bump ofxFluid to newer glsl

zonebb/bin/data/shaders/main.frag

@@ -0,0 +1,161 @@
+#ifdef GL_ES
+precision mediump float;
+#endif
+
+uniform sampler2DRect   uFluid;
+uniform sampler2DRect   uDepth;
+uniform sampler2DRect   uV4l2cam;
+uniform sampler2DRect   u_buffer0;
+uniform sampler2DRect   u_buffer1;
+
+uniform bool        uCalib;
+uniform vec2        uCalibXY;
+uniform float       uCalibScale;
+
+uniform vec2        u_resolution;
+uniform vec2        u_mouse;
+uniform float       u_time;
+
+uniform bool        u_init;
+
+varying vec2        v_texcoord;
+
+
+vec3 random3(vec3 c) {
+	float j = 4096.0*sin(dot(c,vec3(17.0, 59.4, 15.0)));
+	vec3 r;
+	r.z = fract(512.0*j);
+	j *= .125;
+	r.x = fract(512.0*j);
+	j *= .125;
+	r.y = fract(512.0*j);
+	return r-0.5;
+}
+
+/* skew constants for 3d simplex functions */
+const float F3 =  0.3333333;
+const float G3 =  0.1666667;
+
+/* 3d simplex noise */
+float simplex3d(vec3 p) {
+	 /* 1. find current tetrahedron T and it's four vertices */
+	 /* s, s+i1, s+i2, s+1.0 - absolute skewed (integer) coordinates of T vertices */
+	 /* x, x1, x2, x3 - unskewed coordinates of p relative to each of T vertices*/
+	 
+	 /* calculate s and x */
+	 vec3 s = floor(p + dot(p, vec3(F3)));
+	 vec3 x = p - s + dot(s, vec3(G3));
+	 
+	 /* calculate i1 and i2 */
+	 vec3 e = step(vec3(0.0), x - x.yzx);
+	 vec3 i1 = e*(1.0 - e.zxy);
+	 vec3 i2 = 1.0 - e.zxy*(1.0 - e);
+	 	
+	 /* x1, x2, x3 */
+	 vec3 x1 = x - i1 + G3;
+	 vec3 x2 = x - i2 + 2.0*G3;
+	 vec3 x3 = x - 1.0 + 3.0*G3;
+	 
+	 /* 2. find four surflets and store them in d */
+	 vec4 w, d;
+	 
+	 /* calculate surflet weights */
+	 w.x = dot(x, x);
+	 w.y = dot(x1, x1);
+	 w.z = dot(x2, x2);
+	 w.w = dot(x3, x3);
+	 
+	 /* w fades from 0.6 at the center of the surflet to 0.0 at the margin */
+	 w = max(0.6 - w, 0.0);
+	 
+	 /* calculate surflet components */
+	 d.x = dot(random3(s), x);
+	 d.y = dot(random3(s + i1), x1);
+	 d.z = dot(random3(s + i2), x2);
+	 d.w = dot(random3(s + 1.0), x3);
+	 
+	 /* multiply d by w^4 */
+	 w *= w;
+	 w *= w;
+	 d *= w;
+	 
+	 /* 3. return the sum of the four surflets */
+	 return dot(d, vec4(52.0));
+}
+
+/* const matrices for 3d rotation */
+const mat3 rot1 = mat3(-0.37, 0.36, 0.85,-0.14,-0.93, 0.34,0.92, 0.01,0.4);
+const mat3 rot2 = mat3(-0.55,-0.39, 0.74, 0.33,-0.91,-0.24,0.77, 0.12,0.63);
+const mat3 rot3 = mat3(-0.71, 0.52,-0.47,-0.08,-0.72,-0.68,-0.7,-0.45,0.56);
+
+/* directional artifacts can be reduced by rotating each octave */
+float simplex3d_fractal(vec3 m) {
+    return   0.5333333*simplex3d(m*rot1)
+			+0.2666667*simplex3d(2.0*m*rot2)
+			+0.1333333*simplex3d(4.0*m*rot3)
+			+0.0666667*simplex3d(8.0*m);
+}
+
+float depthToSilhouette(float depth) {
+  if(depth <= 0.4) return 0;
+  // if(depth > 0.1) return 0;
+  else return 1;
+}
+
+void main() {
+  vec2 pixel = vec2(1.0);//./u_resolution;
+  vec2 offset[9];
+  offset[0] = pixel * vec2(-1.0,-1.0);
+  offset[1] = pixel * vec2( 0.0,-1.0);
+  offset[2] = pixel * vec2( 1.0,-1.0);
+
+  offset[3] = pixel * vec2(-1.0,0.0);
+  offset[4] = pixel * vec2( 0.0,0.0);
+  offset[5] = pixel * vec2( 1.0,0.0);
+
+  offset[6] = pixel * vec2(-1.0,1.0);
+  offset[7] = pixel * vec2( 0.0,1.0);
+  offset[8] = pixel * vec2( 1.0,1.0);
+
+  vec2 st = v_texcoord;
+  // st.y = 1.0 - st.y;
+
+
+#ifdef BUFFER_0
+  // PING BUFFER
+  //
+  //  Note: Here is where most of the action happens. But need's to read
+  //  te content of the previous pass, for that we are making another buffer
+  //  BUFFER_1 (u_buffer1)
+  vec4 color = vec4(0,0,1,1);
+//  color = texture(u_buffer1, st);
+
+  gl_FragColor = color;
+
+#elif defined( BUFFER_1 )
+  // PONG BUFFER
+  //
+  //  Note: Just copy the content of the BUFFER0 so it can be 
+  //  read by it in the next frame
+  //
+  vec4 color = vec4(1,0,0,1);
+  // color = texture(u_buffer0, st);
+  gl_FragColor = color;
+#else
+  if (uCalib) {
+    vec4 depth = texture(uDepth, st);
+    depth.r *= 100;
+    depth.a = 0;
+    vec4 v4l2 = texture(uV4l2cam, st);
+    gl_FragColor = depth + v4l2;
+  }
+  else {
+    // vec4 bufColor = texture(u_buffer1, st);
+    vec4 color = vec4(st/1000,1,1);
+    color = texture(uFluid, st);
+
+    gl_FragColor = color;
+  }
+#endif
+
+}

