From 2ded30739d6a0d2bc3bca7cb82da2aea0cdf2a25 Mon Sep 17 00:00:00 2001
From: "bre..ns" <brentowens@gmail.com>
Date: Sat, 18 Jun 2011 00:10:36 +0000
Subject: [PATCH] * bumped up terrain material texture support * updated the
 test case example

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@7655 75d07b2b-3a1a-0410-a2c5-0572b91ccdca
---
 .../MatDefs/Terrain/TerrainLighting.frag      | 171 ++++++++++++++++++
 .../MatDefs/Terrain/TerrainLighting.j3md      |  33 ++++
 .../Textures/Terrain/splat/alpha1.png         | Bin 0 -> 14499 bytes
 .../Textures/Terrain/splat/alpha2.png         | Bin 0 -> 8151 bytes
 .../jme3test/terrain/TerrainTestAdvanced.java |  26 ++-
 5 files changed, 225 insertions(+), 5 deletions(-)
 create mode 100644 engine/src/test-data/Textures/Terrain/splat/alpha1.png
 create mode 100644 engine/src/test-data/Textures/Terrain/splat/alpha2.png

diff --git a/engine/src/terrain/Common/MatDefs/Terrain/TerrainLighting.frag b/engine/src/terrain/Common/MatDefs/Terrain/TerrainLighting.frag
index ac91d07f1..dafb43257 100644
--- a/engine/src/terrain/Common/MatDefs/Terrain/TerrainLighting.frag
+++ b/engine/src/terrain/Common/MatDefs/Terrain/TerrainLighting.frag
@@ -26,6 +26,18 @@ varying vec4 vnLightDir;
 #ifdef DIFFUSEMAP_3
   uniform sampler2D m_DiffuseMap_3;
 #endif
+#ifdef DIFFUSEMAP_4
+  uniform sampler2D m_DiffuseMap_4;
+#endif
+#ifdef DIFFUSEMAP_5
+  uniform sampler2D m_DiffuseMap_5;
+#endif
+#ifdef DIFFUSEMAP_6
+  uniform sampler2D m_DiffuseMap_6;
+#endif
+#ifdef DIFFUSEMAP_7
+  uniform sampler2D m_DiffuseMap_7;
+#endif
 
 
 #ifdef DIFFUSEMAP_0_SCALE
@@ -40,6 +52,18 @@ varying vec4 vnLightDir;
 #ifdef DIFFUSEMAP_3_SCALE
   uniform float m_DiffuseMap_3_scale;
 #endif
+#ifdef DIFFUSEMAP_4_SCALE
+  uniform float m_DiffuseMap_4_scale;
+#endif
+#ifdef DIFFUSEMAP_5_SCALE
+  uniform float m_DiffuseMap_5_scale;
+#endif
+#ifdef DIFFUSEMAP_6_SCALE
+  uniform float m_DiffuseMap_6_scale;
+#endif
+#ifdef DIFFUSEMAP_7_SCALE
+  uniform float m_DiffuseMap_7_scale;
+#endif
 
 
 #ifdef ALPHAMAP
@@ -64,6 +88,19 @@ varying vec4 vnLightDir;
 #ifdef NORMALMAP_3
   uniform sampler2D m_NormalMap_3;
 #endif
+#ifdef NORMALMAP_4
+  uniform sampler2D m_NormalMap_4;
+#endif
+#ifdef NORMALMAP_5
+  uniform sampler2D m_NormalMap_5;
+#endif
+#ifdef NORMALMAP_6
+  uniform sampler2D m_NormalMap_6;
+#endif
+#ifdef NORMALMAP_7
+  uniform sampler2D m_NormalMap_7;
+#endif
+
 
 #ifdef TRI_PLANAR_MAPPING
   varying vec4 wVertex;
@@ -119,6 +156,11 @@ vec2 computeLighting(in vec3 wvPos, in vec3 wvNorm, in vec3 wvViewDir, in vec3 w
 
