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|
<!--
Copyright 2009, Google Inc.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-->
<!--
TODO:
O Set Sun to correct location for time.
O Put in moon
O Put in Google satellite
O Put in Star Shader that uses star data from a texture
O Add Halo
O Add Sun Model
O with glowing rays.
-->
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>
Google Trends Visualizer
</title>
<style>
html, body {
border: 0;
margin: 0;
height: 100%;
height: 100%;
text-align: center;
}
</style>
</head>
<body onload="init();" onunload="uninit();">
<script type="text/javascript" src="../o3djs/base.js"></script>
<script type="text/javascript">
o3djs.require('o3djs.util');
o3djs.require('o3djs.math');
o3djs.require('o3djs.quaternions');
o3djs.require('o3djs.rendergraph');
o3djs.require('o3djs.primitives');
o3djs.require('o3djs.arcball');
o3djs.require('o3djs.io');
var g = {
EARTH_RADIUS: 25,
ENERGY_WIDTH: 0.5,
ENERGY_HEIGHT: 10
};
g.camera = {
eye: [0, 0, 75],
target: [0, 0, 0]
};
var g_finished = false; // for selenium.
var dragging = false;
function startDragging(e) {
g.lastRot = g.thisRot;
g.aball.click([e.x, e.y]);
dragging = true;
}
function drag(e) {
if (dragging) {
var rotationQuat = g.aball.drag([e.x, e.y]);
var rot_mat = g.quaternions.quaternionToRotation(rotationQuat);
g.thisRot = g.math.matrix4.mul(g.lastRot, rot_mat);
var m = g.root.localMatrix;
g.math.matrix4.setUpper3x3(m, g.thisRot);
g.root.localMatrix = m;
}
}
function stopDragging(e) {
dragging = false;
}
function updateViewFromCamera() {
var target = g.camera.target;
var eye = g.camera.eye;
var up = [0, 1, 0];
g.viewInfo.drawContext.view = g.math.matrix4.lookAt(eye, target, up);
g.eyePosParam.value = eye;
}
function scrollMe(e) {
if (e.deltaY > 0) {
g.camera.eye[0] *= 11 / 12;
g.camera.eye[1] *= 11 / 12;
g.camera.eye[2] *= 11 / 12;
} else {
g.camera.eye[0] *= (1 + 1 / 12);
g.camera.eye[1] *= (1 + 1 / 12);
g.camera.eye[2] *= (1 + 1 / 12);
}
updateViewFromCamera();
}
function getURL(path) {
var base = window.location.href;
var index = base.lastIndexOf('/');
base = base.substring(0, index + 1);
return base + path;
}
function setClientSize() {
var newWidth = g.client.width;
var newHeight = g.client.height;
if (newWidth != g.o3dWidth || newHeight != g.o3dHeight) {
g.o3dWidth = newWidth;
g.o3dHeight = newHeight;
// Create a perspective projection matrix
g.viewInfo.drawContext.projection = g.math.matrix4.perspective(
g.math.degToRad(45), g.o3dWidth / g.o3dHeight, 0.1, 5000);
// Sets a new area size for arcball.
