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Commit 3522f626 authored by amandaghassaei's avatar amandaghassaei
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fixed euler int for typed

parent 3609ba45
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js/simulation/function/EM/emSimLattice.js
View file @ 3522f626
......@@ -49,6 +49,7 @@ define(['underscore', 'backbone', 'threeModel', 'lattice', 'plist', 'emWire', 'G
this.originalQuaternion = new Float32Array(textureSize*4);
this.translation = new Float32Array(textureSize*4);
this.lastTranslation = new Float32Array(textureSize*4);
this.lastLastTranslation = new Float32Array(textureSize*4);
this.velocity = new Float32Array(textureSize*4);
this.lastVelocity = new Float32Array(textureSize*4);
......@@ -556,74 +557,74 @@ define(['underscore', 'backbone', 'threeModel', 'lattice', 'plist', 'emWire', 'G
iter: function(time, runConstants, shouldRender){
gpuMath.step("velocityCalc", ["u_lastVelocity", "u_lastTranslation", "u_mass", "u_neighborsXMapping",
"u_neighborsYMapping", "u_compositeKs", "u_compositeDs", "u_originalPosition", "u_lastQuaternion", "u_wires",
"u_wiresMeta"], "u_velocity", time);
gpuMath.step("positionCalc", ["u_lastVelocity", "u_lastTranslation", "u_mass"], "u_translation");
gpuMath.step("angVelocityCalc", ["u_lastAngVelocity", "u_lastVelocity", "u_lastTranslation", "u_mass", "u_neighborsXMapping",
"u_neighborsYMapping", "u_compositeKs", "u_compositeDs", "u_lastQuaternion", "u_wires",
"u_wiresMeta"], "u_angVelocity", time);
gpuMath.step("quaternionCalc", ["u_angVelocity", "u_lastQuaternion", "u_mass"], "u_quaternion");
if (shouldRender) {
var textureSize = this.textureSize[0]*this.textureSize[1];
//get position
var vectorLength = 3;
gpuMath.setProgram("packToBytes");
gpuMath.setUniformForProgram("packToBytes", "u_vectorLength", vectorLength, "1f");
gpuMath.setSize(this.textureSize[0]*vectorLength, this.textureSize[1]);
gpuMath.step("packToBytes", ["u_translation"], "outputPositionBytes");
var pixels = new Uint8Array(textureSize * 4*vectorLength);
if (gpuMath.readyToRead()) {
gpuMath.readPixels(0, 0, this.textureSize[0] * vectorLength, this.textureSize[1], pixels);
var parsedPixels = new Float32Array(pixels.buffer);
var cells = lattice.getCells();
var multiplier = 1 / (plist.allUnitTypes[lattice.getUnits()].multiplier);
for (var i = 0; i < textureSize; i++) {
var rgbaIndex = 4 * i;
if (this.mass[rgbaIndex+1] < 0) continue;//no more cells
var index = [this.cellsArrayMapping[rgbaIndex], this.cellsArrayMapping[rgbaIndex + 1], this.cellsArrayMapping[rgbaIndex + 2]];
var parsePixelsIndex = vectorLength * i;
var translation = [parsedPixels[parsePixelsIndex], parsedPixels[parsePixelsIndex + 1], parsedPixels[parsePixelsIndex + 2]];
var position = [this.originalPosition[rgbaIndex], this.originalPosition[rgbaIndex + 1], this.originalPosition[rgbaIndex + 2]];
position[0] += multiplier * translation[0];
position[1] += multiplier * translation[1];
position[2] += multiplier * translation[2];
cells[index[0]][index[1]][index[2]].object3D.position.set(position[0], position[1], position[2]);
}
}
vectorLength = 4;
gpuMath.setUniformForProgram("packToBytes", "u_vectorLength", vectorLength, "1f");
gpuMath.setSize(this.textureSize[0]*vectorLength, this.textureSize[1]);
gpuMath.step("packToBytes", ["u_quaternion"], "outputQuaternionBytes");
pixels = new Uint8Array(textureSize * 4*vectorLength);
if (gpuMath.readyToRead()) {
gpuMath.readPixels(0, 0, this.textureSize[0] * vectorLength, this.textureSize[1], pixels);
parsedPixels = new Float32Array(pixels.buffer);
for (var i = 0; i < textureSize; i++) {
var rgbaIndex = 4 * i;
if (this.mass[rgbaIndex+1] < 0) break;//no more cells
var index = [this.cellsArrayMapping[rgbaIndex], this.cellsArrayMapping[rgbaIndex + 1], this.cellsArrayMapping[rgbaIndex + 2]];
var parsePixelsIndex = vectorLength * i;
var quaternion = this._multiplyQuaternions([parsedPixels[parsePixelsIndex], parsedPixels[parsePixelsIndex + 1], parsedPixels[parsePixelsIndex + 2], parsedPixels[parsePixelsIndex + 3]],
