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Commit f9c48575 authored by amandaghassaei's avatar amandaghassaei
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eod

parent 39d05ea4
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index.html
View file @ f9c48575
......@@ -101,6 +101,7 @@
uniform vec2 u_textureDimFaces;
uniform vec2 u_textureDimCreases;
uniform vec2 u_textureDimNodeCreases;
uniform float u_creasePercent;
uniform float u_dt;
uniform sampler2D u_lastPosition;
uniform sampler2D u_lastVelocity;
......@@ -124,7 +125,6 @@
return;
}
vec3 force = texture2D(u_externalForces, scaledFragCoord).xyz;
force.y = 1.0;
vec3 lastPosition = texture2D(u_lastPosition, scaledFragCoord).xyz;
vec3 lastVelocity = texture2D(u_lastVelocity, scaledFragCoord).xyz;
vec3 originalPosition = texture2D(u_originalPosition, scaledFragCoord).xyz;
......@@ -173,12 +173,15 @@
float nodeNum = creaseMeta2[2];
float normalIndex1D = thetas[2];
if (nodeNum > 1.1) normalIndex1D = thetas[3];
float targetTheta = creaseMeta[2] *= u_creasePercent;
if (nodeNum > 1.1) {
normalIndex1D = thetas[3];
}
vec2 normalsIndex = vec2(mod(normalIndex1D, u_textureDimFaces.x)+0.5, floor(normalIndex1D/u_textureDimFaces.x)+0.5);
vec2 scaledNormalsIndex = normalsIndex/u_textureDimFaces;
vec3 normal = texture2D(u_normals, scaledNormalsIndex).xyz;
float angForce = creaseMeta[0]*(creaseMeta[2]-thetas[0]) + creaseMeta[1]*thetas[1];;
float angForce = creaseMeta[0]*(targetTheta-thetas[0]) + creaseMeta[1]*thetas[1];;
float momentArm = creaseMeta2[1];
vec3 _force = angForce/momentArm*normal;
......
js/controls.js
View file @ f9c48575
......@@ -48,28 +48,29 @@ function initControls(globals){
setSliderInput("#axialStiffness", globals.axialStiffness, 100, 1000, 1, function(val){
globals.axialStiffness = val;
globals.dynamicModel.updateMaterials();
globals.materialHasChanged = true;
});
setSliderInput("#creaseStiffness", globals.creaseStiffness, 0, 100, 1, function(val){
globals.creaseStiffness = val;
globals.dynamicModel.updateCreasesMeta();
globals.creaseMaterialHasChanged = true;
});
setSliderInput("#panelStiffness", globals.panelStiffness, 0, 100, 1, function(val){
globals.panelStiffness = val;
globals.dynamicModel.updateCreasesMeta();
globals.creaseMaterialHasChanged = true;
});
setSlider("#damping", globals.percentDamping, 0.05, 1, 0.01, function(val){
globals.percentDamping = val;
}, function(){
globals.dynamicModel.updateMaterials();
globals.dynamicModel.reset();
globals.materialHasChanged = true;
globals.shouldResetDynamicSim = true;
});
setSliderInput("#creasePercent", globals.creasePercent, 0, 1, 0.01, function(val){
globals.creasePercent = val;
globals.shouldChangeCreasePercent = true;
});
function setDeltaT(val){
......