g.aball.setAreaSize(g.o3dWidth, g.o3dHeight);
}
}
function onRender() {
setClientSize();
}
function createEnergyShape(pack, material, width, height) {
var vertexInfo = o3djs.primitives.createVertexInfo();
var positionStream = vertexInfo.addStream(
3, g.o3d.Stream.POSITION);
var normalStream = vertexInfo.addStream(
3, g.o3d.Stream.NORMAL);
var colorStream = vertexInfo.addStream(
4, g.o3d.Stream.COLOR);
var texCoordStream = vertexInfo.addStream(
2, g.o3d.Stream.TEXCOORD, 0);
var vScale = 1;
positionStream.addElement(width * -0.5, height, 0);
normalStream.addElement(0, 0, 1);
colorStream.addElement(1, 1, 1, 0);
texCoordStream.addElement(0, 0);
positionStream.addElement(width * 0.5, height, 0);
normalStream.addElement(0, 0, 1);
colorStream.addElement(1, 1, 1, 0);
texCoordStream.addElement(1, 0);
positionStream.addElement(width * -0.5, 0, 0);
normalStream.addElement(0, 0, 1);
colorStream.addElement(1, 1, 1, 1);
texCoordStream.addElement(0, vScale);
positionStream.addElement(width * 0.5, 0, 0);
normalStream.addElement(0, 0, 1);
colorStream.addElement(1, 1, 1, 1);
texCoordStream.addElement(1, vScale);
positionStream.addElement(0, height, width * -0.5);
normalStream.addElement(1, 0, 0);
colorStream.addElement(1, 1, 1, 0);
texCoordStream.addElement(0, 0);
positionStream.addElement(0, height, width * 0.5);
normalStream.addElement(1, 0, 0);
colorStream.addElement(1, 1, 1, 0);
texCoordStream.addElement(1, 0);
positionStream.addElement(0, 0, width * -0.5);
normalStream.addElement(1, 0, 0);
colorStream.addElement(1, 1, 1, 1);
texCoordStream.addElement(0, vScale);
positionStream.addElement(0, 0, width * 0.5);
normalStream.addElement(1, 0, 0);
colorStream.addElement(1, 1, 1, 1);
texCoordStream.addElement(1, vScale);
vertexInfo.addTriangle(0, 1, 2);
vertexInfo.addTriangle(1, 2, 3);
vertexInfo.addTriangle(4, 5, 6);
vertexInfo.addTriangle(5, 6, 7);
return vertexInfo.createShape(pack, material);
}
// A geo is a float where the integer part is in degrees and the fractional
// part is in 60ths
function geoToRad(geo) {
var sign = geo >= 0 ? 1 : -1;
geo = Math.abs(geo);
var integerPart = Math.floor(geo);
var fractionalPart = (geo % 1) * 100;
fractionalPart = fractionalPart / 60;
return g.math.degToRad(integerPart + fractionalPart);
}
function addEnergyShard(latitude, longitude, energy, height, color) {
var transform = g.pack.createObject('Transform');
transform.rotateZ(geoToRad(latitude));
transform.rotateY(geoToRad(-longitude));
transform.rotateZ(g.math.degToRad(90));
transform.translate(0, g.EARTH_RADIUS, 0);
transform.parent = g.root;
transform.addShape(g.energyShape);
transform.createParam('colorMult', 'ParamFloat4').value = color;
transform.createParam('offset', 'ParamFloat').value = Math.random();
return transform;
}
/**
* Creates the client area.
*/
function init() {
o3djs.util.makeClients(initStep2);
}
/**
* Initializes o3d
* @param {Array} clientElements Array of o3d object elements.
*/
function initStep2(clientElements) {
var path = window.location.href;
var index = path.lastIndexOf('/');
g.o3dElement = clientElements[0];
g.o3d = g.o3dElement.o3d;
g.math = o3djs.math;
g.quaternions = o3djs.quaternions;
g.client = g.o3dElement.client;
g.pack = g.client.createPack();
// Create the render graph for a view.
g.viewInfo = o3djs.rendergraph.createBasicView(
g.pack,
g.client.root,
g.client.renderGraphRoot);
// Set the background color to black.
g.viewInfo.clearBuffer.clearColor = [0, 0, 0, 0];
// Set states for shards.
g.viewInfo.zOrderedState.getStateParam('CullMode').value =
g.o3d.State.CULL_NONE;
g.viewInfo.zOrderedState.getStateParam('DestinationBlendFunction').value =
g.o3d.State.BLENDFUNC_ONE;
g.viewInfo.zOrderedState.getStateParam('ZWriteEnable').value = false;
g.viewInfo.performanceDrawPass.sortMethod = g.o3d.DrawList.BY_PRIORITY;
g.lastRot = g.math.matrix4.identity();
g.thisRot = g.math.matrix4.identity();
var root = g.client.root;
// Create a param for the sun and eye positions that we can bind
// to auto update a bunch of materials.
