From 564f4d12d93813b5d680fc24d4f118c3886d96ed Mon Sep 17 00:00:00 2001
From: Normand Briere <nbriere@noware.ca>
Date: Tue, 20 Aug 2019 19:56:41 -0400
Subject: [PATCH] Parallax mapping!

---
 ObjEditor.java   |   12 ++++++
 CameraPane.java  |   48 +++++++++++++++++++----
 GroupEditor.java |    5 ++
 cMaterial.java   |   13 ++++--
 4 files changed, 65 insertions(+), 13 deletions(-)

diff --git a/CameraPane.java b/CameraPane.java
index 298bf09..e8611a1 100644
--- a/CameraPane.java
+++ b/CameraPane.java
@@ -1819,7 +1819,7 @@
 
         display.modelParams7[0] = 0;
         display.modelParams7[1] = 1000;
-        display.modelParams7[2] = 0;
+        display.modelParams7[2] = material.parallax;
         display.modelParams7[3] = 0;
 
         //display.modelParams6[0] = 100; // criss de bug de bump
@@ -12593,7 +12593,7 @@
                 "PARAM params4   = program.env[4];" + // anisoV, cameralight, selfshadow, shadow
                 "PARAM params5   = program.env[5];" + // texture, opacity, fakedepth, shadowbias
                 "PARAM params6   = program.env[6];" + // bump, noise, borderfade, fog punchthrough
-                "PARAM params7   = program.env[7];" + // noise power, opacity power
+                "PARAM params7   = program.env[7];" + // noise power, opacity power, parallax
                 "PARAM options0   = program.env[63];" + // fog density, intensity, elevation
                 "PARAM options1   = program.env[62];" + // fog rgb color
                 "PARAM options2   = program.env[61];" + // image intensity, subsurface, lightsheen
@@ -12838,7 +12838,7 @@
        "POW texSamp.a, texSamp.a, params6.w;" + // fog punch through shortcut
 // mar 2013 ???                "KIL alpha.a;" +
                 "MOV alpha, texSamp.aaaa;" + // y;" +
-         "KIL alpha.a;" +
+         "KIL alpha.a;" + // not sure with parallax mapping
                 /*
                 "MUL temp.xy, temp, two;" +
                 "TXB bump, temp, texture[0], 2D;" +
@@ -12924,11 +12924,6 @@
                 "SUB bump0, bump0, half;" +
                 "ADD bump, bump, bump0;" +
                 
-                "MOV temp.x, texSamp.a;" +
-                "LRP texSamp, params5.x, texSamp, one;" + // texture proportion
-                //"LRP texSamp0, params5.x, texSamp0, one;" +
-                "MOV texSamp.a, temp.x;" +
-
                 // double-sided
                 /**/
 (doublesided?"DP3 temp.z, normal, eye;" +
@@ -12958,6 +12953,41 @@
                 Normalize("U") +
                 
 // parallax mapping
+
+                "DP3 temp2.x, V, eye;" +
+                "DP3 temp2.y, U, eye;" +
+                "DP3 temp2.z, normal, eye;" +
+                "RCP temp2.z, temp2.z;" +
+                
+                "DP3 temp2.w, texSamp, texSamp;" + // Height
+                "RSQ temp2.w, temp2.w;" +
+                "RCP temp2.w, temp2.w;" +
+                
+                "SUB temp2.w, temp2.w, half;" +
+//                "SGE temp.x, temp2.w, eps.x;" +
+//                "MUL temp2.w, temp2.w, temp.x;" +
+                
+                //"MOV texSamp, U;" +
+                
+                "MUL temp2.z, temp2.z, temp2.w;" +
+                "MUL temp2.z, temp2.z, params7.z;" + // parallax
+                
+                "MUL temp2, temp2, temp2.z;" +
+                
+                "MOV temp, fragment.texcoord[0];" +
+                
+                "SUB temp, temp, temp2;" +
+                
+                "TEX texSamp, temp, texture[0], 2D;" +
+                "POW texSamp.a, texSamp.a, params6.w;" + // punch through
+                "MOV alpha, texSamp.aaaa;" +
+                
+// parallax mapping
+                
+                "MOV temp.x, texSamp.a;" +
+                "LRP texSamp, params5.x, texSamp, one;" + // texture proportion
+                //"LRP texSamp0, params5.x, texSamp0, one;" +
+                "MOV texSamp.a, temp.x;" +
 
 //"MOV temp, fragment.texcoord[0];" +
 //                
@@ -13739,7 +13769,7 @@
     /*static*/ float[] modelParams4 = new float[]{0, 0, 0, 0}; // anisoV, cameralight, selfshadow, shadow
     /*static*/ float[] modelParams5 = new float[]{0, 0, 0, 0}; // texture, opacity, fakedepth, shadowbias
     /*static*/ float[] modelParams6 = new float[]{0, 0, 0, 0}; // bump, noise, borderfade, fog punchthrough
-    /*static*/ float[] modelParams7 = new float[]{0, 0, 0, 0}; // noise power, opacity power
+    /*static*/ float[] modelParams7 = new float[]{0, 0, 0, 0}; // noise power, opacity power, parallax
     