js/dynamicModel.js
View file @ f9c48575
......@@ -68,7 +68,6 @@ function initDynamicModel(globals){
globals.gpuMath.step("zeroTexture", [], "u_lastPosition");
globals.gpuMath.step("zeroTexture", [], "u_velocity");
globals.gpuMath.step("zeroTexture", [], "u_lastVelocity");
// for (var i=0;i<creases.length;i++){
// lastTheta[i*4] = 0;
// lastTheta[i*4+1] = 0;
......@@ -109,10 +108,18 @@ function initDynamicModel(globals){
updateMaterials();
globals.materialHasChanged = false;
}
if (globals.creaseMaterialHasChanged){
updateCreasesMeta();
globals.creaseMaterialHasChanged = false;
}
if (globals.shouldResetDynamicSim){
reset();
globals.shouldResetDynamicSim = false;
}
if (globals.shouldChangeCreasePercent){
setCreasePercent(globals.creasePercent);
globals.shouldChangeCreasePercent = false;
}
var gpuMath = globals.gpuMath;
......@@ -131,25 +138,23 @@ function initDynamicModel(globals){
function render(){
var vectorLength = 1;
globals.gpuMath.setProgram("packToBytes");
globals.gpuMath.setUniformForProgram("packToBytes", "u_vectorLength", vectorLength, "1f");
globals.gpuMath.setSize(textureDim*vectorLength, textureDim);
globals.gpuMath.step("packToBytes", ["u_theta"], "outputBytes");
if (globals.gpuMath.readyToRead()) {
var numPixels = creases.length*vectorLength;
var height = Math.ceil(numPixels/(textureDimCreases*vectorLength));
var pixels = new Uint8Array(height*textureDimCreases*4*vectorLength);
globals.gpuMath.readPixels(0, 0, textureDimCreases * vectorLength, height, pixels);
var parsedPixels = new Float32Array(pixels.buffer);
for (var i = 0; i < creases.length; i++) {
// console.log(parsedPixels[i])
}
} else {
console.log("here");
}
// var vectorLength = 1;
// globals.gpuMath.setProgram("packToBytes");
// globals.gpuMath.setUniformForProgram("packToBytes", "u_vectorLength", vectorLength, "1f");
// globals.gpuMath.setSize(textureDim*vectorLength, textureDim);
// globals.gpuMath.step("packToBytes", ["u_theta"], "outputBytes");
// if (globals.gpuMath.readyToRead()) {
// var numPixels = creases.length*vectorLength;
// var height = Math.ceil(numPixels/(textureDimCreases*vectorLength));
// var pixels = new Uint8Array(height*textureDimCreases*4*vectorLength);
// globals.gpuMath.readPixels(0, 0, textureDimCreases * vectorLength, height, pixels);
// var parsedPixels = new Float32Array(pixels.buffer);
// for (var i = 0; i < creases.length; i++) {
// // console.log(parsedPixels[i])
// }
// } else {
// console.log("here");
// }
var vectorLength = 3;
globals.gpuMath.setProgram("packToBytes");
......@@ -243,6 +248,7 @@ function initDynamicModel(globals){
gpuMath.setUniformForProgram("velocityCalc", "u_textureDimFaces", [textureDimFaces, textureDimFaces], "2f");
gpuMath.setUniformForProgram("velocityCalc", "u_textureDimCreases", [textureDimCreases, textureDimCreases], "2f");
gpuMath.setUniformForProgram("velocityCalc", "u_textureDimNodeCreases", [textureDimNodeCreases, textureDimNodeCreases], "2f");
gpuMath.setUniformForProgram("velocityCalc", "u_creasePercent", globals.creasePercent, "1f");
gpuMath.createProgram("thetaCalc", vertexShader, document.getElementById("thetaCalcShader").text);
gpuMath.setUniformForProgram("thetaCalc", "u_normals", 0, "1i");
......@@ -275,6 +281,7 @@ function initDynamicModel(globals){
}
function updateMaterials(initing){
var index = 0;
for (var i=0;i<nodes.length;i++){
if (initing) {
......@@ -357,6 +364,11 @@ function initDynamicModel(globals){
}
function setCreasePercent(percent){
globals.gpuMath.setProgram("velocityCalc");
globals.gpuMath.setUniformForProgram("velocityCalc", "u_creasePercent", percent, "1f");
}
function initTypedArrays(){
textureDim = calcTextureSize(nodes.length);
......@@ -446,10 +458,6 @@ function initDynamicModel(globals){
return {
syncNodesAndEdges: syncNodesAndEdges,
updateOriginalPosition: updateOriginalPosition,
updateMaterials:updateMaterials,
updateCreasesMeta: updateCreasesMeta,
reset: reset,
pause: pause,
resume: resume,
setVisibility: setVisibility
......
js/globals.js
View file @ f9c48575
......@@ -11,7 +11,9 @@ function initGlobals(){
fixedHasChanged: false,
forceHasChanged: false,
materialHasChanged: false,
creaseMaterialHasChanged: false,
shouldResetDynamicSim: false,
shouldChangeCreasePercent: false,
//3d vis
dynamicSimVisible: true,
......
js/model.js
View file @ f9c48575
......@@ -22,7 +22,7 @@ function initModel(globals){
edges.push(new Beam([nodes[3], nodes[2]]));
var creases = [];
creases.push(new Crease(edges[2], 1, 0, 0, 0, nodes[3], nodes[1], 0));
creases.push(new Crease(edges[2], 1, 0, Math.PI, 1, nodes[3], nodes[1], 0));
_.each(nodes, function(node){
globals.threeView.sceneAddModel(node.getObject3D());
......
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