g.globalParams = g.pack.createObject('ParamObject');
g.sunPosParam = g.globalParams.createParam('sunPos', 'ParamFloat3');
g.sunPosParam.value = [1000, 200, 100];
g.eyePosParam = g.globalParams.createParam('eyePos', 'ParamFloat3');
updateViewFromCamera();
g.aball = o3djs.arcball.create(100, 100);
setClientSize();
g.client.setRenderCallback(onRender);
// Create Materials.
var effectNames = [
"noTexture",
"dayOnly",
"nightAndDay",
"mask",
"energy",
"atmosphere"
];
g.materials = [];
for (var ii = 0; ii < effectNames.length; ++ii) {
var effectName = effectNames[ii];
var effect = g.pack.createObject('Effect');
effect.loadFromFXString(document.getElementById(effectName).value);
// Create a Material for the effect.
var material = g.pack.createObject('Material');
// Apply our effect to this material. The effect tells the 3D hardware
// which shader to use.
material.effect = effect;
// Set the material's drawList
material.drawList = g.viewInfo.performanceDrawList;
// This will create the effects's params on the material.
effect.createUniformParameters(material);
// Bind the sun position to a global value so we can easily change it
// globally.
var sunParam = material.getParam('sunPos');
if (sunParam) {
sunParam.bind(g.sunPosParam);
}
// Save off the material.
g.materials.push(material);
}
g.noTextureMaterial = g.materials[0];
g.dayOnlyMaterial = g.materials[1];
g.nightAndDayMaterial = g.materials[2];
g.maskMaterial = g.materials[3];
g.energyMaterial = g.materials[4];
g.energyMaterial.drawList = g.viewInfo.zOrderedDrawList;
g.atmosphereMaterial = g.materials[5];
// create samplers
g.samplers = [];
for (var ii = 0; ii < 4; ++ii) {
var sampler = g.pack.createObject('Sampler');
g.samplers[ii] = sampler;
}
g.daySampler = g.samplers[0];
g.nightSampler = g.samplers[1];
g.maskSampler = g.samplers[2];
g.energySampler = g.samplers[3];
// set the material samplers.
g.dayOnlyMaterial.getParam('daySampler').value = g.daySampler;
g.nightAndDayMaterial.getParam('daySampler').value = g.daySampler;
g.nightAndDayMaterial.getParam('nightSampler').value = g.nightSampler;
g.maskMaterial.getParam('daySampler').value = g.daySampler;
g.maskMaterial.getParam('maskSampler').value = g.maskSampler;
g.maskMaterial.getParam('nightSampler').value = g.nightSampler;
g.energyMaterial.getParam('energySampler').value = g.energySampler;
// Create energy texture(s)
{
var dots = [ 0, 1, 0, 1, 0, 0, 1, 0,
1, 0, 0, 1, 0, 1, 0, 0,
1, 0, 1, 0, 0, 0, 1, 0,
0, 1, 0, 1, 0, 0, 1, 0 ];
var texture = g.pack.createTexture2D(3,
dots.length,
g.o3d.Texture.XRGB8,
1,
false);
var pixels = [];
for (var yy = 0; yy < dots.length; ++yy) {
for (var xx = 0; xx < 3; ++xx) {
var pixelOffset = (yy * 3 + xx) * 3;
var color = (xx == 1) ? dots[yy] : 0;
for (var cc = 0; cc < 3; ++cc) {
pixels[pixelOffset + cc] = color;
}
}
}
texture.set(0, pixels);
g.energySampler.texture = texture;
}
// Setup counters for shard animation.
g.shardCounter = g.pack.createObject('SecondCounter');
g.shardCounter.multiplier = 0.1;
g.energyMaterial.getParam('time').bind(
g.shardCounter.getParam('count'));
// Setup counters to fade in textures.