[this.originalQuaternion[rgbaIndex], this.originalQuaternion[rgbaIndex+1], this.originalQuaternion[rgbaIndex+2], this.originalQuaternion[rgbaIndex+3]]);
var rotation = this._eulerFromQuaternion(quaternion);
cells[index[0]][index[1]][index[2]].object3D.rotation.set(rotation[0], rotation[1], rotation[2]);
}
}
gpuMath.setSize(this.textureSize[0], this.textureSize[1]);
}
gpuMath.swapTextures("u_velocity", "u_lastVelocity");
gpuMath.swapTextures("u_translation", "u_lastTranslation");
gpuMath.swapTextures("u_angVelocity", "u_lastAngVelocity");
gpuMath.swapTextures("u_quaternion", "u_lastQuaternion");
return;
//gpuMath.step("velocityCalc", ["u_lastVelocity", "u_lastTranslation", "u_mass", "u_neighborsXMapping",
// "u_neighborsYMapping", "u_compositeKs", "u_compositeDs", "u_originalPosition", "u_lastQuaternion", "u_wires",
// "u_wiresMeta"], "u_velocity", time);
//gpuMath.step("positionCalc", ["u_lastVelocity", "u_lastTranslation", "u_mass"], "u_translation");
//gpuMath.step("angVelocityCalc", ["u_lastAngVelocity", "u_lastVelocity", "u_lastTranslation", "u_mass", "u_neighborsXMapping",
// "u_neighborsYMapping", "u_compositeKs", "u_compositeDs", "u_lastQuaternion", "u_wires",
// "u_wiresMeta"], "u_angVelocity", time);
//gpuMath.step("quaternionCalc", ["u_angVelocity", "u_lastQuaternion", "u_mass"], "u_quaternion");
//
//if (shouldRender) {
// var textureSize = this.textureSize[0]*this.textureSize[1];
//
// //get position
// var vectorLength = 3;
// gpuMath.setProgram("packToBytes");
// gpuMath.setUniformForProgram("packToBytes", "u_vectorLength", vectorLength, "1f");
// gpuMath.setSize(this.textureSize[0]*vectorLength, this.textureSize[1]);
// gpuMath.step("packToBytes", ["u_translation"], "outputPositionBytes");
// var pixels = new Uint8Array(textureSize * 4*vectorLength);
// if (gpuMath.readyToRead()) {
// gpuMath.readPixels(0, 0, this.textureSize[0] * vectorLength, this.textureSize[1], pixels);
// var parsedPixels = new Float32Array(pixels.buffer);
// var cells = lattice.getCells();
// var multiplier = 1 / (plist.allUnitTypes[lattice.getUnits()].multiplier);
// for (var i = 0; i < textureSize; i++) {
// var rgbaIndex = 4 * i;
// if (this.mass[rgbaIndex+1] < 0) continue;//no more cells
// var index = [this.cellsArrayMapping[rgbaIndex], this.cellsArrayMapping[rgbaIndex + 1], this.cellsArrayMapping[rgbaIndex + 2]];
// var parsePixelsIndex = vectorLength * i;
// var translation = [parsedPixels[parsePixelsIndex], parsedPixels[parsePixelsIndex + 1], parsedPixels[parsePixelsIndex + 2]];
// var position = [this.originalPosition[rgbaIndex], this.originalPosition[rgbaIndex + 1], this.originalPosition[rgbaIndex + 2]];
// position[0] += multiplier * translation[0];
// position[1] += multiplier * translation[1];
// position[2] += multiplier * translation[2];
// cells[index[0]][index[1]][index[2]].object3D.position.set(position[0], position[1], position[2]);
// }
// }
//
// vectorLength = 4;
// gpuMath.setUniformForProgram("packToBytes", "u_vectorLength", vectorLength, "1f");
// gpuMath.setSize(this.textureSize[0]*vectorLength, this.textureSize[1]);
// gpuMath.step("packToBytes", ["u_quaternion"], "outputQuaternionBytes");
// pixels = new Uint8Array(textureSize * 4*vectorLength);
// if (gpuMath.readyToRead()) {
// gpuMath.readPixels(0, 0, this.textureSize[0] * vectorLength, this.textureSize[1], pixels);
// parsedPixels = new Float32Array(pixels.buffer);
// for (var i = 0; i < textureSize; i++) {
// var rgbaIndex = 4 * i;
// if (this.mass[rgbaIndex+1] < 0) break;//no more cells
// var index = [this.cellsArrayMapping[rgbaIndex], this.cellsArrayMapping[rgbaIndex + 1], this.cellsArrayMapping[rgbaIndex + 2]];
// var parsePixelsIndex = vectorLength * i;
//
// var quaternion = this._multiplyQuaternions([parsedPixels[parsePixelsIndex], parsedPixels[parsePixelsIndex + 1], parsedPixels[parsePixelsIndex + 2], parsedPixels[parsePixelsIndex + 3]],
// [this.originalQuaternion[rgbaIndex], this.originalQuaternion[rgbaIndex+1], this.originalQuaternion[rgbaIndex+2], this.originalQuaternion[rgbaIndex+3]]);