   vec4 calculateDiffuseBlend(in vec2 texCoord) {
     vec4 alphaBlend   = texture2D( m_AlphaMap, texCoord.xy );
+    
+    #ifdef ALPHAMAP_1
+      vec4 alphaBlend1   = texture2D( m_AlphaMap_1, texCoord.xy );
+    #endif
+
     vec4 diffuseColor = texture2D(m_DiffuseMap, texCoord * m_DiffuseMap_0_scale);
     diffuseColor *= alphaBlend.r;
     #ifdef DIFFUSEMAP_1
@@ -130,6 +172,24 @@ vec2 computeLighting(in vec3 wvPos, in vec3 wvNorm, in vec3 wvViewDir, in vec3 w
         #ifdef DIFFUSEMAP_3
           vec4 diffuseColor3 = texture2D(m_DiffuseMap_3, texCoord * m_DiffuseMap_3_scale);
           diffuseColor = mix( diffuseColor, diffuseColor3, alphaBlend.a );
+          #ifdef ALPHAMAP_1
+              #ifdef DIFFUSEMAP_4
+                vec4 diffuseColor4 = texture2D(m_DiffuseMap_4, texCoord * m_DiffuseMap_4_scale);
+                diffuseColor = mix( diffuseColor, diffuseColor4, alphaBlend1.r );
+                #ifdef DIFFUSEMAP_5
+                  vec4 diffuseColor5 = texture2D(m_DiffuseMap_5, texCoord * m_DiffuseMap_5_scale);
+                  diffuseColor = mix( diffuseColor, diffuseColor5, alphaBlend1.g );
+                  #ifdef DIFFUSEMAP_6
+                    vec4 diffuseColor6 = texture2D(m_DiffuseMap_6, texCoord * m_DiffuseMap_6_scale);
+                    diffuseColor = mix( diffuseColor, diffuseColor6, alphaBlend1.b );
+                    #ifdef DIFFUSEMAP_7
+                      vec4 diffuseColor7 = texture2D(m_DiffuseMap_7, texCoord * m_DiffuseMap_7_scale);
+                      diffuseColor = mix( diffuseColor, diffuseColor7, alphaBlend1.a );
+                    #endif
+                  #endif
+                #endif
+              #endif
+          #endif
         #endif
       #endif
     #endif
@@ -143,6 +203,10 @@ vec2 computeLighting(in vec3 wvPos, in vec3 wvNorm, in vec3 wvViewDir, in vec3 w
 
     vec4 alphaBlend = texture2D( m_AlphaMap, texCoord.xy );
 
+    #ifdef ALPHAMAP_1
+      vec4 alphaBlend1 = texture2D( m_AlphaMap_1, texCoord.xy );
+    #endif
+
     #ifdef NORMALMAP
       normalHeight = texture2D(m_NormalMap, texCoord * m_DiffuseMap_0_scale);
       n = (normalHeight.xyz * vec3(2.0) - vec3(1.0));
@@ -175,6 +239,40 @@ vec2 computeLighting(in vec3 wvPos, in vec3 wvNorm, in vec3 wvViewDir, in vec3 w
       normal += n * alphaBlend.a;
     #endif
 
+    #ifdef ALPHAMAP_1
+        #ifdef NORMALMAP_4
+          normalHeight = texture2D(m_NormalMap_4, texCoord * m_DiffuseMap_4_scale);
+          n = (normalHeight.xyz * vec3(2.0) - vec3(1.0));
+          n.z = sqrt(1.0 - (n.x * n.x) - (n.y * n.y));
+          n.y = -n.y;
+          normal += n * alphaBlend1.r;
+        #endif
+
+        #ifdef NORMALMAP_5
+          normalHeight = texture2D(m_NormalMap_5, texCoord * m_DiffuseMap_5_scale);
+          n = (normalHeight.xyz * vec3(2.0) - vec3(1.0));
+          n.z = sqrt(1.0 - (n.x * n.x) - (n.y * n.y));
+          n.y = -n.y;
+          normal += n * alphaBlend1.g;
+        #endif
+
+        #ifdef NORMALMAP_6
+          normalHeight = texture2D(m_NormalMap_6, texCoord * m_DiffuseMap_6_scale);
+          n = (normalHeight.xyz * vec3(2.0) - vec3(1.0));
+          n.z = sqrt(1.0 - (n.x * n.x) - (n.y * n.y));
+          n.y = -n.y;
+          normal += n * alphaBlend1.b;
+        #endif
+
+        #ifdef NORMALMAP_7
+          normalHeight = texture2D(m_NormalMap_7, texCoord * m_DiffuseMap_67_scale);
+          n = (normalHeight.xyz * vec3(2.0) - vec3(1.0));
+          n.z = sqrt(1.0 - (n.x * n.x) - (n.y * n.y));
+          n.y = -n.y;
+          normal += n * alphaBlend1.a;
+        #endif
+    #endif
+
     return normalize(normal);
   }
 