g.flatToDayCounter = g.pack.createObject('SecondCounter');
g.flatToDayCounter.end = 1;
g.flatToDayCounter.multiplier = 0.5;
g.flatToDayCounter.countMode = g.o3d.Counter.ONCE;
g.flatToDayCounter.running = false;
g.flatToDayCounter.addCallback(1, loadNightTexture);
g.dayOnlyMaterial.getParam('mix').bind(
g.flatToDayCounter.getParam('count'));
g.dayOnlyToNightCounter = g.pack.createObject('SecondCounter');
g.dayOnlyToNightCounter.end = 1;
g.dayOnlyToNightCounter.multiplier = 0.5;
g.dayOnlyToNightCounter.countMode = g.o3d.Counter.ONCE;
g.dayOnlyToNightCounter.running = false;
g.dayOnlyToNightCounter.addCallback(1, loadMaskTexture);
g.nightAndDayMaterial.getParam('mix').bind(
g.dayOnlyToNightCounter.getParam('count'));
g.noMaskToMaskCounter = g.pack.createObject('SecondCounter');
g.noMaskToMaskCounter.end = 1;
g.noMaskToMaskCounter.multiplier = 0.5;
g.noMaskToMaskCounter.countMode = g.o3d.Counter.ONCE;
g.noMaskToMaskCounter.running = false;
g.maskMaterial.getParam('mix').bind(
g.noMaskToMaskCounter.getParam('count'));
// Create a sphere at the origin for the earth.
var earth = o3djs.primitives.createSphere(g.pack,
g.noTextureMaterial,
25,
50,
50);
// Get a the element so we can set its material later.
g.earthPrimitive = earth.elements[0];
g.atmosphereState = g.pack.createObject('State');
g.atmosphereState.getStateParam('AlphaBlendEnable').value = true;
g.atmosphereState.getStateParam('SourceBlendFunction').value =
g.o3d.State.BLENDFUNC_SOURCE_ALPHA;
g.atmosphereState.getStateParam('DestinationBlendFunction').value =
g.o3d.State.BLENDFUNC_INVERSE_SOURCE_ALPHA;
g.atmosphereState.getStateParam('ZWriteEnable').value = false;
g.atmosphereMaterial.state = g.atmosphereState;
g.root = g.pack.createObject('Transform');
g.root.parent = g.client.root;
g.earth = g.pack.createObject('Transform');
g.earth.addShape(earth);
g.earth.parent = g.root;
// Create a sphere at the origin for the atmosphere.
var atmosphere = o3djs.primitives.createSphere(g.pack,
g.atmosphereMaterial,
26,
50,
50);
g.atmospherePrimitive = atmosphere.elements[0];
g.atmospherePrimitive.priority = 1;
g.atmosphere = g.pack.createObject('Transform');
g.atmosphere.addShape(atmosphere);
g.atmosphere.parent = g.root;
g.energyShape = createEnergyShape(g.pack,
g.energyMaterial,
g.ENERGY_WIDTH,
g.ENERGY_HEIGHT);
addEnergyShard(0, 0, 1, 1, [1, 1, 1, 1]);
// Honolulu, Hawaii, 21, 18, 157, 50
addEnergyShard(21.18, 157.50, 1, 1, [0, 1, 0, 1]);
// San Francisco, Calif. 37 47 122 26
addEnergyShard(37.47, 122.26, 1, 1, [1, 0.5, 0.5, 1]);
for (var ii = 0; ii < 24; ++ii) {
var longitude = Math.random() * 360;
var latitude = Math.random() * 360 - 180;
var color = [ Math.random() * 0.5 + 0.2,
Math.random() * 0.5 + 0.2,
Math.random() * 0.5 + 0.2,
1 ];
for (var jj = 0; jj < 24; ++jj) {
addEnergyShard(latitude + (Math.random() - 0.5) * 10,
longitude + (Math.random() - 0.5) * 10,
1,
1,
color);
}
}
o3djs.event.addEventListener(g.o3dElement, 'mousedown', startDragging);
o3djs.event.addEventListener(g.o3dElement, 'mousemove', drag);
