Changeset 2892 for GTP/trunk/App/Demos/Vis/FriendlyCulling/src/ShadowMapping.cpp

Timestamp:

09/01/08 18:33:14 (16 years ago)

Author:

mattausch

Message:

 

File:

• GTP/trunk/App/Demos/Vis/FriendlyCulling/src/ShadowMapping.cpp (modified) (13 diffs)

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

@@ -93 +93 @@
 ShadowMapping::~ShadowMapping()
 {
-        if (sCgShadowProgram)
-                cgDestroyProgram(sCgShadowProgram);
-
+        //if (sCgShadowProgram) cgDestroyProgram(sCgShadowProgram);
         DEL_PTR(mFbo);
 }
@@ -126 +124 @@
         mLight = light;
 
-        const float xlen = Magnitude(mSceneBox.Diagonal() * 0.5f);
-        const float ylen = Magnitude(mSceneBox.Diagonal() * 0.5f);
+        const float xlen = Magnitude(mSceneBox.Diagonal());// * 0.5f);
+        const float ylen = Magnitude(mSceneBox.Diagonal());// * 0.5f);
         
         mShadowCam->SetDirection(light->GetDirection());
@@ -138 +136 @@
 
         mFbo->Bind();
-
+        
         glDrawBuffers(1, mrt);
 
@@ -150 +148 @@
         glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
 
-        glPolygonOffset(1.0f, 4000.0f);
-        //glEnable(GL_POLYGON_OFFSET_FILL);
+        glPolygonOffset(1.0f, 40.0f);
+        glEnable(GL_POLYGON_OFFSET_FILL);
 
         glShadeModel(GL_FLAT);
@@ -158 +156 @@
         glMatrixMode(GL_PROJECTION);
         glPushMatrix();
-
-        glOrtho(+xlen, -xlen, ylen, -ylen, 0.0f, Magnitude(mSceneBox.Diagonal())); 
+        glLoadIdentity();
+        
+        glOrtho(+xlen, -xlen, +ylen, -ylen, 0.0f, 100);//Magnitude(mSceneBox.Diagonal())); 
+        
 
         glMatrixMode(GL_MODELVIEW);
         glPushMatrix();
 
+        glLoadIdentity();
+
+
         mShadowCam->SetupCameraView();
-
-        mShadowCam->GetModelViewMatrix(mShadowMatrix);
+        mShadowCam->GetModelViewMatrix(mLightViewMatrix);
+
+        mShadowCam->GetProjectionMatrix(mLightProjectionMatrix);
+        //glGetFloatv(GL_MODELVIEW_MATRIX, (float *)mLightProjectionMatrix.x);
 
         traverser->RenderScene();
         
         glDisable(GL_POLYGON_OFFSET_FILL);
-
+        glMatrixMode(GL_MODELVIEW);
         glPopMatrix();
 
@@ -184 +189 @@
         ExportDepthBuffer(data, mSize);
 
-        delete [] data;*/
+        delete [] data;
+*/
+        PrintGLerror("shadow map");
 
         FrameBufferObject::Release();
@@ -270 +277 @@
                                                                 0.5f, 0.5f, 0.5f, 1.0f); //bias from [-1, 1] to [0, 1]
 
-        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+        /*glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
         // update the camera, so that the user can have a free look
@@ -280 +287 @@
         
         cam->SetupCameraView();
-
+*/
         // store the inverse of the resulting modelview matrix for the shadow computation
         glGetFloatv(GL_MODELVIEW_MATRIX, (float *)cam_inverse_modelview.x);
@@ -287 +294 @@
         // bind shadow map
         glBindTexture(GL_TEXTURE_2D_ARRAY_EXT, mFbo->GetDepthTex());
-
-        //glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_R_TO_TEXTURE);
-        //glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE, GL_NONE);
-
-        PrintGLerror("texture");
         
         // compute a matrix that transforms from camera eye space to light clip space
@@ -300 +302 @@
 
         glLoadMatrixf((float *)biasMatrix.x);
-        glMultMatrixf((float *)mShadowMatrix.x);
+        glMultMatrixf((float *)mLightViewMatrix.x);
         
         // multiply the light's (bias * crop * proj * modelview) by the inverse camera modelview
@@ -308 +310 @@
         RgbaColor white(1, 1, 1, 0);
         RgbaColor dark(0.2, 0.2, 0.2, 0);
+
+        glDisable(GL_LIGHTING);
+
+        /*glDisable(GL_LIGHT0);
+        glDisable(GL_LIGHT1);
 
         //Use dim light to represent shadowed areas
@@ -315 +322 @@
         //glLightfv(GL_LIGHT1, GL_SPECULAR, black);
         glEnable(GL_LIGHT1);
-        glEnable(GL_LIGHTING);
-
-        
+        glEnable(GL_LIGHTING);*/
+
+        PrintGLerror("firstpass");
+
         // finally, draw the scene 
         traverser->RenderScene();
 
-        
+
+        glEnable(GL_LIGHTING);
+
 
         //3rd pass
         //Draw with bright light
-        glLightfv(GL_LIGHT1, GL_DIFFUSE, (float *)&white.r);
-        glLightfv(GL_LIGHT1, GL_SPECULAR, (float *)&white.r);
-
-        Matrix4x4 textureMatrix;// = biasMatrix * mLightProjectionMatrix * mLightViewMatrix;
+        //glLightfv(GL_LIGHT1, GL_DIFFUSE, (float *)&white.r);
+        //glLightfv(GL_LIGHT1, GL_SPECULAR, (float *)&white.r);
+
+        Matrix4x4 textureMatrix = biasMatrix * mLightProjectionMatrix * mLightViewMatrix;
+
+        Matrix4x4 texMatT = Transpose(textureMatrix);
 
         //Set up texture coordinate generation.
         glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
-        //glTexGenfv(GL_S, GL_EYE_PLANE, textureMatrix.GetRow(0));
+        glTexGenfv(GL_S, GL_EYE_PLANE, texMatT.x[0]);
         glEnable(GL_TEXTURE_GEN_S);
 
         glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
-        //glTexGenfv(GL_T, GL_EYE_PLANE, textureMatrix.GetRow(1));
+        glTexGenfv(GL_T, GL_EYE_PLANE, texMatT.x[1]);
         glEnable(GL_TEXTURE_GEN_T);
 
         glTexGeni(GL_R, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
-        //glTexGenfv(GL_R, GL_EYE_PLANE, textureMatrix.GetRow(2));
+        glTexGenfv(GL_R, GL_EYE_PLANE, texMatT.x[2]);
         glEnable(GL_TEXTURE_GEN_R);
 
         glTexGeni(GL_Q, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
-        //glTexGenfv(GL_Q, GL_EYE_PLANE, textureMatrix.GetRow(3));
+        glTexGenfv(GL_Q, GL_EYE_PLANE, texMatT.x[3]);
         glEnable(GL_TEXTURE_GEN_Q);
 
@@ -363 +375 @@
         glAlphaFunc(GL_GEQUAL, 0.99f);
         glEnable(GL_ALPHA_TEST);
+
+        PrintGLerror("texture");
 
         traverser->RenderScene();