zonebb/src/main.cpp

@@ -3,11 +3,21 @@
 
 //========================================================================
 int main( ){
-	ofSetupOpenGL(1024,768,OF_WINDOW);			// <-------- setup the GL context
+    //    ofSetupOpenGL(1024,768,OF_WINDOW);            // <-------- setup the GL context
+    
+    // this kicks off the running of my app
+    // can be OF_WINDOW or OF_FULLSCREEN
+    // pass in width and height too:
+    
+#ifdef TARGET_OPENGLES
+    ofGLESWindowSettings settings;
+    settings.setGLESVersion(2);
+#else
+    ofGLWindowSettings settings;
+    settings.setGLVersion(3, 2);  // Programmable pipeline
+    settings.setSize(1920, 1200);
+#endif
+    ofCreateWindow(settings);
+    ofRunApp(new ofApp());
 
-	// this kicks off the running of my app
+}
-	// can be OF_WINDOW or OF_FULLSCREEN
-	// pass in width and height too:
-	ofRunApp(new ofApp());
-
-}

zonebb/src/ofApp.cpp

@@ -126,8 +126,15 @@ void ofApp::setup()
   setupThermal();
   setupFluid();
 
-  fbos.insert({"main", ofFbo()});
+  mainShader.allocate(ofGetWidth(), ofGetHeight());
-  fbos.at("main").allocate(ofGetWidth(), ofGetHeight(), GL_RGBA32F_ARB);
+  mainShader.load("shaders/main.frag");
+
+  std::vector<std::string> fboNames = {"main", "fluid"};
+  for (auto s : fboNames)
+  {
+    fbos.insert({s, ofFbo()});
+    fbos.at(s).allocate(ofGetWidth(), ofGetHeight(), GL_RGBA32F_ARB);
+  }
 }
 
 ofVec3f ofApp::getDepthAt(int x, int y)
@@ -227,12 +234,12 @@ void ofApp::updateFluid()
 {
   fluid.addColor(v4l2Buffer.at(v4l2BufferCount), 0.1f);
 