o3djs.event.addEventListener(g.o3dElement, 'mouseup', stopDragging);
o3djs.event.addEventListener(g.o3dElement, 'wheel', scrollMe);
loadDayTexture();
}
function loadTexture(path, callback) {
var url = getURL(path);
o3djs.io.loadTexture(g.pack, url, function(texture, exception) {
if (exception) {
alert(exception);
} else {
callback(texture);
}
});
}
function loadDayTexture() {
loadTexture('assets/earth.jpg', function(texture) {
g.daySampler.texture = texture;
g.earthPrimitive.material = g.dayOnlyMaterial;
g.flatToDayCounter.running = true;
});
}
function loadNightTexture() {
loadTexture('assets/night.jpg', function(texture) {
g.nightSampler.texture = texture;
g.earthPrimitive.material = g.nightAndDayMaterial;
g.dayOnlyToNightCounter.running = true;
});
}
function loadMaskTexture() {
loadTexture('assets/earth-large-with-ocean-mask.png', function(texture) {
g.maskSampler.texture = texture;
g.earthPrimitive.material = g.maskMaterial;
g.noMaskToMaskCounter.running = true;
g_finished = true; // for selenium
});
}
function uninit() {
// TODO: We should clean up any counters that have callbacks here.
if (g.client) {
g.client.cleanup();
}
}
</script>
<!--<h1>
Google Trends Visualizer.
</h1>-->
<div id="o3d" style="width:100%; height: 100%;"></div>
<div style="display:none">
<textarea id="noTexture" name="fx" cols="80" rows="20">
float4x4 worldViewProjection : WorldViewProjection;
float4x4 world : World;
float4x4 view : View;
float3 sunPos;
struct a2v {
float4 pos : POSITION;
float3 normal : NORMAL;
};
struct v2f {
float4 pos : POSITION;
float3 normal : TEXCOORD0;
float3 sun : TEXCOORD1;
float3 view : TEXCOORD2;
};
v2f vsMain(a2v IN) {
v2f OUT;
OUT.pos = mul(IN.pos, worldViewProjection);
OUT.normal = mul(float4(IN.normal, 0), world).xyz;
float3 worldPos = mul(IN.pos, world).xyz;
OUT.sun = sunPos - worldPos;
OUT.view = (view[3] - worldPos);
return OUT;
}
float4 psMain(v2f IN): COLOR {
float3 norm = normalize(IN.normal);
float3 sun = normalize(IN.sun);
float light = dot(norm, sun);
float lightSign = sign(light);
float dayNight = 1 - sqrt(light);
dayNight = dayNight * dayNight;
dayNight = (1 - dayNight) * lightSign;
dayNight = clamp(dayNight, 0, 1);
float3 view = normalize(IN.view);
float3 r = normalize(reflect(norm, sun));
float4 litR = lit(light, dot(r, view), 0.0).y;
float3 day = float3(0.5, 0.5, 1.0) * litR.y + float3(1,1,1) * litR.z;
float3 night = float3(0.2, 0.2, 0.5);
return float4(lerp(night, day, dayNight),1);
}
// #o3d VertexShaderEntryPoint vsMain
// #o3d PixelShaderEntryPoint psMain
// #o3d MatrixLoadOrder RowMajor
</textarea>
<textarea id="dayOnly" name="fx" cols="80" rows="20">
float4x4 worldViewProjection : WorldViewProjection;
float4x4 world : World;
float4x4 view : View;
float3 sunPos;
float mix;
sampler2D daySampler;
struct a2v {
float4 pos : POSITION;
float3 normal : NORMAL;
float2 uv : TEXCOORD0;
};
struct v2f {
float4 pos : POSITION;
float2 uv : TEXCOORD0;
float3 normal : TEXCOORD1;
float3 sun : TEXCOORD2;
float3 view : TEXCOORD3;