@@ -215,8 +313,29 @@ vec2 computeLighting(in vec3 wvPos, in vec3 wvNorm, in vec3 wvViewDir, in vec3 w
           // blend the results of the 3 planar projections.
           vec4 tex3 = getTriPlanarBlend(coords, blending, m_DiffuseMap_3, m_DiffuseMap_3_scale);
         #endif
+        #ifdef DIFFUSEMAP_4
+          // blend the results of the 3 planar projections.
+          vec4 tex4 = getTriPlanarBlend(coords, blending, m_DiffuseMap_4, m_DiffuseMap_4_scale);
+        #endif
+        #ifdef DIFFUSEMAP_5
+          // blend the results of the 3 planar projections.
+          vec4 tex5 = getTriPlanarBlend(coords, blending, m_DiffuseMap_5, m_DiffuseMap_5_scale);
+        #endif
+        #ifdef DIFFUSEMAP_6
+          // blend the results of the 3 planar projections.
+          vec4 tex6 = getTriPlanarBlend(coords, blending, m_DiffuseMap_6, m_DiffuseMap_6_scale);
+        #endif
+        #ifdef DIFFUSEMAP_7
+          // blend the results of the 3 planar projections.
+          vec4 tex7 = getTriPlanarBlend(coords, blending, m_DiffuseMap_7, m_DiffuseMap_7_scale);
+        #endif
 
         vec4 alphaBlend   = texture2D( m_AlphaMap, texCoord.xy );
+
+        #ifdef ALPHAMAP_1
+          vec4 alphaBlend1   = texture2D( m_AlphaMap_1, texCoord.xy );
+        #endif
+
         vec4 diffuseColor = tex0 * alphaBlend.r;
         #ifdef DIFFUSEMAP_1
           diffuseColor = mix( diffuseColor, tex1, alphaBlend.g );
@@ -224,6 +343,20 @@ vec2 computeLighting(in vec3 wvPos, in vec3 wvNorm, in vec3 wvViewDir, in vec3 w
             diffuseColor = mix( diffuseColor, tex2, alphaBlend.b );
             #ifdef DIFFUSEMAP_3
               diffuseColor = mix( diffuseColor, tex3, alphaBlend.a );
+              #ifdef ALPHAMAP_1
+                  #ifdef DIFFUSEMAP_4
+                    diffuseColor = mix( diffuseColor, tex4, alphaBlend1.r );
+                    #ifdef DIFFUSEMAP_5
+                      diffuseColor = mix( diffuseColor, tex5, alphaBlend1.g );
+                      #ifdef DIFFUSEMAP_6
+                        diffuseColor = mix( diffuseColor, tex6, alphaBlend1.b );
+                        #ifdef DIFFUSEMAP_7
+                          diffuseColor = mix( diffuseColor, tex7, alphaBlend1.a );
+                        #endif
+                      #endif
+                    #endif
+                  #endif
+              #endif
             #endif
           #endif
         #endif
@@ -243,6 +376,10 @@ vec2 computeLighting(in vec3 wvPos, in vec3 wvNorm, in vec3 wvViewDir, in vec3 w
       vec4 coords = wVert;
       vec4 alphaBlend = texture2D( m_AlphaMap, texCoord.xy );
 
+    #ifdef ALPHAMAP_1
+      vec4 alphaBlend1 = texture2D( m_AlphaMap_1, texCoord.xy );
+    #endif
+
       vec3 normal = vec3(0,0,1);
       vec3 n = vec3(0,0,0);
       vec4 normalHeight = vec4(0,0,0,0);
@@ -279,6 +416,40 @@ vec2 computeLighting(in vec3 wvPos, in vec3 wvNorm, in vec3 wvViewDir, in vec3 w
           normal += n * alphaBlend.a;
       #endif
 