-  ofPoint m = ofPoint(mouseX,mouseY);
+  ofPoint m = ofPoint(mouseX, mouseY);
-  ofPoint d = (m - oldM)*10.0;
+  ofPoint d = (m - oldM) * 10.0;
   oldM = m;
-  ofPoint c = ofPoint(640*0.5, 480*0.5) - m;
+  ofPoint c = ofPoint(640 * 0.5, 480 * 0.5) - m;
   c.normalize();
-  fluid.addTemporalForce(m, d, ofFloatColor(0)*sin(ofGetElapsedTimef()),15.0f,20);
+  fluid.addTemporalForce(toGlm(m), toGlm(d), ofFloatColor(0,0,0), 15.0f, 20);
 
   //  Update
   //
@@ -272,9 +279,25 @@ void ofApp::update()
 
 void ofApp::drawMain()
 {
-  ofBackgroundGradient(ofColor::gray, ofColor::black, OF_GRADIENT_LINEAR);
+  // ofBackgroundGradient(ofColor::gray, ofColor::black, OF_GRADIENT_LINEAR);
-
+  fbos.at("fluid").begin();
+  ofClear(0);
   fluid.draw();
+  fbos.at("fluid").end();
+
+  // fbos.at("fluid").draw(0, 0);
+
+  auto tex = kinectDevice.getDepthTex();
+
+  mainShader.setUniformTexture("uDepth", tex);
+  mainShader.setUniformTexture("uV4l2cam", v4l2Buffer.at(v4l2BufferCount));
+  mainShader.setUniform1i("uCalib", calibMode == true ? 1 : 0);
+  mainShader.setUniform2f("uCalibXY", registrationXY);
+  mainShader.setUniform1f("uCalibScale", registrationScale);
+
+  mainShader.setUniformTexture("uFluid", fbos.at("fluid"));
+  mainShader.render();
+  mainShader.draw(0, 0);
 }
 
 void ofApp::drawDebug()
@@ -289,57 +312,46 @@ void ofApp::draw()
   drawDebug();
 }
 
-
 void ofApp::keyPressed(int key)
 {
 }
 
-
 void ofApp::keyReleased(int key)
 {
 }
 
-
 void ofApp::mouseMoved(int x, int y)
 {
 }
 
-
 void ofApp::mouseDragged(int x, int y, int button)
 {
 }
 
-
 void ofApp::mousePressed(int x, int y, int button)
 {
 }
 
-
 void ofApp::mouseReleased(int x, int y, int button)
 {
 }
 
-
 void ofApp::mouseEntered(int x, int y)
 {
 }
 
-
 void ofApp::mouseExited(int x, int y)
 {
 }
 
-
 void ofApp::windowResized(int w, int h)
 {
 }
 
-
 void ofApp::gotMessage(ofMessage msg)
 {
 }
 
-
 void ofApp::dragEvent(ofDragInfo dragInfo)
 {
 }

zonebb/src/ofApp.h

@@ -2,6 +2,7 @@
 
 #include "ofMain.h"
 #include "ofxGui.h"
+#include "ofxShaderFilter.h"
 #include "ofxAzureKinect.h"
 #include "ofxFluid.h"
 #include "ofxV4L2.h"
@@ -40,6 +41,8 @@ public:
   std::map<string, ofFloatImage> gradients;
   std::vector<std::string> gradientNames{"warm1", "warm2", "cold1", "cold2"};
 
+  ofxShaderFilter mainShader;
+
   ofxAzureKinect::Device kinectDevice;
 
   ofxFluid fluid;