cesiumDemo/Source/Shaders/BillboardCollectionVS.js

//This file is automatically rebuilt by the Cesium build process.
export default "#ifdef INSTANCED\n\
attribute vec2 direction;\n\
#endif\n\
attribute vec4 positionHighAndScale;\n\
attribute vec4 positionLowAndRotation;\n\
attribute vec4 compressedAttribute0;\n\
attribute vec4 compressedAttribute1;\n\
attribute vec4 compressedAttribute2;\n\
attribute vec4 eyeOffset;\n\
attribute vec4 scaleByDistance;\n\
attribute vec4 pixelOffsetScaleByDistance;\n\
attribute vec4 compressedAttribute3;\n\
attribute vec2 sdf;\n\
#if defined(VERTEX_DEPTH_CHECK) || defined(FRAGMENT_DEPTH_CHECK)\n\
attribute vec4 textureCoordinateBoundsOrLabelTranslate;\n\
#endif\n\
#ifdef VECTOR_TILE\n\
attribute float a_batchId;\n\
#endif\n\
varying vec2 v_textureCoordinates;\n\
#ifdef FRAGMENT_DEPTH_CHECK\n\
varying vec4 v_textureCoordinateBounds;\n\
varying vec4 v_originTextureCoordinateAndTranslate;\n\
varying vec4 v_compressed;\n\
varying mat2 v_rotationMatrix;\n\
#endif\n\
varying vec4 v_pickColor;\n\
varying vec4 v_color;\n\
#ifdef SDF\n\
varying vec4 v_outlineColor;\n\
varying float v_outlineWidth;\n\
#endif\n\
const float UPPER_BOUND = 32768.0;\n\
const float SHIFT_LEFT16 = 65536.0;\n\
const float SHIFT_LEFT12 = 4096.0;\n\
const float SHIFT_LEFT8 = 256.0;\n\
const float SHIFT_LEFT7 = 128.0;\n\
const float SHIFT_LEFT5 = 32.0;\n\
const float SHIFT_LEFT3 = 8.0;\n\
const float SHIFT_LEFT2 = 4.0;\n\
const float SHIFT_LEFT1 = 2.0;\n\
const float SHIFT_RIGHT12 = 1.0 / 4096.0;\n\
const float SHIFT_RIGHT8 = 1.0 / 256.0;\n\
const float SHIFT_RIGHT7 = 1.0 / 128.0;\n\
const float SHIFT_RIGHT5 = 1.0 / 32.0;\n\
const float SHIFT_RIGHT3 = 1.0 / 8.0;\n\
const float SHIFT_RIGHT2 = 1.0 / 4.0;\n\
const float SHIFT_RIGHT1 = 1.0 / 2.0;\n\
vec4 addScreenSpaceOffset(vec4 positionEC, vec2 imageSize, float scale, vec2 direction, vec2 origin, vec2 translate, vec2 pixelOffset, vec3 alignedAxis, bool validAlignedAxis, float rotation, bool sizeInMeters, out mat2 rotationMatrix, out float mpp)\n\
{\n\
vec2 halfSize = imageSize * scale * 0.5;\n\
halfSize *= ((direction * 2.0) - 1.0);\n\
vec2 originTranslate = origin * abs(halfSize);\n\
#if defined(ROTATION) || defined(ALIGNED_AXIS)\n\
if (validAlignedAxis || rotation != 0.0)\n\
{\n\
float angle = rotation;\n\
if (validAlignedAxis)\n\
{\n\
vec4 projectedAlignedAxis = czm_modelViewProjection * vec4(alignedAxis, 0.0);\n\
angle += sign(-projectedAlignedAxis.x) * acos(sign(projectedAlignedAxis.y) * (projectedAlignedAxis.y * projectedAlignedAxis.y) /\n\
(projectedAlignedAxis.x * projectedAlignedAxis.x + projectedAlignedAxis.y * projectedAlignedAxis.y));\n\
