Changeset 2940

Timestamp:

09/13/08 12:31:26 (16 years ago)

Author:

mattausch

Message:

 

Location:

GTP/trunk/App/Demos/Vis/FriendlyCulling/src

Files:

• Matrix4x4.cpp (modified) (2 diffs)
• ShadowMapping.cpp (modified) (9 diffs)

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/Matrix4x4.cpp

@@ -772 +772 @@
         nUp = Normalize(CrossProd(nRight, nDir));
 
-        Matrix4x4 m(nRight, nUp, -nDir);
+        Matrix4x4 m(nRight.x, nRight.y, nRight.z, 0,
+                        nUp.x,    nUp.y,    nUp.z,    0,
+                                -nDir.x,  -nDir.y,   -nDir.z, 0,
+                                0,        0,        0,        1);
+
+        Vector3 position = m * -pos;
+        
+        // note: left handed system => we go into positive z
+        m.x[3][0] = -DotProd(nRight, pos);
+        m.x[3][1] = -DotProd(nUp, pos);
+        m.x[3][2] =  DotProd(nDir, pos);
+
+        return m;
+}
+
+
+Matrix4x4 MyLookAt2(const Vector3 &pos, const Vector3 &dir, const Vector3& up) 
+{
+        const Vector3 nDir = Normalize(dir);
+        Vector3 nUp = Normalize(up);
+
+        Vector3 nRight = Normalize(CrossProd(nDir, nUp));
+        nUp = Normalize(CrossProd(nRight, nDir));
+
+        Matrix4x4 m(nRight, nUp, nDir);
 
         Vector3 position = m * -pos;
@@ -785 +809 @@
 
 
-Matrix4x4 MyLookAt2(const Vector3 &pos, const Vector3 &dir, const Vector3& up) 
-{
-        const Vector3 nDir = Normalize(dir);
-        Vector3 nUp = Normalize(up);
-
-        Vector3 nRight = Normalize(CrossProd(nDir, nUp));
-        nUp = Normalize(CrossProd(nRight, nDir));
-
-        Matrix4x4 m(nRight, nUp, nDir);
-
-        m.x[3][0] = -DotProd(nRight, pos);
-        m.x[3][1] = -DotProd(nUp, pos);
-        m.x[3][2] = -DotProd(nDir, pos);
-
-        return m;
-}
-}
+}

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/ShadowMapping.cpp

@@ -227 +227 @@
                                                                                  )
 {
-        return IdentityMatrix();
+        //return IdentityMatrix();
 
         AxisAlignedBox3 bounds_ls = GetExtremalPoints(lightSpace, body);
@@ -236 +236 @@
 
         //const float n = 1e2f;
-        const float n = 1e6f;
-        //const float n = ComputeN(bounds_ls);
+        //const float n = 1e6f;
+        const float n = ComputeN(bounds_ls);
 
         cout << "n: " << n << endl;
@@ -442 +442 @@
         //look(from position, into the direction of the projected direction, with unchanged up-vector)
         //const Matrix4x4 frame = MyLookAt2(Vector3::ZERO(), projViewDir, Vector3::UNIT_Y());
-        const Matrix4x4 frame = MyLookAt2(Vector3::ZERO(), -projViewDir, Vector3::UNIT_Y());
+        const Matrix4x4 frame = MyLookAt(Vector3::ZERO(), projViewDir, Vector3::UNIT_Y());
 
         cout << "frame\n " << frame << endl;
@@ -455 +455 @@
         Matrix4x4 transformToGL = ZeroMatrix();
         
-        transformToGL.x[0][0] =  1.0f;
-        transformToGL.x[1][2] =  1.0f; // z => y
+        transformToGL.x[0][0] =   1.0f;
+        transformToGL.x[1][2] =   1.0f; // z => y
         transformToGL.x[2][1] =  -1.0f; // y => -z
-        transformToGL.x[3][3] =  1.0f;
+        transformToGL.x[3][3] =   1.0f;
 
         lightProj *= transformToGL;
@@ -583 +583 @@
 
         Vector3 upVec = CalcUpVec(mCamera->GetDirection(), dir);
-        Matrix4x4 lightView = MyLookAt2(mShadowCam->GetPosition(), -dir, upVec);
+        Matrix4x4 lightView = MyLookAt(mShadowCam->GetPosition(), dir, upVec);
         //Matrix4x4 lightView = MyLookAt(mShadowCam->GetPosition(), -dir, mCamera->GetDirection());
 
@@ -591 +591 @@
         mShadowCam->mViewOrientation = lightView;
 
-        //cout << "here45:\n" << lightView << endl;
-
-        //mShadowCam->SetDirection(dir);
-        //mShadowCam->GetModelViewMatrix(lightView);
-        //cout << "here46:\n" << lightView << endl;
 
         mFbo->Bind();
@@ -701 +696 @@
 
         Vector3 upVec = CalcUpVec(mCamera->GetDirection(), dir);
-        Matrix4x4 lightView = MyLookAt2(mShadowCam->GetPosition(), -dir, upVec);
+        Matrix4x4 lightView = MyLookAt(mShadowCam->GetPosition(), dir, upVec);
         //Matrix4x4 lightView = MyLookAt(mShadowCam->GetPosition(), -dir, mCamera->GetDirection());
 
@@ -720 +715 @@
 
         Matrix4x4 lightProj;
-        
         CalcLightProjection(lightProj);
 
@@ -728 +722 @@
 
         mLightProjView = lightView * lightProj;
-
         dummyMat = mLightProjView;