};
v2f vsMain(a2v IN) {
v2f OUT;
OUT.pos = mul(IN.pos, worldViewProjection);
OUT.uv = IN.uv;
OUT.normal = mul(float4(IN.normal, 0), world).xyz;
float3 worldPos = mul(IN.pos, world).xyz;
OUT.sun = sunPos - worldPos;
OUT.view = (view[3] - worldPos);
return OUT;
}
float4 psMain(v2f IN): COLOR {
float3 norm = normalize(IN.normal);
float3 sun = normalize(IN.sun);
float light = dot(norm, sun);
float lightSign = sign(light);
float dayNight = 1 - sqrt(light);
dayNight = dayNight * dayNight;
dayNight = (1 - dayNight) * lightSign;
dayNight = clamp(dayNight, 0, 1);
float3 view = normalize(IN.view);
float3 r = normalize(reflect(norm, sun));
float4 litR = lit(light, dot(r, view), 0.0).y;
float3 earth = tex2D(daySampler, IN.uv).xyz;
float3 day = lerp(float3(0.5, 0.5, 1.0), earth, mix);
day = day * litR.y + float3(1,1,1) * litR.z;
float3 night = lerp(float3(0.2, 0.2, 0.5), earth * 0.3, mix);
return float4(lerp(night, day, dayNight),1);
}
// #o3d VertexShaderEntryPoint vsMain
// #o3d PixelShaderEntryPoint psMain
// #o3d MatrixLoadOrder RowMajor
</textarea>
<textarea id="nightAndDay" name="fx" cols="80" rows="20">
float4x4 worldViewProjection : WorldViewProjection;
float4x4 world : World;
float4x4 view : View;
float3 sunPos;
float mix;
sampler2D daySampler;
sampler2D nightSampler;
struct a2v {
float4 pos : POSITION;
float3 normal : NORMAL;
float2 uv : TEXCOORD0;
};
struct v2f {
float4 pos : POSITION;
float2 uv : TEXCOORD0;
float3 normal : TEXCOORD1;
float3 sun : TEXCOORD2;
float3 view : TEXCOORD3;
};
v2f vsMain(a2v IN) {
v2f OUT;
OUT.pos = mul(IN.pos, worldViewProjection);
OUT.uv = IN.uv;
OUT.normal = mul(float4(IN.normal, 0), world).xyz;
float3 worldPos = mul(IN.pos, world).xyz;
OUT.sun = sunPos - worldPos;
OUT.view = (view[3] - worldPos);
return OUT;
}
float4 psMain(v2f IN): COLOR {
float3 norm = normalize(IN.normal);
float3 sun = normalize(IN.sun);
float light = dot(norm, sun);
float lightSign = sign(light);
float dayNight = 1 - sqrt(light);
dayNight = dayNight * dayNight;
dayNight = (1 - dayNight) * lightSign;
dayNight = clamp(dayNight, 0, 1);
float3 view = normalize(IN.view);
float3 r = normalize(reflect(norm, sun));
float4 litR = lit(light, dot(r, view), 0.0).y;
float3 earth = tex2D(daySampler, IN.uv).xyz;
float3 day = tex2D(daySampler, IN.uv).xyz;
float3 night = lerp(day * 0.3, tex2D(nightSampler, IN.uv).xyz, mix);
day = day * litR.y + float3(1,1,1) * litR.z;
return float4(lerp(night, day, dayNight),1);
}
// #o3d VertexShaderEntryPoint vsMain
// #o3d PixelShaderEntryPoint psMain
// #o3d MatrixLoadOrder RowMajor
</textarea>
<!--
This shader renders the ocean different then the non-ocean using a mask
stored in the alpha channel of the maskSampler
-->
<textarea id="mask" name="fx" cols="80" rows="20">
float4x4 worldViewProjection : WorldViewProjection;
float4x4 world : World;
float4x4 view : View;
float3 sunPos;
float mix;
sampler2D daySampler;
sampler2D nightSampler;
sampler2D maskSampler;
struct a2v {
float4 pos : POSITION;
float3 normal : NORMAL;