}\n\
float cosTheta = cos(angle);\n\
float sinTheta = sin(angle);\n\
rotationMatrix = mat2(cosTheta, sinTheta, -sinTheta, cosTheta);\n\
halfSize = rotationMatrix * halfSize;\n\
}\n\
else\n\
{\n\
rotationMatrix = mat2(1.0, 0.0, 0.0, 1.0);\n\
}\n\
#endif\n\
mpp = czm_metersPerPixel(positionEC);\n\
positionEC.xy += (originTranslate + halfSize) * czm_branchFreeTernary(sizeInMeters, 1.0, mpp);\n\
positionEC.xy += (translate + pixelOffset) * mpp;\n\
return positionEC;\n\
}\n\
#ifdef VERTEX_DEPTH_CHECK\n\
float getGlobeDepth(vec4 positionEC)\n\
{\n\
vec4 posWC = czm_eyeToWindowCoordinates(positionEC);\n\
float globeDepth = czm_unpackDepth(texture2D(czm_globeDepthTexture, posWC.xy / czm_viewport.zw));\n\
if (globeDepth == 0.0)\n\
{\n\
return 0.0;\n\
}\n\
vec4 eyeCoordinate = czm_windowToEyeCoordinates(posWC.xy, globeDepth);\n\
return eyeCoordinate.z / eyeCoordinate.w;\n\
}\n\
#endif\n\
void main()\n\
{\n\
vec3 positionHigh = positionHighAndScale.xyz;\n\
vec3 positionLow = positionLowAndRotation.xyz;\n\
float scale = positionHighAndScale.w;\n\
#if defined(ROTATION) || defined(ALIGNED_AXIS)\n\
float rotation = positionLowAndRotation.w;\n\
#else\n\
float rotation = 0.0;\n\
#endif\n\
float compressed = compressedAttribute0.x;\n\
vec2 pixelOffset;\n\
pixelOffset.x = floor(compressed * SHIFT_RIGHT7);\n\
compressed -= pixelOffset.x * SHIFT_LEFT7;\n\
pixelOffset.x -= UPPER_BOUND;\n\
vec2 origin;\n\
origin.x = floor(compressed * SHIFT_RIGHT5);\n\
compressed -= origin.x * SHIFT_LEFT5;\n\
origin.y = floor(compressed * SHIFT_RIGHT3);\n\
compressed -= origin.y * SHIFT_LEFT3;\n\
#ifdef FRAGMENT_DEPTH_CHECK\n\
vec2 depthOrigin = origin.xy;\n\
#endif\n\
origin -= vec2(1.0);\n\
float show = floor(compressed * SHIFT_RIGHT2);\n\
compressed -= show * SHIFT_LEFT2;\n\
#ifdef INSTANCED\n\
vec2 textureCoordinatesBottomLeft = czm_decompressTextureCoordinates(compressedAttribute0.w);\n\
vec2 textureCoordinatesRange = czm_decompressTextureCoordinates(eyeOffset.w);\n\
vec2 textureCoordinates = textureCoordinatesBottomLeft + direction * textureCoordinatesRange;\n\
#else\n\
vec2 direction;\n\
direction.x = floor(compressed * SHIFT_RIGHT1);\n\
direction.y = compressed - direction.x * SHIFT_LEFT1;\n\
vec2 textureCoordinates = czm_decompressTextureCoordinates(compressedAttribute0.w);\n\
#endif\n\
float temp = compressedAttribute0.y  * SHIFT_RIGHT8;\n\
pixelOffset.y = -(floor(temp) - UPPER_BOUND);\n\
vec2 translate;\n\
translate.y = (temp - floor(temp)) * SHIFT_LEFT16;\n\
temp = compressedAttribute0.z * SHIFT_RIGHT8;\n\
translate.x = floor(temp) - UPPER_BOUND;\n\
