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| /**
| * DOC_TBA
| *
| * @name czm_eyeOffset
| * @glslFunction
| *
| * @param {vec4} positionEC DOC_TBA.
| * @param {vec3} eyeOffset DOC_TBA.
| *
| * @returns {vec4} DOC_TBA.
| */
| vec4 czm_eyeOffset(vec4 positionEC, vec3 eyeOffset)
| {
| // This equation is approximate in x and y.
| vec4 p = positionEC;
| vec4 zEyeOffset = normalize(p) * eyeOffset.z;
| p.xy += eyeOffset.xy + zEyeOffset.xy;
| p.z += zEyeOffset.z;
| return p;
| }
|
|
