +1 (right edge)
-            let py = calculate_y(alpha-0.5)*5.0*(ax*PI).sin();
+            let t = 2.0 * alpha - 1.0;
-            let pz_val = pz - 100.0;
+            let py_local = calculate_y(alpha - 0.5) * 5.0 * (ax * PI).sin();
+
+            // X-curl: each cross-section traces a circular arc with curvature
+            // x_curve / hw. Because theta = x_curve * t is signed around the
+            // midrib, sin/cos give a mirrored arc (left and right edges curl
+            // the same direction).
+            let theta = x_curve * t;
+            let (sin_t, cos_t) = theta.sin_cos();
+            let (b_arc, n_arc) = if x_curve.abs() < 0.0001 {
+                (t * hw, 0.0)
+            } else {
+                let r = hw / x_curve;
+                (r * sin_t, r * (1.0 - cos_t))
+            };
+            // Cross-section bulge follows the rotated local frame
+            let b_total = b_arc - py_local * sin_t;
+            let n_total = n_arc + py_local * cos_t;
+
+            let world = c + b * b_total + n * n_total;
 
             let pos_idx = i * width_resolution + j;
-            positions[pos_idx] = [x - width, py, pz_val];
+            positions[pos_idx] = [world.x, world.y, world.z];
 
             let flat_idx = offset + pos_idx * 3;
-            out[flat_idx + 0] = encode_float((x - width) * size);
+            out[flat_idx + 0] = encode_float(world.x * size);
-            out[flat_idx + 1] = encode_float(py * size);
+            out[flat_idx + 1] = encode_float(world.y * size);
-            out[flat_idx + 2] = encode_float(pz_val * size);
+            out[flat_idx + 2] = encode_float(world.z * size);
         }
     }
 

nodes/max/plantarium/noise/src/input.json

@@ -15,9 +15,9 @@
     },
     "strength": {
       "type": "float",
-      "min": 0.1,
+      "min": 0,
-      "max": 10,
+      "max": 1,
-      "value": 2
+      "value": 0.5
     },
     "fixBottom": {
       "type": "float",
@@ -56,7 +56,8 @@
     "preserveLength": {
       "type": "boolean",
       "label": "Preserve length",
-      "value": true
+      "value": true,
+      "hidden": true
     }
   }
 }

nodes/max/plantarium/rotate/src/input.json

@@ -29,7 +29,7 @@
       "type": "boolean",
       "internal": true,
       "hidden": true,
-      "value": true,
+      "value": false,
       "description": "If multiple objects are connected, should we rotate them as one or spread them?"
     }
   }