+      #ifdef ALPHAMAP_1
+          #ifdef NORMALMAP_4
+              normalHeight = getTriPlanarBlend(coords, blending, m_NormalMap_4, m_DiffuseMap_4_scale);
+              n = (normalHeight.xyz * vec3(2.0) - vec3(1.0));
+              n.z = sqrt(1.0 - (n.x * n.x) - (n.y * n.y));
+              n.y = -n.y;
+              normal += n * alphaBlend1.r;
+          #endif
+
+          #ifdef NORMALMAP_5
+              normalHeight = getTriPlanarBlend(coords, blending, m_NormalMap_5, m_DiffuseMap_5_scale);
+              n = (normalHeight.xyz * vec3(2.0) - vec3(1.0));
+              n.z = sqrt(1.0 - (n.x * n.x) - (n.y * n.y));
+              n.y = -n.y;
+              normal += n * alphaBlend1.g;
+          #endif
+
+          #ifdef NORMALMAP_6
+              normalHeight = getTriPlanarBlend(coords, blending, m_NormalMap_6, m_DiffuseMap_6_scale);
+              n = (normalHeight.xyz * vec3(2.0) - vec3(1.0));
+              n.z = sqrt(1.0 - (n.x * n.x) - (n.y * n.y));
+              n.y = -n.y;
+              normal += n * alphaBlend1.b;
+          #endif
+
+          #ifdef NORMALMAP_7
+              normalHeight = getTriPlanarBlend(coords, blending, m_NormalMap_7, m_DiffuseMap_7_scale);
+              n = (normalHeight.xyz * vec3(2.0) - vec3(1.0));
+              n.z = sqrt(1.0 - (n.x * n.x) - (n.y * n.y));
+              n.y = -n.y;
+              normal += n * alphaBlend1.a;
+          #endif
+      #endif
+
       return normalize(normal);
     }
   #endif
diff --git a/engine/src/terrain/Common/MatDefs/Terrain/TerrainLighting.j3md b/engine/src/terrain/Common/MatDefs/Terrain/TerrainLighting.j3md
index 766e25b3d..5760da612 100644
--- a/engine/src/terrain/Common/MatDefs/Terrain/TerrainLighting.j3md
+++ b/engine/src/terrain/Common/MatDefs/Terrain/TerrainLighting.j3md
@@ -40,6 +40,27 @@ MaterialDef Terrain Lighting {
         Float DiffuseMap_3_scale
         Texture2D NormalMap_3
 
+        // Texture map #4
+        Texture2D DiffuseMap_4
+        Float DiffuseMap_4_scale
+        Texture2D NormalMap_4
+
+        // Texture map #5
+        Texture2D DiffuseMap_5
+        Float DiffuseMap_5_scale
+        Texture2D NormalMap_5
+
+        // Texture map #6
+        Texture2D DiffuseMap_6
+        Float DiffuseMap_6_scale
+        Texture2D NormalMap_6
+
+        // Texture map #7
+        Texture2D DiffuseMap_7
+        Float DiffuseMap_7_scale
+        Texture2D NormalMap_7
+
+
         // Specular/gloss map
         Texture2D SpecularMap
 
@@ -78,10 +99,18 @@ MaterialDef Terrain Lighting {
             DIFFUSEMAP_1 : DiffuseMap_1
             DIFFUSEMAP_2 : DiffuseMap_2
             DIFFUSEMAP_3 : DiffuseMap_3
+            DIFFUSEMAP_4 : DiffuseMap_4
+            DIFFUSEMAP_5 : DiffuseMap_5
+            DIFFUSEMAP_6 : DiffuseMap_6
+            DIFFUSEMAP_7 : DiffuseMap_7
             NORMALMAP : NormalMap
             NORMALMAP_1 : NormalMap_1
             NORMALMAP_2 : NormalMap_2
             NORMALMAP_3 : NormalMap_3
+            NORMALMAP_4 : NormalMap_4
+            NORMALMAP_5 : NormalMap_5
+            NORMALMAP_6 : NormalMap_6
+            NORMALMAP_7 : NormalMap_7
             SPECULARMAP : SpecularMap
             ALPHAMAP : AlphaMap
             ALPHAMAP_1 : AlphaMap_1
@@ -90,6 +119,10 @@ MaterialDef Terrain Lighting {
             DIFFUSEMAP_1_SCALE : DiffuseMap_1_scale
             DIFFUSEMAP_2_SCALE : DiffuseMap_2_scale
             DIFFUSEMAP_3_SCALE : DiffuseMap_3_scale
+            DIFFUSEMAP_4_SCALE : DiffuseMap_4_scale
+            DIFFUSEMAP_5_SCALE : DiffuseMap_5_scale
+            DIFFUSEMAP_6_SCALE : DiffuseMap_6_scale
+            DIFFUSEMAP_7_SCALE : DiffuseMap_7_scale
         }
     }
 
diff --git a/engine/src/test-data/Textures/Terrain/splat/alpha1.png b/engine/src/test-data/Textures/Terrain/splat/alpha1.png
new file mode 100644
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diff --git a/engine/src/test/jme3test/terrain/TerrainTestAdvanced.java b/engine/src/test/jme3test/terrain/TerrainTestAdvanced.java
index 2f60e7f7e..6ad3b9433 100644
--- a/engine/src/test/jme3test/terrain/TerrainTestAdvanced.java
+++ b/engine/src/test/jme3test/terrain/TerrainTestAdvanced.java
@@ -47,12 +47,10 @@ import com.jme3.math.Vector3f;
 import com.jme3.renderer.Camera;
 import com.jme3.scene.Geometry;
 import com.jme3.scene.Spatial;
-import com.jme3.scene.shape.Box;
 import com.jme3.terrain.geomipmap.TerrainLodControl;
 import com.jme3.terrain.heightmap.AbstractHeightMap;
 import com.jme3.terrain.heightmap.ImageBasedHeightMap;
 import com.jme3.terrain.geomipmap.TerrainQuad;
-import com.jme3.terrain.geomipmap.lodcalc.LodPerspectiveCalculatorFactory;
 import com.jme3.texture.Texture;
 import com.jme3.texture.Texture.WrapMode;
 import com.jme3.util.SkyFactory;
@@ -60,7 +58,7 @@ import java.util.ArrayList;
 import java.util.List;
 