     //Object3D.cVector2[] vector2buffer;
 
diff --git a/GroupEditor.java b/GroupEditor.java
index f678dca..0ac356b 100644
--- a/GroupEditor.java
+++ b/GroupEditor.java
@@ -936,6 +936,8 @@
         cGridBag currenttab;
         //boolean added; // patch for jar
                 
+        int totalcount = 0;
+        
         int tabcount = 0;
         int colcount = 0;
         int rowcount = 0;
@@ -974,6 +976,7 @@
             }
             
             AddTextureButton(path[0], path[1], path[2], ++texturecount, currenttab);
+            totalcount++;
             
             if (++colcount >= columns)
             {
@@ -999,6 +1002,8 @@
             container.add(resourcecontainer);
             
             Grafreed.ParseResources("textures", this);
+            
+            // 935. System.out.println("Total = " + totalcount);
         }
         
 	void SetupUI2(ObjEditor oe)
diff --git a/ObjEditor.java b/ObjEditor.java
index a9b5c11..3f3be5b 100644
--- a/ObjEditor.java
+++ b/ObjEditor.java
@@ -2682,6 +2682,12 @@
                 backlit.add(backlitField = new cNumberSlider(this, 0.001, 50, -1)); // , aConstraints);
         colorSection.add(backlit);
 
+        cGridBag parallax = new cGridBag();
+                parallax.add(parallaxLabel = new JLabel("Parallax")); // , aConstraints);
+                parallaxLabel.setHorizontalAlignment(SwingConstants.TRAILING);
+                parallax.add(parallaxField = new cNumberSlider(this, 0.001, 0.5, -0.25)); // , aConstraints);
+        colorSection.add(parallax);
+        
         //panel.add(new JSeparator());
         
         //panel.add(globalSection);
@@ -3733,6 +3739,7 @@
         shadowField.setFloat(mat.shadow);
         textureField.setFloat(mat.texture);
         opacityField.setFloat(mat.opacity);
+        parallaxField.setFloat(mat.parallax + 0.25f);
         fakedepthField.setFloat(mat.fakedepth);
         shadowbiasField.setFloat(mat.shadowbias);
         bumpField.setInteger(1); // dec 2013
@@ -4957,6 +4964,7 @@
             current.shadow = (float) shadowField.getFloat();
             current.texture = (float) textureField.getFloat();
             current.opacity = (float) opacityField.getFloat();
+            current.parallax = (float) parallaxField.getFloat() - 0.25f;
             current.fakedepth = (float) fakedepthField.getFloat();
             current.shadowbias = (float) shadowbiasField.getFloat();
 
@@ -5011,6 +5019,8 @@
                         textureField.SetToolTipValue((mat.texture));
                     if (!Equal(opacityField.getFloat(), mat.opacity))
                         opacityField.SetToolTipValue((mat.opacity));
+                    //if (!Equal(parallaxField.getFloat(), mat.parallax))
+                        parallaxField.SetToolTipValue((mat.parallax));
                     if (!Equal(fakedepthField.getFloat(), mat.fakedepth))
                         fakedepthField.SetToolTipValue((mat.fakedepth));
                     if (!Equal(shadowbiasField.getFloat(), mat.shadowbias))
@@ -6267,6 +6277,8 @@
     cNumberSlider textureField;
     JLabel opacityLabel;
     cNumberSlider opacityField;
+    JLabel parallaxLabel;
+    cNumberSlider parallaxField;
     JLabel fakedepthLabel;
     cNumberSlider fakedepthField;
     JLabel shadowbiasLabel;
diff --git a/cMaterial.java b/cMaterial.java
index fe3d2ea..7f5463d 100644
--- a/cMaterial.java
+++ b/cMaterial.java
@@ -34,6 +34,7 @@
         shadow = val;
         texture = val;
         opacity = val;
+        parallax = val;
         fakedepth = val;
         shadowbias = val;
     }
@@ -71,6 +72,7 @@
         shadow = mat.shadow;
         texture = mat.texture;
         opacity = mat.opacity;
+        parallax = mat.parallax;
         fakedepth = mat.fakedepth;
         shadowbias = mat.shadowbias;
 
@@ -105,16 +107,17 @@
         shadow *= Factor(anchor.shadow, current.shadow);
         texture *= Factor(anchor.texture, current.texture);
         opacity *= Factor(anchor.opacity, current.opacity);
+//        if (anchor.parallax == 0)
+//            anchor.parallax = 0.001f;
+        //parallax *= Factor(anchor.parallax, current.parallax);
+        parallax = current.parallax;
         fakedepth *= Factor(anchor.fakedepth, current.fakedepth);
         shadowbias *= Factor(anchor.shadowbias, current.shadowbias);
     }
 
     float Factor(float anchor, float current)
     {
-        if (anchor <= 0)
-        {
-            assert anchor > 0;
-        }
+        Grafreed.Assert(anchor > 0);
 
         return current / anchor;
     }
@@ -364,6 +367,8 @@
     float sheen = 1f, subsurface = 0.001f, bump = 0.75f, aniso = 0.001f, anisoV = 0.001f;
     float cameralight = 0.3f, diffuseness = 0.001f, shadow = 5f, texture = 1f, opacity = 1;
     float fakedepth = 0.5f, shadowbias = 0.01f; // 0.001f;
+    
+    float parallax = 0;
 
     boolean multiply;
     

--
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