translate.y += (temp - floor(temp)) * SHIFT_LEFT8;\n\
translate.y -= UPPER_BOUND;\n\
temp = compressedAttribute1.x * SHIFT_RIGHT8;\n\
float temp2 = floor(compressedAttribute2.w * SHIFT_RIGHT2);\n\
vec2 imageSize = vec2(floor(temp), temp2);\n\
#ifdef FRAGMENT_DEPTH_CHECK\n\
float labelHorizontalOrigin = floor(compressedAttribute2.w - (temp2 * SHIFT_LEFT2));\n\
float applyTranslate = 0.0;\n\
if (labelHorizontalOrigin != 0.0)\n\
{\n\
applyTranslate = 1.0;\n\
labelHorizontalOrigin -= 2.0;\n\
depthOrigin.x = labelHorizontalOrigin + 1.0;\n\
}\n\
depthOrigin = vec2(1.0) - (depthOrigin * 0.5);\n\
#endif\n\
#ifdef EYE_DISTANCE_TRANSLUCENCY\n\
vec4 translucencyByDistance;\n\
translucencyByDistance.x = compressedAttribute1.z;\n\
translucencyByDistance.z = compressedAttribute1.w;\n\
translucencyByDistance.y = ((temp - floor(temp)) * SHIFT_LEFT8) / 255.0;\n\
temp = compressedAttribute1.y * SHIFT_RIGHT8;\n\
translucencyByDistance.w = ((temp - floor(temp)) * SHIFT_LEFT8) / 255.0;\n\
#endif\n\
#if defined(VERTEX_DEPTH_CHECK) || defined(FRAGMENT_DEPTH_CHECK)\n\
temp = compressedAttribute3.w;\n\
temp = temp * SHIFT_RIGHT12;\n\
vec2 dimensions;\n\
dimensions.y = (temp - floor(temp)) * SHIFT_LEFT12;\n\
dimensions.x = floor(temp);\n\
#endif\n\
#ifdef ALIGNED_AXIS\n\
vec3 alignedAxis = czm_octDecode(floor(compressedAttribute1.y * SHIFT_RIGHT8));\n\
temp = compressedAttribute2.z * SHIFT_RIGHT5;\n\
bool validAlignedAxis = (temp - floor(temp)) * SHIFT_LEFT1 > 0.0;\n\
#else\n\
vec3 alignedAxis = vec3(0.0);\n\
bool validAlignedAxis = false;\n\
#endif\n\
vec4 pickColor;\n\
vec4 color;\n\
temp = compressedAttribute2.y;\n\
temp = temp * SHIFT_RIGHT8;\n\
pickColor.b = (temp - floor(temp)) * SHIFT_LEFT8;\n\
temp = floor(temp) * SHIFT_RIGHT8;\n\
pickColor.g = (temp - floor(temp)) * SHIFT_LEFT8;\n\
pickColor.r = floor(temp);\n\
temp = compressedAttribute2.x;\n\
temp = temp * SHIFT_RIGHT8;\n\
color.b = (temp - floor(temp)) * SHIFT_LEFT8;\n\
temp = floor(temp) * SHIFT_RIGHT8;\n\
color.g = (temp - floor(temp)) * SHIFT_LEFT8;\n\
color.r = floor(temp);\n\
temp = compressedAttribute2.z * SHIFT_RIGHT8;\n\
bool sizeInMeters = floor((temp - floor(temp)) * SHIFT_LEFT7) > 0.0;\n\
temp = floor(temp) * SHIFT_RIGHT8;\n\
pickColor.a = (temp - floor(temp)) * SHIFT_LEFT8;\n\
pickColor /= 255.0;\n\
color.a = floor(temp);\n\
color /= 255.0;\n\
vec4 p = czm_translateRelativeToEye(positionHigh, positionLow);\n\
vec4 positionEC = czm_modelViewRelativeToEye * p;\n\
#if defined(FRAGMENT_DEPTH_CHECK) || defined(VERTEX_DEPTH_CHECK)\n\
float eyeDepth = positionEC.z;\n\
#endif\n\
positionEC = czm_eyeOffset(positionEC, eyeOffset.xyz);\n\