 /**
- * 
+ * Uses the terrain's lighting texture with normal maps and lights.
  *
  * @author bowens
  */
@@ -104,18 +102,19 @@ public class TerrainTestAdvanced extends SimpleApplication {
         matTerrain.setBoolean("WardIso", true);
 
         // ALPHA map (for splat textures)
-        matTerrain.setTexture("AlphaMap", assetManager.loadTexture("Textures/Terrain/splat/alphamap.png"));
+        matTerrain.setTexture("AlphaMap", assetManager.loadTexture("Textures/Terrain/splat/alpha1.png"));
+        matTerrain.setTexture("AlphaMap_1", assetManager.loadTexture("Textures/Terrain/splat/alpha2.png"));
 
         // HEIGHTMAP image (for the terrain heightmap)
         Texture heightMapImage = assetManager.loadTexture("Textures/Terrain/splat/mountains512.png");
 
+
         // GRASS texture
         Texture grass = assetManager.loadTexture("Textures/Terrain/splat/grass.jpg");
         grass.setWrap(WrapMode.Repeat);
         matTerrain.setTexture("DiffuseMap", grass);
         matTerrain.setFloat("DiffuseMap_0_scale", grassScale);
 
-
         // DIRT texture
         Texture dirt = assetManager.loadTexture("Textures/Terrain/splat/dirt.jpg");
         dirt.setWrap(WrapMode.Repeat);
@@ -128,6 +127,18 @@ public class TerrainTestAdvanced extends SimpleApplication {
         matTerrain.setTexture("DiffuseMap_2", rock);
         matTerrain.setFloat("DiffuseMap_2_scale", rockScale);
 
+        // BRICK texture
+        Texture brick = assetManager.loadTexture("Textures/Terrain/BrickWall/BrickWall.jpg");
+        brick.setWrap(WrapMode.Repeat);
+        matTerrain.setTexture("DiffuseMap_3", brick);
+        matTerrain.setFloat("DiffuseMap_3_scale", rockScale);
+
+        // RIVER ROCK texture
+        Texture riverRock = assetManager.loadTexture("Textures/Terrain/Pond/Pond.png");
+        riverRock.setWrap(WrapMode.Repeat);
+        matTerrain.setTexture("DiffuseMap_4", riverRock);
+        matTerrain.setFloat("DiffuseMap_4_scale", rockScale);
+
 
         Texture normalMap0 = assetManager.loadTexture("Textures/Terrain/splat/grass_normal.jpg");
         normalMap0.setWrap(WrapMode.Repeat);
@@ -138,6 +149,7 @@ public class TerrainTestAdvanced extends SimpleApplication {
         matTerrain.setTexture("NormalMap", normalMap0);
         matTerrain.setTexture("NormalMap_1", normalMap2);
         matTerrain.setTexture("NormalMap_2", normalMap2);
+        matTerrain.setTexture("NormalMap_4", normalMap2);
 
         // WIREFRAME material
         matWire = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
@@ -230,11 +242,15 @@ public class TerrainTestAdvanced extends SimpleApplication {
                     matTerrain.setFloat("DiffuseMap_0_scale", 1f / (float) (512f / grassScale));
                     matTerrain.setFloat("DiffuseMap_1_scale", 1f / (float) (512f / dirtScale));
                     matTerrain.setFloat("DiffuseMap_2_scale", 1f / (float) (512f / rockScale));
+                    matTerrain.setFloat("DiffuseMap_3_scale", 1f / (float) (512f / rockScale));
+                    matTerrain.setFloat("DiffuseMap_4_scale", 1f / (float) (512f / rockScale));
                 } else {
                     matTerrain.setBoolean("useTriPlanarMapping", false);
                     matTerrain.setFloat("DiffuseMap_0_scale", grassScale);
                     matTerrain.setFloat("DiffuseMap_1_scale", dirtScale);
                     matTerrain.setFloat("DiffuseMap_2_scale", rockScale);
+                    matTerrain.setFloat("DiffuseMap_3_scale", rockScale);
+                    matTerrain.setFloat("DiffuseMap_4_scale", rockScale);
                 }
             }
         }