water-management-system/frontend/node_modules/@cesium/engine/Source/Shaders/PointPrimitiveCollectionVS.js

//This file is automatically rebuilt by the Cesium build process.
export default "uniform float u_maxTotalPointSize;\n\
\n\
in vec4 positionHighAndSize;\n\
in vec4 positionLowAndOutline;\n\
in vec4 compressedAttribute0;                                        // color, outlineColor, pick color\n\
in vec4 compressedAttribute1;                                        // show, translucency by distance, some free space\n\
in vec4 scaleByDistance;                                             // near, nearScale, far, farScale\n\
in vec4 distanceDisplayConditionAndDisableDepthAndSplitDirection;    // near, far, disableDepthTestDistance, splitDirection\n\
\n\
out vec4 v_color;\n\
out vec4 v_outlineColor;\n\
out float v_innerPercent;\n\
out float v_pixelDistance;\n\
out vec4 v_pickColor;\n\
out float v_splitDirection;\n\
\n\
const float SHIFT_LEFT8 = 256.0;\n\
const float SHIFT_RIGHT8 = 1.0 / 256.0;\n\
\n\
void main()\n\
{\n\
    // Modifying this shader may also require modifications to PointPrimitive._computeScreenSpacePosition\n\
\n\
    // unpack attributes\n\
    vec3 positionHigh = positionHighAndSize.xyz;\n\
    vec3 positionLow = positionLowAndOutline.xyz;\n\
    float outlineWidthBothSides = 2.0 * positionLowAndOutline.w;\n\
    float totalSize = positionHighAndSize.w + outlineWidthBothSides;\n\
    float outlinePercent = outlineWidthBothSides / totalSize;\n\
    // Scale in response to browser-zoom.\n\
    totalSize *= czm_pixelRatio;\n\
\n\
    float temp = compressedAttribute1.x * SHIFT_RIGHT8;\n\
    float show = floor(temp);\n\
\n\
#ifdef EYE_DISTANCE_TRANSLUCENCY\n\
    vec4 translucencyByDistance;\n\
    translucencyByDistance.x = compressedAttribute1.z;\n\
    translucencyByDistance.z = compressedAttribute1.w;\n\
\n\
    translucencyByDistance.y = ((temp - floor(temp)) * SHIFT_LEFT8) / 255.0;\n\
\n\
    temp = compressedAttribute1.y * SHIFT_RIGHT8;\n\
    translucencyByDistance.w = ((temp - floor(temp)) * SHIFT_LEFT8) / 255.0;\n\
#endif\n\
\n\
    ///////////////////////////////////////////////////////////////////////////\n\
\n\
    vec4 color = czm_decodeRGB8(compressedAttribute0.x);\n\
    vec4 outlineColor = czm_decodeRGB8(compressedAttribute0.y);\n\
    vec4 pickColor = czm_decodeRGB8(compressedAttribute0.z);\n\
    vec4 alphaPacked = czm_decodeRGB8(compressedAttribute0.w);\n\
\n\
    color.a = alphaPacked.x;\n\
    outlineColor.a = alphaPacked.y;\n\
    pickColor.a = alphaPacked.z;\n\
\n\
    ///////////////////////////////////////////////////////////////////////////\n\
\n\
    vec4 p = czm_translateRelativeToEye(positionHigh, positionLow);\n\
    vec4 positionEC = czm_modelViewRelativeToEye * p;\n\
\n\
    ///////////////////////////////////////////////////////////////////////////\n\
\n\
#if defined(EYE_DISTANCE_SCALING) || defined(EYE_DISTANCE_TRANSLUCENCY) || defined(DISTANCE_DISPLAY_CONDITION) || defined(DISABLE_DEPTH_DISTANCE)\n\
    float lengthSq;\n\
    if (czm_sceneMode == czm_sceneMode2D)\n\
    {\n\
        // 2D camera distance is a special case\n\
        // treat all billboards as flattened to the z=0.0 plane\n\
        lengthSq = czm_eyeHeight2D.y;\n\
    }\n\
    else\n\
    {\n\
        lengthSq = dot(positionEC.xyz, positionEC.xyz);\n\
    }\n\
#endif\n\
\n\
#ifdef EYE_DISTANCE_SCALING\n\
    totalSize *= czm_nearFarScalar(scaleByDistance, lengthSq);\n\
#endif\n\
    if (totalSize > 0.0) {\n\
        // Add padding for anti-aliasing on both sides.\n\
        totalSize += 3.0;\n\
    }\n\
\n\
    // Clamp to max point size.\n\
    totalSize = min(totalSize, u_maxTotalPointSize);\n\
    // If size is too small, push vertex behind near plane for clipping.\n\
    // Note that context.minimumAliasedPointSize \"will be at most 1.0\".\n\
    if (totalSize < 1.0)\n\
    {\n\
        positionEC.xyz = vec3(0.0);\n\
        totalSize = 1.0;\n\
    }\n\
\n\
    float translucency = 1.0;\n\
#ifdef EYE_DISTANCE_TRANSLUCENCY\n\
    translucency = czm_nearFarScalar(translucencyByDistance, lengthSq);\n\
    // push vertex behind near plane for clipping\n\
    if (translucency < 0.004)\n\
    {\n\
        positionEC.xyz = vec3(0.0);\n\
    }\n\
#endif\n\
\n\
#ifdef DISTANCE_DISPLAY_CONDITION\n\
    float nearSq = distanceDisplayConditionAndDisableDepthAndSplitDirection.x;\n\
    float farSq = distanceDisplayConditionAndDisableDepthAndSplitDirection.y;\n\
    if (lengthSq < nearSq || lengthSq > farSq) {\n\
        // push vertex behind camera to force it to be clipped\n\
        positionEC.xyz = vec3(0.0, 0.0, 1.0);\n\
    }\n\
#endif\n\
\n\
    gl_Position = czm_projection * positionEC;\n\
    czm_vertexLogDepth();\n\
\n\
#ifdef DISABLE_DEPTH_DISTANCE\n\
    float disableDepthTestDistance = distanceDisplayConditionAndDisableDepthAndSplitDirection.z;\n\
    if (disableDepthTestDistance == 0.0 && czm_minimumDisableDepthTestDistance != 0.0)\n\
    {\n\
        disableDepthTestDistance = czm_minimumDisableDepthTestDistance;\n\
    }\n\
\n\
    if (disableDepthTestDistance != 0.0)\n\
    {\n\
        // Don't try to \"multiply both sides\" by w.  Greater/less-than comparisons won't work for negative values of w.\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\
            // Position z on the near plane.\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\
\n\
    v_color = color;\n\
    v_color.a *= translucency * show;\n\
    v_outlineColor = outlineColor;\n\
    v_outlineColor.a *= translucency * show;\n\
\n\
    v_innerPercent = 1.0 - outlinePercent;\n\
    v_pixelDistance = 2.0 / totalSize;\n\
    gl_PointSize = totalSize * show;\n\
    gl_Position *= show;\n\
\n\
    v_pickColor = pickColor;\n\
    v_splitDirection = distanceDisplayConditionAndDisableDepthAndSplitDirection.w;\n\
}\n\
";