//This file is automatically rebuilt by the Cesium build process.
|
export default "varying vec3 v_forwardDirectionEC;\n\
|
varying vec3 v_texcoordNormalizationAndHalfWidth;\n\
|
varying float v_batchId;\n\
|
\n\
|
#ifdef PER_INSTANCE_COLOR\n\
|
varying vec4 v_color;\n\
|
#else\n\
|
varying vec2 v_alignedPlaneDistances;\n\
|
varying float v_texcoordT;\n\
|
#endif\n\
|
\n\
|
float rayPlaneDistanceUnsafe(vec3 origin, vec3 direction, vec3 planeNormal, float planeDistance) {\n\
|
// We don't expect the ray to ever be parallel to the plane\n\
|
return (-planeDistance - dot(planeNormal, origin)) / dot(planeNormal, direction);\n\
|
}\n\
|
\n\
|
void main(void)\n\
|
{\n\
|
vec4 eyeCoordinate = gl_FragCoord;\n\
|
eyeCoordinate /= eyeCoordinate.w;\n\
|
\n\
|
#ifdef PER_INSTANCE_COLOR\n\
|
gl_FragColor = czm_gammaCorrect(v_color);\n\
|
#else // PER_INSTANCE_COLOR\n\
|
// Use distances for planes aligned with segment to prevent skew in dashing\n\
|
float distanceFromStart = rayPlaneDistanceUnsafe(eyeCoordinate.xyz, -v_forwardDirectionEC, v_forwardDirectionEC.xyz, v_alignedPlaneDistances.x);\n\
|
float distanceFromEnd = rayPlaneDistanceUnsafe(eyeCoordinate.xyz, v_forwardDirectionEC, -v_forwardDirectionEC.xyz, v_alignedPlaneDistances.y);\n\
|
\n\
|
// Clamp - distance to aligned planes may be negative due to mitering\n\
|
distanceFromStart = max(0.0, distanceFromStart);\n\
|
distanceFromEnd = max(0.0, distanceFromEnd);\n\
|
\n\
|
float s = distanceFromStart / (distanceFromStart + distanceFromEnd);\n\
|
s = (s * v_texcoordNormalizationAndHalfWidth.x) + v_texcoordNormalizationAndHalfWidth.y;\n\
|
\n\
|
czm_materialInput materialInput;\n\
|
\n\
|
materialInput.s = s;\n\
|
materialInput.st = vec2(s, v_texcoordT);\n\
|
materialInput.str = vec3(s, v_texcoordT, 0.0);\n\
|
\n\
|
czm_material material = czm_getMaterial(materialInput);\n\
|
gl_FragColor = vec4(material.diffuse + material.emission, material.alpha);\n\
|
#endif // PER_INSTANCE_COLOR\n\
|
}\n\
|
";
|
