Changeset 2987

Timestamp:

10/01/08 17:39:41 (16 years ago)

Author:

mattausch

Message:

 

Location:

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

Files:

• DeferredRenderer.cpp (modified) (5 diffs)
• shaders/ssao.cg (modified) (4 diffs)

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

@@ -85 +85 @@
 static CGparameter sPositionsTexCombinedSsaoParam;
 
+static CGparameter sTLParam;
+static CGparameter sTRParam;
+static CGparameter sBRParam;
+static CGparameter sBLParam;
 
 ////////////
@@ -352 +356 @@
                 sOldTexParam = cgGetNamedParameter(sCgSsaoProgram, "oldTex");  
                 sSamplesParam = cgGetNamedParameter(sCgSsaoProgram, "samples");
+
+                sTLParam = cgGetNamedParameter(sCgSsaoProgram, "bl"); 
+                sTRParam = cgGetNamedParameter(sCgSsaoProgram, "br"); 
+                sBRParam = cgGetNamedParameter(sCgSsaoProgram, "tl"); 
+                sBLParam = cgGetNamedParameter(sCgSsaoProgram, "tr"); 
         }
         else
@@ -691 +700 @@
         ComputeViewVectors(tl, tr, bl, br);
 
+        cgGLSetParameter3f(sTLParam, tl.x, tl.y, tl.z);
+        cgGLSetParameter3f(sBLParam, bl.x, bl.y, bl.z);
+        cgGLSetParameter3f(sBRParam, br.x, br.y, br.z);
+        cgGLSetParameter3f(sTRParam, tr.x, tr.y, tr.z);
+
+
         glBegin(GL_QUADS);
 
@@ -750 +765 @@
 }
 
+
+Vector3 Interpol(float wx, float wy, Vector3 bl, Vector3 br, Vector3 tl, Vector3 tr)
+{
+        //float3 x1 = lerp(oldColor.w, logLumScaled, 0.1f);
+        Vector3 x1 = bl * (1.0f - wx) + br * wx;
+        Vector3 x2 = tl * (1.0f - wx) + tr * wx;
+
+        Vector3 v = x1 * (1.0f - wy) + x2 * wy;
+
+        return v;
+}
+
+
 void DeferredRenderer::ComputeViewVectors(Vector3 &tl, Vector3 &tr, Vector3 &bl, Vector3 &br)
 {
@@ -761 +789 @@
         tr = Normalize(ntr - ftr);
 
-        const float y_angle = 0.43633231299858239423092269212215;
-        const float x_angle = 0.58177641733144319230789692282954;
-
-        const Vector3 view = mCamera->GetBaseDirection();
-
-        Vector3 rotView1 = RotateZ(-view, x_angle);
-        Vector3 rotView = RotateX(rotView1, y_angle);
-
-        cout << "view: " << -view << endl;
-        Matrix4x4 mat;
-        
-        mCamera->GetViewOrientationMatrix(mat);
-        rotView = mat * rotView;
-
-        cout << "x: " << rotView1 << " y: " << rotView << " " << tr << endl;
-
-        cout << "x: " << Magnitude(rotView1) << " y: " << Magnitude(rotView) << endl;
-        cout << "here3: " << acos(DotProd(rotView1, -view)) << " " << acos(DotProd(rotView, rotView1)) << endl;
-}
-
+
+        Vector3 dummy = Normalize(Interpol(0, 0, bl, br, tl, tr));
+        Vector3 dummy2 = Normalize(Interpol(0.5f, 0.5f, bl, br, tl, tr));
+
+        cout << "here3: " << dummy2 << " " << -mCamera->GetDirection() << endl;
+}
 
 

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/shaders/ssao.cg

@@ -53 +53 @@
 
         return r;
+}
+
+float3 Interpol(float2 w, float3 bl, float3 br, float3 tl, float3 tr)
+{
+        //float3 x1 = lerp(oldColor.w, logLumScaled, 0.1f);
+        float3 x1 = bl * (1.0f - w.x) + br * w.x;
+        float3 x2 = tl * (1.0f - w.x) + tr * w.x;
+
+        float3 v = x1 * (1.0f - w.y) + x2 * w.y;
+
+        return v;
 }
 
@@ -70 +81 @@
                    uniform float3 br,
                    uniform float3 tl,
-                   uniform float3 tr
+                   uniform float3 tr,
+                   uniform float maxDepth
                    )
 {
@@ -105 +117 @@
                 float eyeSpaceDepth = tex2Dlod(colors, float4(texcoord, 0, SSAO_MIPMAP_LEVEL)).w;
 
-                float rotx = offsetTransformed.x * -x_angle;
-                float roty = offsetTransformed.y * -y_angle;
-
-                float3 rotView_x = RotateY(viewDir, x_angle);
-                float3 rotView = RotateX(rotView_x, y_angle);
-
-                float3 sample_position = eyePos - rotView * eyeSpaceDepth;
+                float newOffs = 0.5f + offsetTransformed * 0.5f;
+
+                float3 rotView = normalize(Interpol(newOffs, bl, br, tl, tr));
+                float3 sample_position = (eyePos - rotView * eyeSpaceDepth) / maxDepth;
                 //float3 sample_position = tex2Dlod(positions, float4(texcoord, 0, SSAO_MIPMAP_LEVEL)).xyz;
 
@@ -177 +186 @@
         float3 viewDir = normalize(IN.view);
 
-        /*const float eyeSpaceDepth = tex2D(colors, IN.texCoord.xy).w;
+/*      const float eyeSpaceDepth = tex2D(colors, IN.texCoord.xy).w;
 
         float3 sample_position = eyePos - viewDir * eyeSpaceDepth; 
 
-        OUT.illum_col.xyz = centerPosition.xyz - sample_position;
+        OUT.illum_col.xyz = centerPosition.xyz * maxDepth -  sample_position;
         OUT.illum_col.w = currentDepth;
-        return OUT;*/
-
+        return OUT;
+*/
         //const float2 ao = ssao(IN, positions, noiseTexture, samples, normal, centerPosition, w, viewDir, eyePos);
         const float2 ao = ssao(IN, colors, noiseTexture, samples, normal, centerPosition, w, viewDir, eyePos, positions,
-                uniform float3 bl,
-                uniform float3 br,
-                uniform float3 tl,
-                uniform float3 tr);
+                bl, br, tl, tr, maxDepth);