grass curvature from file + ui

assets/Data/entity/foliage.json

@@ -12,8 +12,9 @@
                 "growthRate" : 0.001
             },
             "grassData": {
-                "baseColor": {"x": 0.05, "y": 0.2, "z": 0.01},
+                "baseColor": {"x": 0.25, "y": 0.6, "z": 0.43},
-                "tipColor": {"x": 0.25, "y": 0.45, "z": 0}
+                "tipColor": {"x": 0.17, "y": 0.71, "z": 0.12},
+                "maxTipCurve" : 0.27
             },
             "graphicsTemplate": {
                 "model": {

src/main/java/electrosphere/client/terrain/foliage/FoliageModel.java

@@ -218,6 +218,7 @@ public class FoliageModel {
                                 scale, placementRandomizer,
                                 x, y, z,
                                 data.getType(currVoxelPos.x,currVoxelPos.y,currVoxelPos.z),
+                                foliageType,
                                 floatBufferView, data
                             );
                             drawCount = drawCount + numGenerated;
@@ -285,10 +286,13 @@ public class FoliageModel {
         int scale, Random placementRandomizer,
         int vX, int vY, int vZ,
         int targetVoxelType,
+        FoliageType foliageType,
         FloatBuffer floatBufferView, ChunkData chunkData
     ){
         int rVal = 0;
 
+        float maxTipCurve = foliageType.getGrassData().getMaxTipCurve();
+
         //construct simple grid to place foliage on
         // Vector3d sample_00 = Globals.clientSceneWrapper.getCollisionEngine().rayCastPosition(new Vector3d(realPos).add(-SAMPLE_OFFSET,SAMPLE_START_HEIGHT,-SAMPLE_OFFSET), new Vector3d(0,-1,0), RAY_LENGTH);
         // Vector3d sample_01 = Globals.clientSceneWrapper.getCollisionEngine().rayCastPosition(new Vector3d(realPos).add(-SAMPLE_OFFSET,SAMPLE_START_HEIGHT,             0), new Vector3d(0,-1,0), RAY_LENGTH);
@@ -410,7 +414,7 @@ public class FoliageModel {
                         //convert y to relative to chunk
                         offsetY = offsetY - realPos.y;
                         double rotVar = placementRandomizer.nextDouble() * Math.PI * 2;
-                        double rotVar2 = placementRandomizer.nextDouble();
+                        double rotVar2 = placementRandomizer.nextDouble() * maxTipCurve;
                         if(floatBufferView.limit() >= floatBufferView.position() + SINGLE_FOLIAGE_DATA_SIZE_BYTES / 4){
                             floatBufferView.put((float)relativePositionOnGridX + vX);
                             floatBufferView.put((float)offsetY + vY);

src/main/java/electrosphere/client/ui/menu/debug/entity/ImGuiEntityFoliageTab.java

@@ -25,6 +25,11 @@ public class ImGuiEntityFoliageTab {
      */
     static float[] grassColorBase = new float[3];
 
+    /**
+     * Grass Max Tip Curve
+     */
+    static float[] grassMaxTipCurve = new float[1];
+
     /**
      * Client scene entity view
      */
@@ -57,6 +62,10 @@ public class ImGuiEntityFoliageTab {
                         }
                     }
 
+                    if(ImGui.sliderFloat("Max Tip Curve", grassMaxTipCurve, 0, 1)){
+                        grassData.setMaxTipCurve(grassMaxTipCurve[0]);
+                    }
+
                     if(ImGui.button("Regenerate All Grass")){
                         Globals.foliageCellManager.evictAll();
                     }

src/main/java/electrosphere/game/data/foliage/type/GrassData.java

@@ -17,6 +17,11 @@ public class GrassData {
      */
     Vector3f tipColor;
 
+    /**
+     * The maximum curve allowed on the tip
+     */
+    float maxTipCurve;
+
     /**
      * Gets the base color of the grass
      * @return The base color
@@ -33,6 +38,21 @@ public class GrassData {
         return tipColor;
     }
 
+    /**
+     * Gets the maximum curve allowed on the tip
+     * @return The maximum curve allowed on the tip
+     */
+    public float getMaxTipCurve() {
+        return maxTipCurve;
+    }
+
+    /**
+     * Sets the maximum curve allowed on the tip
+     * @param maxTipCurve The maximum curve allowed on the tip
+     */
+    public void setMaxTipCurve(float maxTipCurve) {
+        this.maxTipCurve = maxTipCurve;
+    }
     
 
 }