From b6afd61ef07efe65cc8eda721d9d49ad9dd090ac Mon Sep 17 00:00:00 2001
From: "sha..RD" <ShAdOwIsLoRd@gmail.com>
Date: Thu, 18 Apr 2013 03:03:55 +0000
Subject: [PATCH]  * Lighting shader now supports HW skinning

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@10554 75d07b2b-3a1a-0410-a2c5-0572b91ccdca
---
 .../Common/MatDefs/Light/Lighting.j3md        | 10 +++++++-
 .../Common/MatDefs/Light/Lighting.vert        | 25 +++++++++++++------
 2 files changed, 26 insertions(+), 9 deletions(-)

diff --git a/engine/src/core-data/Common/MatDefs/Light/Lighting.j3md b/engine/src/core-data/Common/MatDefs/Light/Lighting.j3md
index b4a8e6c53..8bf63223f 100644
--- a/engine/src/core-data/Common/MatDefs/Light/Lighting.j3md
+++ b/engine/src/core-data/Common/MatDefs/Light/Lighting.j3md
@@ -127,6 +127,10 @@ MaterialDef Phong Lighting {
 
         Float PCFEdge
         Float ShadowMapSize
+
+        // For hardware skinning
+        Int NumberOfBones
+        Matrix4Array BoneMatrices
     }
 
     Technique {
@@ -169,7 +173,9 @@ MaterialDef Phong Lighting {
             SEPARATE_TEXCOORD : SeparateTexCoord
 
             USE_REFLECTION : EnvMap
-            SPHERE_MAP : SphereMap            
+            SPHERE_MAP : SphereMap  
+
+            NUM_BONES : NumberOfBones
         }
     }
 
@@ -319,6 +325,8 @@ MaterialDef Phong Lighting {
             NEED_TEXCOORD1
             HAS_GLOWMAP : GlowMap
             HAS_GLOWCOLOR : GlowColor
+
+            NUM_BONES : NumberOfBones
         }
     }
 
diff --git a/engine/src/core-data/Common/MatDefs/Light/Lighting.vert b/engine/src/core-data/Common/MatDefs/Light/Lighting.vert
index 042cba9bf..f9a303631 100644
--- a/engine/src/core-data/Common/MatDefs/Light/Lighting.vert
+++ b/engine/src/core-data/Common/MatDefs/Light/Lighting.vert
@@ -1,6 +1,8 @@
 #define ATTENUATION
 //#define HQ_ATTENUATION
 
+#import "Common/ShaderLib/Skinning.glsllib"
+
 uniform mat4 g_WorldViewProjectionMatrix;
 uniform mat4 g_WorldViewMatrix;
 uniform mat3 g_NormalMatrix;
@@ -68,8 +70,8 @@ varying vec3 lightVec;
      * Output:
      * varying refVec
      */
-    void computeRef(){
-        vec3 worldPos = (g_WorldMatrix * vec4(inPosition,1.0)).xyz;
+    void computeRef(in vec4 modelSpacePos){
+        vec3 worldPos = (g_WorldMatrix * modelSpacePos).xyz;
 
         vec3 I = normalize( g_CameraPosition - worldPos  ).xyz;
         vec3 N = normalize( (g_WorldMatrix * vec4(inNormal, 0.0)).xyz );
@@ -131,15 +133,22 @@ vec2 computeLighting(in vec3 wvPos, in vec3 wvNorm, in vec3 wvViewDir, in vec4 w
 #endif
 
 void main(){
-   vec4 pos = vec4(inPosition, 1.0);
-   gl_Position = g_WorldViewProjectionMatrix * pos;
+   vec4 modelSpacePos = vec4(inPosition, 1.0);
+   vec3 modelSpaceNorm = inNormal;
+   vec3 modelSpaceTan  = inTangent.xyz;
+
+   #ifdef NUM_BONES
+        Skinning_Compute(modelSpacePos, modelSpaceNorm, modelSpaceTan);
+   #endif
+
+   gl_Position = g_WorldViewProjectionMatrix * modelSpacePos;
    texCoord = inTexCoord;
    #ifdef SEPARATE_TEXCOORD
       texCoord2 = inTexCoord2;
    #endif
 
-   vec3 wvPosition = (g_WorldViewMatrix * pos).xyz;
-   vec3 wvNormal  = normalize(g_NormalMatrix * inNormal);
+   vec3 wvPosition = (g_WorldViewMatrix * modelSpacePos).xyz;
+   vec3 wvNormal  = normalize(g_NormalMatrix * modelSpaceNorm);
    vec3 viewDir = normalize(-wvPosition);
   
        //vec4 lightColor = g_LightColor[gl_InstanceID];
@@ -152,7 +161,7 @@ void main(){
    vec4 lightColor = g_LightColor;
 
    #if defined(NORMALMAP) && !defined(VERTEX_LIGHTING)
-     vec3 wvTangent = normalize(g_NormalMatrix * inTangent.xyz);
+     vec3 wvTangent = normalize(g_NormalMatrix * modelSpaceTan);
      vec3 wvBinormal = cross(wvNormal, wvTangent);
 
      mat3 tbnMat = mat3(wvTangent, wvBinormal * -inTangent.w,wvNormal);
@@ -202,6 +211,6 @@ void main(){
     #endif
 
     #ifdef USE_REFLECTION
-        computeRef();
+        computeRef(modelSpacePos);
     #endif 
 }
\ No newline at end of file