// var rotation = this._eulerFromQuaternion(quaternion);
//
// cells[index[0]][index[1]][index[2]].object3D.rotation.set(rotation[0], rotation[1], rotation[2]);
// }
// }
//
// gpuMath.setSize(this.textureSize[0], this.textureSize[1]);
//}
//
//gpuMath.swapTextures("u_velocity", "u_lastVelocity");
//gpuMath.swapTextures("u_translation", "u_lastTranslation");
//gpuMath.swapTextures("u_angVelocity", "u_lastAngVelocity");
//gpuMath.swapTextures("u_quaternion", "u_lastQuaternion");
//return;
var gravity = runConstants.gravity;
var groundHeight = runConstants.groundHeight;
......@@ -650,7 +651,6 @@ define(['underscore', 'backbone', 'threeModel', 'lattice', 'plist', 'emWire', 'G
var translation = [this.lastTranslation[rgbaIndex], this.lastTranslation[rgbaIndex+1], this.lastTranslation[rgbaIndex+2]];
var velocity = [this.lastVelocity[rgbaIndex], this.lastVelocity[rgbaIndex+1], this.lastVelocity[rgbaIndex+2]];
var quaternion = [this.lastQuaternion[rgbaIndex], this.lastQuaternion[rgbaIndex+1], this.lastQuaternion[rgbaIndex+2], this.lastQuaternion[rgbaIndex+3]];
//var rotation = [this.lastTranslation[rgbaIndex+textureSize*4], this.lastTranslation[rgbaIndex+1+textureSize*4], this.lastTranslation[rgbaIndex+2+textureSize*4]];
var angVelocity = [this.lastAngVelocity[rgbaIndex], this.lastAngVelocity[rgbaIndex+1], this.lastAngVelocity[rgbaIndex+2]];
var wiring = [this.wires[rgbaIndex], this.wires[rgbaIndex+1], this.wires[rgbaIndex+2], this.wires[rgbaIndex+3]];
......@@ -745,28 +745,27 @@ define(['underscore', 'backbone', 'threeModel', 'lattice', 'plist', 'emWire', 'G
}
var acceleration = [force[0]/mass, force[1]/mass, force[2]/mass];
velocity = [velocity[0] + acceleration[0]*dt, velocity[1] + acceleration[1]*dt, velocity[2] + acceleration[2]*dt];
translation = [translation[0] + velocity[0]*dt, translation[1] + velocity[1]*dt, translation[2] + velocity[2]*dt];
var nextVelocity = [velocity[0] + acceleration[0]*dt, velocity[1] + acceleration[1]*dt, velocity[2] + acceleration[2]*dt];
var nextTranslation = [translation[0] + velocity[0]*dt, translation[1] + velocity[1]*dt, translation[2] + velocity[2]*dt];
this.translation[rgbaIndex] = translation[0];
this.translation[rgbaIndex+1] = translation[1];
this.translation[rgbaIndex+2] = translation[2];
this.translation[rgbaIndex] = nextTranslation[0];
this.translation[rgbaIndex+1] = nextTranslation[1];
this.translation[rgbaIndex+2] = nextTranslation[2];
this.velocity[rgbaIndex] = velocity[0];
this.velocity[rgbaIndex+1] = velocity[1];
this.velocity[rgbaIndex+2] = velocity[2];
this.velocity[rgbaIndex] = nextVelocity[0];
this.velocity[rgbaIndex+1] = nextVelocity[1];
this.velocity[rgbaIndex+2] = nextVelocity[2];
var angAcceleration = [rForce[0]/I, rForce[1]/I, rForce[2]/I];
angVelocity = [angVelocity[0] + angAcceleration[0]*dt, angVelocity[1] + angAcceleration[1]*dt, angVelocity[2] + angAcceleration[2]*dt];
var rotationDelta = [angVelocity[0]*dt, angVelocity[1]*dt, angVelocity[2]*dt];
var quaternionDelta = this._quaternionFromEuler(rotationDelta, "ZYX");
this.lastAngVelocity[rgbaIndex] = angVelocity[0];
this.lastAngVelocity[rgbaIndex+1] = angVelocity[1];
this.lastAngVelocity[rgbaIndex+2] = angVelocity[2];
this.angVelocity[rgbaIndex] = angVelocity[0];
this.angVelocity[rgbaIndex+1] = angVelocity[1];
this.angVelocity[rgbaIndex+2] = angVelocity[2];
var nextQuaternion = this._multiplyQuaternions(quaternion, quaternionDelta);
//rotation = this._eulerFromQuaternion(nextQuaternion);
//nextQuaternion = this._normalize4D(nextQuaternion);
this.quaternion[rgbaIndex] = nextQuaternion[0];
......@@ -1107,6 +1106,7 @@ define(['underscore', 'backbone', 'threeModel', 'lattice', 'plist', 'emWire', 'G
cell.object3D.rotation.set(rotation[0], rotation[1], rotation[2]);
});
this.lastLastTranslation = new Float32Array(textureSize*4);
this.lastTranslation = new Float32Array(textureSize*4);
this.translation = new Float32Array(textureSize*4);
this.lastVelocity = new Float32Array(textureSize*4);
......
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