positionEC.xyz *= show;\n\
#if defined(EYE_DISTANCE_SCALING) || defined(EYE_DISTANCE_TRANSLUCENCY) || defined(EYE_DISTANCE_PIXEL_OFFSET) || defined(DISTANCE_DISPLAY_CONDITION) || defined(DISABLE_DEPTH_DISTANCE)\n\
float lengthSq;\n\
if (czm_sceneMode == czm_sceneMode2D)\n\
{\n\
lengthSq = czm_eyeHeight2D.y;\n\
}\n\
else\n\
{\n\
lengthSq = dot(positionEC.xyz, positionEC.xyz);\n\
}\n\
#endif\n\
#ifdef EYE_DISTANCE_SCALING\n\
float distanceScale = czm_nearFarScalar(scaleByDistance, lengthSq);\n\
scale *= distanceScale;\n\
translate *= distanceScale;\n\
if (scale == 0.0)\n\
{\n\
positionEC.xyz = vec3(0.0);\n\
}\n\
#endif\n\
float translucency = 1.0;\n\
#ifdef EYE_DISTANCE_TRANSLUCENCY\n\
translucency = czm_nearFarScalar(translucencyByDistance, lengthSq);\n\
if (translucency == 0.0)\n\
{\n\
positionEC.xyz = vec3(0.0);\n\
}\n\
#endif\n\
#ifdef EYE_DISTANCE_PIXEL_OFFSET\n\
float pixelOffsetScale = czm_nearFarScalar(pixelOffsetScaleByDistance, lengthSq);\n\
pixelOffset *= pixelOffsetScale;\n\
#endif\n\
#ifdef DISTANCE_DISPLAY_CONDITION\n\
float nearSq = compressedAttribute3.x;\n\
float farSq = compressedAttribute3.y;\n\
if (lengthSq < nearSq || lengthSq > farSq)\n\
{\n\
positionEC.xyz = vec3(0.0);\n\
}\n\
#endif\n\
mat2 rotationMatrix;\n\
float mpp;\n\
#ifdef DISABLE_DEPTH_DISTANCE\n\
float disableDepthTestDistance = compressedAttribute3.z;\n\
#endif\n\
#ifdef VERTEX_DEPTH_CHECK\n\
if (lengthSq < disableDepthTestDistance) {\n\
float depthsilon = 10.0;\n\
vec2 labelTranslate = textureCoordinateBoundsOrLabelTranslate.xy;\n\
vec4 pEC1 = addScreenSpaceOffset(positionEC, dimensions, scale, vec2(0.0), origin, labelTranslate, pixelOffset, alignedAxis, validAlignedAxis, rotation, sizeInMeters, rotationMatrix, mpp);\n\
float globeDepth1 = getGlobeDepth(pEC1);\n\
if (globeDepth1 != 0.0 && pEC1.z + depthsilon < globeDepth1)\n\
{\n\
vec4 pEC2 = addScreenSpaceOffset(positionEC, dimensions, scale, vec2(0.0, 1.0), origin, labelTranslate, pixelOffset, alignedAxis, validAlignedAxis, rotation, sizeInMeters, rotationMatrix, mpp);\n\
float globeDepth2 = getGlobeDepth(pEC2);\n\
if (globeDepth2 != 0.0 && pEC2.z + depthsilon < globeDepth2)\n\
{\n\
vec4 pEC3 = addScreenSpaceOffset(positionEC, dimensions, scale, vec2(1.0), origin, labelTranslate, pixelOffset, alignedAxis, validAlignedAxis, rotation, sizeInMeters, rotationMatrix, mpp);\n\
float globeDepth3 = getGlobeDepth(pEC3);\n\
if (globeDepth3 != 0.0 && pEC3.z + depthsilon < globeDepth3)\n\
{\n\
positionEC.xyz = vec3(0.0);\n\
}\n\
}\n\
}\n\
}\n\
#endif\n\