float2 uv : TEXCOORD0;
};
struct v2f {
float4 pos : POSITION;
float2 uv : TEXCOORD0;
float3 normal : TEXCOORD1;
float3 sun : TEXCOORD2;
float3 view : TEXCOORD3;
};
v2f vsMain(a2v IN) {
v2f OUT;
OUT.pos = mul(IN.pos, worldViewProjection);
OUT.uv = IN.uv;
OUT.normal = mul(float4(IN.normal, 0), world).xyz;
float3 worldPos = mul(IN.pos, world).xyz;
OUT.sun = sunPos - worldPos;
OUT.view = (view[3] - worldPos);
return OUT;
}
float4 psMain(v2f IN): COLOR {
float3 norm = normalize(IN.normal);
float3 sun = normalize(IN.sun);
float light = dot(norm, sun);
float lightSign = sign(light);
float dayNight = 1 - sqrt(light);
dayNight = dayNight * dayNight;
dayNight = (1 - dayNight) * lightSign;
dayNight = clamp(dayNight, 0, 1);
float3 view = normalize(IN.view);
float3 r = normalize(reflect(norm, sun));
float4 litR = lit(light, dot(r, view), 0.0).y;
float3 earth = tex2D(daySampler, IN.uv).xyz;
float4 mask = tex2D(maskSampler, IN.uv);
float3 day = lerp(tex2D(daySampler, IN.uv).xyz,
mask.xyz, mix);
float3 night = tex2D(nightSampler, IN.uv).xyz;
day = day * litR.y + float3(1,1,1) * litR.z * (1 - mask.w * mix);
float3 color = lerp(night, day, dayNight);
return float4(color,1);
}
// #o3d VertexShaderEntryPoint vsMain
// #o3d PixelShaderEntryPoint psMain
// #o3d MatrixLoadOrder RowMajor
</textarea>
<textarea id="energy" name="fx" cols="80" rows="20">
float4x4 worldViewProjection : WorldViewProjection;
// time is used to scroll the UV coords
float time;
// offset is used to allow each shard to scroll over a different part of the
// texture.
float offset;
// Sets the color of the shard.
float4 colorMult;
// Provides the dots on the shard.
sampler2D energySampler;
struct a2v {
float4 pos : POSITION;
float3 norm : NORMAL;
float4 color : COLOR;
float2 uv : TEXCOORD0;
};
struct v2f {
float4 pos : POSITION;
float2 uv : TEXCOORD0;
float4 color : TEXCOORD1;
};
v2f vsMain(a2v IN) {
v2f OUT;
OUT.pos = mul(IN.pos, worldViewProjection);
OUT.uv = float2(IN.uv.x, IN.uv.y + time + offset);
OUT.color = IN.color;
return OUT;
}
float4 psMain(v2f IN): COLOR {
return float4(tex2D(energySampler, IN.uv)) * IN.color * colorMult;
}
// #o3d VertexShaderEntryPoint vsMain
// #o3d PixelShaderEntryPoint psMain
// #o3d MatrixLoadOrder RowMajor
</textarea>
<textarea id="atmosphere" name="fx" cols="80" rows="20">
float4x4 worldViewProjection : WorldViewProjection;
float4x4 worldView : WorldView;
float3 sunPos;
float3 eyePos;
struct a2v {
float4 pos : POSITION;
float3 norm : NORMAL;
};
struct v2f {
float4 pos : POSITION;
float3 normal : TEXCOORD0;
};
v2f vsMain(a2v IN) {
v2f OUT;
OUT.pos = mul(IN.pos, worldViewProjection);
OUT.normal = normalize(mul(float4(IN.norm,0), worldView).xyz);
return OUT;
}
float4 psMain(v2f IN): COLOR {
float n = 1 - log(2 * normalize(IN.normal).z);
return float4(0.3, 0.3, 1, n * n * n * n);
}
// #o3d VertexShaderEntryPoint vsMain
// #o3d PixelShaderEntryPoint psMain
// #o3d MatrixLoadOrder RowMajor
</textarea>
</div>
</body>
</html>
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