positionEC = addScreenSpaceOffset(positionEC, imageSize, scale, direction, origin, translate, pixelOffset, alignedAxis, validAlignedAxis, rotation, sizeInMeters, rotationMatrix, mpp);\n\
gl_Position = czm_projection * positionEC;\n\
v_textureCoordinates = textureCoordinates;\n\
#ifdef LOG_DEPTH\n\
czm_vertexLogDepth();\n\
#endif\n\
#ifdef DISABLE_DEPTH_DISTANCE\n\
if (disableDepthTestDistance == 0.0 && czm_minimumDisableDepthTestDistance != 0.0)\n\
{\n\
disableDepthTestDistance = czm_minimumDisableDepthTestDistance;\n\
}\n\
if (disableDepthTestDistance != 0.0)\n\
{\n\
float zclip = gl_Position.z / gl_Position.w;\n\
bool clipped = (zclip < -1.0 || zclip > 1.0);\n\
if (!clipped && (disableDepthTestDistance < 0.0 || (lengthSq > 0.0 && lengthSq < disableDepthTestDistance)))\n\
{\n\
gl_Position.z = -gl_Position.w;\n\
#ifdef LOG_DEPTH\n\
czm_vertexLogDepth(vec4(czm_currentFrustum.x));\n\
#endif\n\
}\n\
}\n\
#endif\n\
#ifdef FRAGMENT_DEPTH_CHECK\n\
if (sizeInMeters) {\n\
translate /= mpp;\n\
dimensions /= mpp;\n\
imageSize /= mpp;\n\
}\n\
#if defined(ROTATION) || defined(ALIGNED_AXIS)\n\
v_rotationMatrix = rotationMatrix;\n\
#else\n\
v_rotationMatrix = mat2(1.0, 0.0, 0.0, 1.0);\n\
#endif\n\
float enableDepthCheck = 0.0;\n\
if (lengthSq < disableDepthTestDistance)\n\
{\n\
enableDepthCheck = 1.0;\n\
}\n\
float dw = floor(clamp(dimensions.x, 0.0, SHIFT_LEFT12));\n\
float dh = floor(clamp(dimensions.y, 0.0, SHIFT_LEFT12));\n\
float iw = floor(clamp(imageSize.x, 0.0, SHIFT_LEFT12));\n\
float ih = floor(clamp(imageSize.y, 0.0, SHIFT_LEFT12));\n\
v_compressed.x = eyeDepth;\n\
v_compressed.y = applyTranslate * SHIFT_LEFT1 + enableDepthCheck;\n\
v_compressed.z = dw * SHIFT_LEFT12 + dh;\n\
v_compressed.w = iw * SHIFT_LEFT12 + ih;\n\
v_originTextureCoordinateAndTranslate.xy = depthOrigin;\n\
v_originTextureCoordinateAndTranslate.zw = translate;\n\
v_textureCoordinateBounds = textureCoordinateBoundsOrLabelTranslate;\n\
#endif\n\
#ifdef SDF\n\
vec4 outlineColor;\n\
float outlineWidth;\n\
temp = sdf.x;\n\
temp = temp * SHIFT_RIGHT8;\n\
outlineColor.b = (temp - floor(temp)) * SHIFT_LEFT8;\n\
temp = floor(temp) * SHIFT_RIGHT8;\n\
outlineColor.g = (temp - floor(temp)) * SHIFT_LEFT8;\n\
outlineColor.r = floor(temp);\n\
temp = sdf.y;\n\
temp = temp * SHIFT_RIGHT8;\n\
float temp3 = (temp - floor(temp)) * SHIFT_LEFT8;\n\
temp = floor(temp) * SHIFT_RIGHT8;\n\
outlineWidth = (temp - floor(temp)) * SHIFT_LEFT8;\n\
outlineColor.a = floor(temp);\n\
outlineColor /= 255.0;\n\
v_outlineWidth = outlineWidth / 255.0;\n\
v_outlineColor = outlineColor;\n\
#endif\n\
v_pickColor = pickColor;\n\
v_color = color;\n\
v_color.a *= translucency;\n\
}\n\
";